BOSCH BUI350 Nyon Display Anthracite Instructions

BOSCH BUI350 Nyon Display Anthracite

Safety instructions

Read all the safety information and instructions. Failure to observe the safety information and follow instructions may result in electric shock, fire and/or serious injury.

Save all safety warnings and instructions for future reference.
The term eBike battery is used in these instructions to mean all original Bosch eBike rechargeable battery packs.

• Read and observe the safety warnings and directions contained in all the eBike system operating instructions and in the operating instructions of your eBike.
• Do not allow yourself to be distracted by the on-board computer’s display. If you do not focus exclusively on the traffic, you risk being involved in an accident. If you want to make entries in your on-board computer other than switching the assistance level, stop and enter the appropriate data.
• Set the display brightness so that you can adequately see important information such as speed and warning symbols. Incorrectly set display brightness may lead to dangerous situations.
• Before beginning any exercise programme, seek advice from a doctor about the level of activity that is suitable for you. This is the only way to avoid potential physical overexertion.
• When using a heart rate monitor, the heart rate displayed may be distorted by electromagnetic interference. The heart rates displayed are for reference only. No liability can be accepted for consequences caused by incorrectly displayed heart rates.
• Nyon is not a medical product. The values displayed on the Fitness Screen may differ from the actual values.
• Do not open the on-board computer. Opening the onboard computer may damage it beyond repair and void any warranty claims.
• Do not use the on-board computer as a handle. Lifting the eBike up by the on-board computer can cause irreparable damage to the on-board computer.
• The push assistance function must only be used when pushing the eBike. There is a risk of injury if the wheels of the eBike are not in contact with the ground while using the push assistance.
• When the push assistance is activated, the pedals may turn at the same time. When the push assistance function is activated, make sure that there is enough space between your legs and the turning pedals to avoid the risk of injury.
• When using the walk assistance, make sure that you can control the eBike and that you can hold it securely at all times. Under certain circumstances, the walk assistance may stop (e.g. if the pedals hit an obstacle or if you accidentally let go of the button on the operating unit). The eBike may suddenly move backwards onto you or tip up. This presents a risk for the user particularly if there is additional load on the eBike. When using the walk assistance, do not bring the eBike into situations in which you cannot hold the eBike using your own strength.
• Caution! When using the on-board computer with Bluetooth® and/or WiFi, interference can occur with other devices and equipment, aircraft and medical devices (e.g. pacemakers, hearing aids). Likewise, injury to people and animals in the immediate vicinity cannot be excluded entirely. Do not use the on-board computer with Bluetooth® in the vicinity of medical devices, petrol stations, chemical plants, areas with a potentially explosive atmosphere or on blast sites. Do not use the on-board computer with Bluetooth® in aeroplanes. Avoid using the on-board computer near your body for extended periods.
• The Bluetooth® word mark and logos are registered trademarks owned by Bluetooth SIG, Inc. Any use of such marks by Robert Bosch GmbH, Bosch eBike Systems is under license.

Safety information relating to the navigation system

• Do not plan your routes whilst you are cycling. Stop and wait until you are stationary before entering a new destination. If you do not focus exclusively on the traffic, you risk being involved in an accident.
• Abandon your route if the navigation system suggests a path or road that is too ambitious, risky or dangerous for you based on your cycling ability. Have your navigation system propose an alternative route.
• Do not ignore any road signs, even if the navigation system tells you to take a specific route. The navigation system cannot take roadworks or temporary diversions into account.
• Do not use the navigation system in situations that are safety-critical or unclear (road closures, diversions, etc.). Always carry extra maps and means of communication with you.

Privacy notice
If the on-board computer is sent to Bosch Service because it requires servicing, the data stored on the on-board computer may be transmitted to Bosch.

Product description and specifications

Intended use

The Nyon (BUI350) on-board computer is designed for controlling the eBike and to display cycling data. In addition to the functions shown here, changes to software relating to troubleshooting and functional modifications may be introduced at any time.
To find out more, visit: www.Bosch-eBike.com. Instructions on how to use the app and the portal can be found in the online operating instructions at www.Bosch-eBike.com.
Nyon (BUI350) is not suitable for navigation without a bicycle (for hikers or motorists).

Product features

The numbering of the components shown refers to the illustrations on the graphics pages at the beginning of the manual. All illustrations of bike parts except for the drive unit, onboard computer (including operating unit), speed sensor and the corresponding holders are a schematic representation and may differ on your eBike.

1. Bike light button
2. Protective cap for the USB port
3. On/off button for on-board computer
4. Holder for on-board computer a )
5. On-board computer
6. Display (touch-sensitive)
7. Brightness sensor
8. USB port
9. Release mechanism
10. Next page button
11. Select button
12. Decrease assistance level button
13. Holder for operating unit
14. Previous page button
15. Increase assistance level button
16. Operating unit
17. Start assistance/push assistance WALK button
18. Locking screw for on-board computer
19. Drive unit contacts
20. Operating unit contacts
    
    

a) For mounting on the handlebars, custom solutions are possible even without the use of the handlebar clamps.

Technical data

On-board computer                                         Nyon

Product code| | BUI350
Total internal memory| GB| 8
Max. charging current to USB portA)| mA| 1500
Max. USB port charging voltage| V| 5
USB charging cable| | 1 270 016 360
Operating temperature| °C| –5 to +40
Storage temperature| °C| +10 to +40
Charging temperature| °C| 0 to +40
Internal lithium-ion battery| V mAh| 3.7 1000
Protection rating| | IP55
Supported Wi-Fi standards| | 802.11b/g/n (2.4 GHz)
Weight, approx.| kg| 0.2
Wi-Fi
Frequency| MHz| 2400–2480
Transmission power| mW| < 100
Bluetooth®
Frequency| MHz| 2400–2480
Transmission power| mW| < 10

A) Charging current to charge Nyon. External consumers cannot be charged.

Declaration of Conformity

Robert Bosch GmbH, Bosch eBike Systems, hereby declares that the Nyon radio communication unit complies with Directive 2014/53/EU. The full text of the EU Declaration of Conformity can be accessed at the following Internet address: www.bosch-ebike.com/conformity. Robert Bosch GmbH, Bosch eBike Systems, hereby declares that the Nyon radio communication unit complies with the Radio Equipment Regulations 2017 (SI 2917/1206). The full text of the UK Declaration of Conformity can be accessed at the following Internet address: www.bosch- ebike.com/conformity.

The on-board computer has separate internal antennae for Bluetooth®, Wi-Fi and GPS with a power output. The antennae are not accessible to the user. Any change by the user contravenes the legal authorisation for this product.

Fitting

• Deactivate and remove the on-board computer when fitting or working on the holder. This will avoid malfunctions/improper use.
• Deactivate and remove the on-board computer when fitting or removing the securing screw. This will avoid malfunctions/improper use.

Inserting and removing the on-board computer (see figures A–B)
To insert the on-board computer (5), first fit the lower part into the holder (4) and then press it forward until you can feel the on-board computer engage. Ensure that the onboard computer is firmly engaged. To remove the on-board computer (5), press the release mechanism (9) and remove the on-board computer upwards.

• Remove the on-board computer when you park the eBike.
  It is possible to block the release mechanism with a screw. To do so, remove the holder (4) from the handlebars. Place the on-board computer in the holder. Screw the enclosed locking screw (18) (M3 thread, 5 mm long) from below into the thread provided in the holder. Fit the holder back onto the handlebars.
  Please note: The locking screw is not designed to prevent theft.

Operation

Starting Operation of the eBike

Requirements
The eBike can only be activated when the following requirements are met:

• A sufficiently charged eBike battery is inserted (see operating instructions for the eBike battery).
• The on-board computer is properly fitted in the holder.
• The internal battery of the on-board computer must be sufficiently charged.

Switching the eBike On and Off
The following options are available for switching on the eBike:

• Once the on-board computer and the eBike battery are fitted, briefly press the on/off button (3) on the on-board computer.
• With the on-board computer inserted, press the on/off button on the eBike battery (bicycle manufacturer-specific solutions are possible when there is no access to the eBike battery on/off button; see the operating instructions from the bicycle manufacturer).

The drive is activated as soon as you start pedalling (except if you are using the walk assistance function or if the assistance level is set to OFF). The drive power varies depending on the assistance level set.
As soon as you stop pedalling when in normal operation, or as soon as you have reached a speed of 25/45 km/h, the drive switches off the assistance. The drive is automatically reactivated as soon you start pedalling again and the speed is below 25/45 km/h.

The following options are available for switching off the eBike:

• Press and hold the on/off button (3) on the on-board computer for at least 3 seconds.

• Switch off the eBike battery using its on/off button (bicycle manufacturer-specific solutions are possible when there is no access to the eBike battery on/off button; see the bicycle manufacturer operating instructions).
  Note: This puts the Nyon (BUI350) into a standby mode.

• Remove the on-board computer from its holder. If no power is drawn from the drive for about 10 minutes
  (e.g. because the eBike is not moving) and no button is pressed on the on-board computer or the operating unit of the eBike, the eBike will switch off automatically.
  Nyon (BUI350) goes into standby mode as a result.

Standby Mode
You can put your on-board computer into a standby mode, which enables the on- board computer and system to start up more quickly.
Standby mode can be activated as follows:

• To do this, press the on/off button (3) on the on-board computer for at least 1 second, but no longer than 3 seconds.
• Wait 10 minutes until the system switches off.
• Switch the eBike battery off using the on/off button on the eBike battery.

Pressing the on/off button (3) on the on-board computer for at least 1 second ends standby mode. Standby mode ends and the on-board computer automatically switches off if the state of charge of the on-board computer’s internal battery is less than 75 %. In any case, the onboard computer switches off at midnight (00:00) at the latest.
If Nyon (BUI350) cannot be switched on or does not work properly, press and hold the on/off button (for approx. 15 seconds). This may correct the malfunction.

Power supply of the on-board computer

If the on-board computer is in the holder (4), a sufficiently charged eBike battery is inserted into the eBike and the eBike is switched on, then the on-board computer internal battery is powered and charged by the eBike battery. If the on-board computer is removed from the holder (4), the power is supplied by the internal battery of the on-board computer. The state of charge of the internal battery of the on-board computer is displayed in the top left corner of the status bar.
If the internal battery of the on-board computer is running low, a warning message appears on the display. To charge the on-board computer’s internal battery, slide the on-board computer back onto the holder (4). Note that if you do not charge the eBike battery straight away, the eBike will automatically switch off after ten minutes of inactivity. If this happens, the on-board computer’s internal battery will also stop charging. You can also charge the on-board computer via the USB port (8). To do this, open the protective cap (2). Use a Micro USB cable to connect the USB port on the on-board computer to a commercially available USB charger (not included with the product as standard) or to the USB port of a computer (max. 5 V charging voltage; max. 1500 mA charging current). If the internal battery of the on- board computer is not recharged, the date and time will be retained for approx. 6 months.
Note: To maximize the service life of the on-board computer’s internal battery, it should be recharged for one hour every three months. After use, the USB port must be carefully resealed with the protective cap (2).

u USB connections are not waterproof. When cycling in the rain, do not connect any external devices and make sure that the USB port is fully sealed by the protective cover (2).
It is not possible to charge external devices via the USB port.

Battery charge indicator of the eBike battery

The battery charge indicator for the eBike battery g (see “”, page English – 8) can be read on the status bar. The eBike battery’s state of charge is also indicated by the LEDs on the eBike battery itself.

is switched off. The remaining capacity will be provided for the bike lights and the on-board computer.

If the eBike battery is being charged on the bike, a corresponding notification will be displayed. If the on-board computer is removed from the holder (4), the state of charge that was last displayed for the eBike battery is saved.

Initial operation of the on-board computer

• Before first use, remove the protective film from the display in order to ensure the full functionality of the on-board computer. If the protective film remains on the display, this can impair the functionality/performance of the on-board computer.
• The full functionality of the on-board computer cannot be guaranteed if the protective display film is used.
  Nyon is supplied with a partially charged battery. Before first use, the battery must be fully charged via the USB port or the eBike.

When you switch on the on-board computer, you can set off after a short period of time (about 4 seconds). During the subsequent period, the on-board computer loads the complete operating system in the background.
Note: When switching on the on-board computer for the first time, the on- board computer requires a longer period before it is ready for use. If the on- board computer is connected to the Wi-Fi, the user is informed of any new updates, where applicable. Download the update and install the latest version.

Creating a User ID
To be able to use all functions of the on-board computer, you must register online. With a user ID, you can analyze your ride data, plan offline routes and transfer these routes to the on-board computer. You can set up a user ID via your Bosch eBike Connect smartphone app or simply at www.ebike- connect.com. Enter the details required for registration. The Bosch eBike Connect smartphone app is available to download free of charge from the App Store (for Apple iPhones) or from the Google Play Store (for Android devices).

Connecting the On-board Computer with the Portal

Connect the on-board computer with the portal via a Wi-Fi connection.
Note: The on-board computer does not support the use of router channels 12 and 13. If, for example, your router is set as fixed on channel 12 or 13, these channels are not displayed in the list of available networks on the on- board computer. If necessary, adjust the settings of the router accordingly, in order to be able to connect the on-board computer with your network.

To do this, proceed as follows:

• Press  on the < Login> on the  .
• Select < WiFi> .
• Select a network.
• Enter your username and password.

Once you have connected successfully, all data that you have shared in your profile in the portal is synchronised with the on-board computer.

Connecting to the On-Board Computer using the Bosch eBike Connect App

Follow these steps to establish a connection to your smartphone:

• Load the app.
• Select the tab < My eBike> .
• Select < Add New eBike device> .
• Add Nyon (BUI350).

The app will then display an instruction to press and hold the bike lighting button (1) on the on-board computer for 5 seconds. Press and hold the button (1) for at least 5 seconds. The onboard computer automatically activates the Bluetooth® Low Energy connection and switches to pairing mode. Follow the instructions on the screen. Once pairing is complete, the user data is synchronised.
Note: The Bluetooth® connection does not have to be activated manually.

Setting the assistance level

On the operating unit (16), you can set the level of assistance you want the eBike drive to provide you with while pedalling. The assistance level can be changed at any time, even while cycling.
Note: In some models, the assistance level may be preset and cannot be changed. There may also be fewer assistance levels available than stated here.

The following assistance levels are available as a maximum:

• OFF: Drive assistance is switched off. The eBike can only be moved by pedalling, as with a normal bicycle. The walk assistance cannot be activated at this assistance level.

• ECO: Effective assistance with maximum efficiency, for maximum range

• TOUR/TOUR+:
  TOUR: Steady assistance, long range for touring
  TOUR+: Dynamic assistance for natural, sporty cycling (only in conjunction with eMTB)

• SPORT/eMTB:
  SPORT: Powerful assistance, for mountain biking and cycling in urban traffic
  eMTB: Optimum assistance whatever the terrain, rapid acceleration when starting from a standstill, improved dynamics and top performance (eMTB only available in combination with the drive units BDU250P CX, BDU365, BDU450 CX and BDU480 CX. A software update may be required.)

• TURBO: Maximum assistance even at a high cadence, for sporty cycling.

To increase the assistance level, press the + button (15) on the operating unit repeatedly until the required assistance level appears on the indicator. To decrease the assistance level, press the – button (12).
The requested drive power appears on the display j. The maximum drive power depends on the selected assistance level.
When the on-board computer is removed from the holder (4), the assistance level that was last displayed is saved; the drive power indicator j remains empty.

Switching the push assistance on/off

The walk assistance makes it easier to push your eBike. The speed in this function depends on the selected gear and can reach a maximum of 6 km/h.

• The push assistance function must only be used when pushing the eBike. There is a risk of injury if the wheels of the eBike are not in contact with the ground while using the push assistance.
  To activate the walk assistance, briefly press the WALK button on your on- board computer. Once it is activated, press the + button within 10 s and keep it held down. The eBike drive is now switched on.
  Note: The push assistance cannot be activated at assistance level OFF.

The walk assistance is switched off as soon as one of the following occurs:

• You release the + button (15),
• the wheels of the eBike are locked (e.g. by applying the brakes or hitting an obstacle),
• the speed exceeds 6 km/h.

The push assistance function is subject to local regulations; the way it works may therefore differ from the description above, or the function may even be deactivated completely.

Switching bicycle lights on/off

On the model in which the lighting is powered by the eBike system, the front and rear lights can be switched on and off at the same time via the on-board computer using the bike lights button (1).
Check that your bike lights are working correctly before every use.
With the light switched on, the lighting f indicator appears in the status bar on the display.
Switching the bike lights on and off has no effect on the backlighting of the display.

Lock (premium function)

The Lock function is available to purchase from the  in the eBike Connect app. Once the Lock function is switched on by disconnecting the on-board computer, the eBike drive unit assistance is deactivated. It can only then be activated using the on-board computer belonging to the eBike. Detailed operating instructions can be found online at www.Bosch‑eBike.com.

Activity tracking

In order to record activities, you must be registered with and logged into the eBike Connect portal or the eBike Connect app.
To record activities, you must consent to the storage of your location data in the portal and/or in the app. Without this, your activities will not be shown in the portal or the app. The position is recorded only if you are registered as a user on the on-board computer. Once synchronization is complete, the activities will be displayed in the app and in the portal whilst you are riding.

eShift (optional)

eShift is the integration of electronic gear-shifting systems into the eBike. The eShift components are electrically connected to the drive unit by the manufacturer. The separate operating instructions describe how to operate the electronic gear-shifting systems.

ABS – anti-lock braking system (optional)
If the wheel is fitted with a Bosch eBike ABS with no external control lights, the control lights will be shown on the Nyon (BUI350) display when the system starts and in the event of a fault. For detailed information on the ABS and how it works, please refer to the ABS operating instructions.

Software Updates

If Nyon (BUI350) is connected via Wi-Fi, checks for more recent software are carried out automatically. If a software update is available, the user is informed via a notification. Alternatively, the user can search for updates manually under < System Setting> .

Notes on Cycling with the eBike

Taking care of your eBike
Please observe the operating and storage temperatures of the eBike components. Protect the drive unit, on-board computer and eBike battery against extreme temperatures (e.g. from intense sunlight without adequate ventilation). The components (especially the eBike battery) can become damaged through extreme temperatures. Keep the screen of your Nyon clean. Dirt can cause faulty brightness detection. The day/night changeover in navigation mode can be distorted. An abrupt change in ambient conditions can cause the screen to fog up from inside. After a short time, the temperature equalizes and the fog disappears.

The Nyon operating system
The Nyon operating system consists of three components:

1. The Nyon on-board computer with operating unit
2. The Bosch eBike Connect smartphone app
3. The online portal at www.ebike‑connect.com
   

Many configurations and features can be managed and used on all components. Some configurations and features can be accessed or operated only via certain components. Data is synchronised automatically when a Bluetooth®/Internet connection is available. The following table provides an overview of the available features.

Functions of the online portal| | |

③

---|---|---|---
Functions of the smartphone app| |

②

|
Functions of the on-board computer|

①

|

|
| | |
Login| ✔| ✔| ✔
Registration| | ✔| ✔
Changes settings| ✔| ✔| ✔
Records riding data| ✔| |
Displays riding data in real time| ✔| |
Processes/analyses riding data| | ✔| ✔
Creates user-defined displays| ✔| |
Current location indicator| ✔A)| ✔A)| ✔
Navigation| ✔| |
Route planning| ✔| ✔| ✔
Remaining range indicator

(circle around the current location)

| ✔| |
Training effect in real time| ✔| |
Overview of journeys| | ✔| ✔
Purchase of premium features| | ✔|

A) GPS required

Premium features
The standard features of the Nyon (BUI350) operating system can be extended via the App Store for Apple iPhones and Google Play Store for Android devices through the purchase of premium features.
In addition to the free Bosch eBike Connect app, there are several fee-based premium features. A detailed list of the additional apps that are available can be found in the online operating instructions at www.Bosch‑eBike.com.

Displays and configurations of the on-board computer

Note: All screenshots showing the display and text on the following pages are from the approved software version. The display and/or text may change slightly following a software update.
Nyon is fitted with a touch-sensitive screen. Swiping left or right scrolls between the individual screens. Tapping on the Status Screen opens functions or submenus.
Nyon has standard screens and preset screens. The user can also create their own screens. The user can set the order and number of screens. Max. 25 tiles can be used for the screens. The screens in these operating instructions are described as per the basic configuration of the on-board computer on delivery.
When Nyon is switched off, the last displayed screen is saved and displayed again next time it’s switched on. The first time Nyon is used and for certain screens, an introduction is automatically displayed. You can view these again at any time at < Setting> → < Information> → < **Introductiontonyon

** .

The standard screens are:

• < Status Screen>
• < Ride Screen>
• < Trip Data>
• < Map Screen>
• < Trip Analysis>

The preset screens include:

• < Fitness>
• < eMTB>
• < Basic>

The preset screens with large display include:

• < Savings>
• < Weather>
• < Goals>
• < Altitude Graph>

You can use the < (14) and > (10) buttons to switch between the different riding value information pages (even while riding). This way, you can keep both hands on the handlebars while cycling. You can use the + (15) and – (12) buttons to increase or decrease the assistance level.
The < Settings> that can be accessed via the < Status **Screen >** cannot be changed while riding.

< Status Screen>

s1 button
s2 Date
s3
This is where you can switch between light and dark backgrounds.
s4 Button < Brightness>
This is where you can select from the following brightness
levels: 25% | 50% | 75% | 100% | Auto.
To access the Brightness menu, press and hold the < Brightness> button. Auto mode can be individually adjusted here.
s5 Smartphone battery charge
s6
This is where recent events are displayed (e.g. maps download)
s7 Time of last synchronization
s8 Synchronization button
s9 Button < Screens>
You can use this button to adjust the screen order and contents.
s10 Button < Bluetooth>
Tap: Activate/deactivate
Press and hold: Quick access to Bluetooth® menu
s11 Button < WiFi>
Tap: Activate/deactivate
Press and hold: Quick access to Wi-Fi® menu
s12
This is where the user can connect with their ID.

< Settings>
You can gain access to the Settings menu via the < Settings> button. The < Settings> cannot be accessed or changed while riding.

Tap the < Settings> button and select the required setting/ the submenu. Pressing the Back arrow in the menu bar gets you to the previous menu. You can close the Settings menu by pressing the x symbol (on the right in the menu bar).

You can find the following superordinate sections on the first settings level:

• < Map Settings>
  Via < Map Settings>, the map display (2D/3D) can be selected, the downloaded maps and map updates checked and recommended maps downloaded. The system automatically checks which map matches your current location, and suggests regions and country maps in the direct surroundings.

• < My eBike> – Settings for your eBike:
  The counters, such as average values or the number of kilometres travelled that day, can be reset to “0” either automatically or manually, and so can the range. You can change the wheel circumference value that was preset by the manufacturer by ±5%. If your eBike features eShift, you can also configure your eShift system here. The bicycle dealer may base the service date on the distance travelled and/or on a period of time. The bike component page displays the serial number and hardware and software versions for each component, in addition to other key data which is relevant for the components.

• < Screen Management>
  This menu item can be used to adapt the screen and tile contents to suit your personal requirements.

• < Connections>
  The Bluetooth® and Wi-Fi connections can be set here. To be able to use the heart rate display, you must add either the < Fitness> from the preset screens or a heart rate tile to your standard screens. When you are connected, the heart symbol in the tile will go blue. Recommended heart rate monitors:

  • Polar H7
  • Polar H10 Heart Rate Sensor
  • Run tastic Heart Rate Combo Monitor
  • Wahoo TICKR Heart Rate Monitor
  • Berry King Heartbeat chest strap
  • Berry King Sport beat armband May be compatible with other devices.

• < My Profile>
  The data of the active user can be viewed here.

• < System Settings>
  You can display the speed and distance in kilometres or miles, display the clock in 12- or 24-hour format, adjust the time, date and time zone and select your preferred language. You can reset Nyon to factory settings, start a software update (if available) and choose between a black and white design. The time and the time zone are automatically updated via the satellite signal as soon as there’s a connection.

• < Information>
  Information on FAQs, certifications, contact information, information on license’s. You can find a detailed description of each parameter in the online operating instructions at www.Bosch-eBike.com.

< Ride Screen>

a Speed
b Unit of speed
c Time a )
The current time is shown according to the time zone selected. It is set automatically via GPS.
d Assistance level
The colour of the screen changes depending on the assistance level.
e Connection to heart rate monitor
Is also a placeholder for further events. The indicator is shown when the event occurs (e.g. connection to smartphone).
f Lighting
The symbol is displayed if the lighting is switched on.
g Charge indicator of the eBike battery
h Range informationb)c)
i Distance travelled
j Drive power
k Your performance
w Performance indicator

a) For eBikes with ABS, the time is replaced with the ((ABS)) logo when the system starts or in the event of a fault with ABS.
b) When navigation is active, a chequered flag at the end of the scale and the remaining distance to the destination are displayed. If the eBike battery has sufficient capacity, the righthand side of the scale is green. If the right-hand side of the scale is orange or red, it is unsafe at the current assistance level or not possible to reach your destination with drive assistance. Selecting a lower assistance level may enable the remaining eBike battery capacity to reach the required destination.
c) When navigation is not active, kilometres travelled are displayed on the left and range on the right. The a … g indicators form the status bar and are shown on every screen.

When the on-board computer is removed from the holder, the status bar changes:

l Battery charge indicator for the on-board computer internal battery If Bluetooth® and/or Wi-Fi connections are available, the corresponding icon is displayed in the centre.
g Battery charge indicator of the eBike battery Latest state of charge of the eBike battery

< Trip Data>

i
Trip distance indicator
m
Trip time indicator
n <Avg. Speed>
Average speed indicator
o
Altitude above sea level indicator

< Map Screen>
Navigation is carried out using map data based on Open Street Map (OSM).
When you switch on Nyon, it begins the satellite search to receive GPS signals. When sufficient satellites have been found, the location point changes colour from grey to blue. In the case of unfavourable weather conditions or locations, the satellite search may take a little longer. If the application fails to find satellite signals over a prolonged period of time, restart Nyon.
The first search for satellites may take a few minutes. To achieve the most accurate positioning, the first satellite search should be done outdoors. Ideally, stay stationary for a few minutes, even if the position has already be found.
on the map. To increase the size of the map section, touch the touchscreen with two fingers and spread them out. To decrease the size of the map section, pinch both fingers together. To move the map, simply move the map with both fingers on the screen. To select a destination , press and hold one finger on the map.

n1 Navigation search
n2 Navigation functions
In the navigation functions n2, you can select your destinations so that you can reach them using the current state of charge.
When navigation is active, the user receives information about whether it is possible to reach the destination with the current assistance mode and current state of charge of the eBike battery.
The circle around your location shows how far you can go, taking into consideration the assistance level set and the terrain ahead with the current state of charge of the eBike battery. Changing the assistance level means that the circle adapts accordingly.
Selecting the navigation search n1 brings up the following menu:

n3 Input field
Enter the address of your destination or a POI (e.g. a restaurant) here. Depending on what you enter, you are shown all possible addresses within 100 km. The search results are always displayed in close proximity on the map. That helps you to assign the location faster for similar hits.
n4 Button
Selecting this button guides you to your home address. a)
n5 Button
Selecting this button guides you to your workplace .a)
n6 Button
Selecting this button means you can find your saved locations that have been synchronised by the app or the portal.
n7 Button
This displays the routes that have been saved in the portal, followed by the synchronised routes.
n8 Button
Selecting this button means you can find destinations of general interest in your surrounding area, such as restaurants or shopping facilities. The results are displayed in a list.
Tap on the symbol to have the results displayed on the map.
n9 Button
Selecting this button means you can change the map display or manage your maps.
The < Map Color Style> function can be found in the < Map Settings>.

• < Auto>: The map display is automatically adapted via the brightness sensor.
• < Day Mode>: The map display is always bright.
• < Night Mode>: The map display is always dark.
• < As Background>: The map display changes in relation to the selected colour scheme.

n10
This is where your recent routes and locations are listed.

a) Data from the app and the portal is used and displayed. When you have entered the destination, you are then shown the fastest route ( ). Additionally, you can select the most scenic route ( ) or the route for mountain bikes ( ). Alternatively, you can opt to be guided home (if you have entered your home address in the portal), select one of the recent destinations used, or choose from saved locations and routes.
The eBike battery’s remaining range is calculated and displayed, taking into consideration the topographical conditions. The calculation of the topographic range extends to no more than 100 km.
If you have imported or planned GPX routes via the online portal, these will be transferred to your Nyon via Bluetooth® or via a Wi-Fi connection. You can start these routes when you wish. If you are near a route, you can have the navigation system guide you to the starting point or you can start navigating along the route immediately.
At temperatures below 0 °C, the elevation measurement is likely to deviate significantly.

Active Navigation
The following figure shows an example active navigation with explanations of the symbols depicted.

n11 Distance to destination
n12 Time of arrival
n13 Destination
n14 Current position
n15 Battery range indicator
n16 Open and close panel (back to search)
n17 Switch between 2D and 3D view
n18 End active navigation

The following functions are also available:

Centre view (only visible if the map has been moved or the zoom function has been used)
Skip waypoints (only visible if the route has been planned with intermediate destinations in the online portal)

< Auto Zoom 2D>
The < Auto Zoom 2D> zoom function can be found in the < Map Settings>. The map section is optimally adapted depending on the speed.

< Rerouting>
If you would like to follow a precisely defined route or a previously planned GPX track (e.g. on trails) exactly, you can deactivate recalculation of the route. The function can be activated and deactivated in the < Rerouting> menu item under < Map Settings>

< Trip Analysis>

p
Indicator for usage of different riding modes
q <Max. Speed>
Maximum speed indicator
r
Ascent indicator
s <Avg. Power>
Indicator for the ratio of your own power compared to drive power

< Savings>

Here you can compare savings against a car journey. Tapping on the tile allows the view to be switched between saved monetary value and saved CO2. All values are accumulated for a single journey. The values for the week and the preceding week are accumulated and displayed. The values are set to 0 when the journey data is reset. The settings can be individually adapted via the Settings menu.

Creating Your Own Screens

To integrate preset screens or create new screens, go to the Status Screen and select the s9 button. 4 icons are offered in the task bar to enable you to make changes. You also have the option to start the function via < Settings> → < Screens>.
The following options are available:

• Move screens
• Create new screens
• Delete screens
• Add preset screens

When creating your own screen, you can add the < Speed>, and < My Power> tiles with an integrated performance indicator.
If the needle of the performance indicator is on the left-hand side, the background will turn orange. This means that your performance is below the average value.
If the needle of the performance indicator is on the righthand side or in the middle, the background will turn green. This means that your performance is greater than or equal to the average value.

< Fitness> (preset screen)

f1
Your power indicator
f2
Cadence indicator
f3
Heart rate indicator
f4
Calories burned indicator

Determine destinations
Here you can determine and pursue your weekly and monthly destinations. Tapping on the < Goals> tile allows you to switch between weekly destinations, monthly destinations and an annual overview.

The following destinations can be individually defined:

• < Calories>
• < Distance>
• < Ascent>
• < Riding Time>

< eMTB> (preset screen)

t
Ascent indicator
o
Altitude above sea level indicator
u
Altitude graph indicator
v <Max. Slope>
Maximum slope indicator
r
Ascent indicator

< Basic> (preset screen)

i
Trip distance indicator
m
Trip time indicator
a <Avg. Speed>
Average speed indicator

< Quick Menu>
Selected settings are displayed on the quick menu. These settings can also be changed while riding. You can access the quick menu via the select button (11). You can switch between the submenus with the < (14) and > (10) buttons. Select the items on the submenu using the + (15) and – (12) buttons. You cannot access the < Quick Menu> from the < Status **Screen >.
The following submenus can be accessed from the :**

• < Trip Data>
  This submenu allows you to reset all data on the journey so far to zero.

• < Select Destination>
  Via this submenu, you can save your current position, return to a saved position or receive directions to take you home.

• < Map Zoom>
  This submenu allows you to increase or decrease the size of the map section.

• < Brightness>
  This submenu allows you to select from the following brightness levels: 25 % | 50 % | 75 % | 100 % | Auto.

• < Design>
  This submenu allows you to select a light or dark background.

• < eShift> (optional)
  This submenu allows you to set the cadence.

• < Custom Riding Modes>
  (premium function, obtainable via the App Store or Google Play Store) Via this submenu, you can select custom riding modes

• < Quick Menu>
  This submenu allows you to exit the < Quick Menu>.
  

Error code display
The ebike’s components are continuously and automatically monitored. If an error is detected, the corresponding error code is displayed on the on-board computer. The drive may be automatically shut down, depending on the type of error. However, if you wish to continue cycling, you will always be able to do so without assistance from the drive. Before undertaking any other journeys, the eBike should be checked.

• Have all repairs performed only by an authorised bike dealer.

any buttons are stuck, e.g. as a result of dirt finding its way in. Clean the buttons if need be.
414| Operating unit connection problem| Have the connections checked
418| One or more buttons on the operating unit are disabled.| Check whether any buttons are stuck, e.g. as a result of dirt finding its way in. Clean the buttons if need be.
419| Configuration error| Restart the system. If the problem persists, contact your Bosch eBike dealer.
422| Drive unit connection problem| Have the connections checked
423| eBike battery connection problem| Have the connections checked
424| Communication problem between components| Have the connections checked
426| Internal time-out error| Restart the system. If the problem persists, contact your Bosch eBike dealer. With this error, it is not possible to bring up the wheel circumference in the basic settings menu or to adjust it.
430| Internal battery of the on-board computer is flat (does not apply to BUI350)| Charge the on-board computer (in the holder or via the USB port)
431| Software version error| Restart the system. If the problem persists, contact your Bosch eBike dealer.
440| Internal drive unit fault| Restart the system. If the problem persists, contact your Bosch eBike dealer.
450| Internal software error| Restart the system. If the problem persists, contact your Bosch eBike dealer.
460| Error at USB port| Remove the cable from the USB port of the on-board computer. If the problem persists, contact your Bosch eBike dealer.
490| Internal fault of the on-board computer| Have the on-board computer checked
500| Internal drive unit fault| Restart the system. If the problem persists, contact your Bosch eBike dealer.
502| Bike light fault| Check the light and the associated wiring. Restart the system. If the problem persists, contact your Bosch eBike dealer.
503| Speed sensor fault| Restart the system. If the problem persists, contact your Bosch eBike dealer.
504| Speed signal distortion detected.| Check that the spoke magnet is positioned correctly, and adjust it if necessary. Check that nothing has been tampered with (tuning). Drive assistance is reduced.
510| Internal sensor fault| Restart the system. If the problem persists, contact your Bosch eBike dealer.
511| Internal drive unit fault| Restart the system. If the problem persists, contact your Bosch eBike dealer.
530| Battery fault| Switch off the eBike, remove the eBike battery and reinsert the eBike battery. Restart the system. If the problem persists, contact your Bosch eBike dealer.
531| Configuration error| Restart the system. If the problem persists, contact your Bosch eBike dealer.
540| Temperature error| The eBike is outside of the permissible temperature range. Switch off the eBike system and allow the drive unit to either cool down or heat up to the permissible temperature range. Restart the system. If the problem persists, contact your Bosch eBike dealer.
550| An impermissible load has been detected.| Remove the load. Restart the system. If the problem persists, con- tact your Bosch eBike dealer.
580| Software version error| Restart the system. If the problem persists, contact your Bosch eBike dealer.
591| Authentication error| Switch off the eBike system. Remove the battery pack and reinsert it. Restart the system. If the problem persists, contact your Bosch eBike dealer.
592| Incompatible component| Use a compatible display. If the problem persists, contact your Bosch eBike dealer.
593| Configuration error| Restart the system. If the problem persists, contact your Bosch eBike dealer.
595, 596| Communication error| Check the wiring to the drive and restart the system. If the problem persists, contact your Bosch eBike dealer.
602| Internal battery fault| Restart the system. If the problem persists, contact your Bosch eBike dealer.
603| Internal battery fault| Restart the system. If the problem persists, contact your Bosch eBike dealer.
605| Battery temperature error| The battery is outside of the permissible temperature range. Switch off the eBike system and allow the battery to either cool down or heat up to the permissible temperature range. Restart the system. If the problem persists, contact your Bosch eBike dealer.
606| External battery fault| Check the wiring. Restart the system. If the problem persists, contact your Bosch eBike dealer.
610| Battery voltage error| Restart the system. If the problem persists, contact your Bosch eBike dealer.
620| Charger fault| Replace the charger. Contact your Bosch eBike dealer.
640| Internal battery fault| Restart the system. If the problem persists, contact your Bosch eBike dealer.
655| Multiple battery faults| Switch off the eBike system. Remove the battery pack and reinsert it. Restart the system. If the problem persists, contact your Bosch eBike dealer.
656| Software version error| Contact your Bosch eBike dealer so that they can perform a software update.
7xx| Error relating to third-party components| Observe the information in the operating instructions of the re- spective component manufacturer.
800| Internal ABS fault| Contact your Bosch eBike dealer.
810| Implausible signals from the wheel speed sensor| Contact your Bosch eBike dealer.
820| Fault in the wire to the front wheel speed sensor| Contact your Bosch eBike dealer.
821 to 826| Implausible signals from the front wheel speed sensor The sensor disc may be missing, defective or fitted incorrectly; there is a significant difference in diameter between the front wheel and the rear wheel; extreme riding situation, e.g. riding solely on the rear wheel| Restart the system and carry out a test ride lasting at least two minutes. The ABS indicator light must go out. If the problem persists, contact your Bosch eBike dealer.
830| Fault in the wire to the rear wheel speed sensor| Contact your Bosch eBike dealer.
831 833 to 835| Implausible signals from the rear wheel speed sensor The sensor disc may be missing, defective or fitted incorrectly; there is a significant difference in diameter between the front wheel and the rear wheel; extreme riding situation, e.g. riding solely on the rear wheel| Restart the system and carry out a test ride lasting at least two minutes. The ABS indicator light must go out. If the problem persists, contact your Bosch eBike dealer.
840| Internal ABS fault| Contact your Bosch eBike dealer.
850| Internal ABS fault| Contact your Bosch eBike dealer.
860, 861| Fault in the power supply| Restart the system. If the problem persists, contact your Bosch eBike dealer.
870, 871 880 883 to 885| Communication error| Restart the system. If the problem persists, contact your Bosch eBike dealer.
889| Internal ABS fault| Contact your Bosch eBike dealer.
890| ABS indicator light is defective or missing; ABS may not be working.| Contact your Bosch eBike dealer.
No display| Internal fault of the on-board computer| Restart your eBike system by switching it off and back on.

Maintenance and servicing

• Deactivate the on-board computer if carrying out cleaning, maintenance or service work on the holder or on-board computer. This is the only way to avoid malfunctions/improper use.

Maintenance and cleaning

Do not clean any of the components with pressurized water. Keep the display of your on-board computer clean. Dirt can cause faulty brightness detection.
Clean your on-board computer using a soft cloth dampened only with water. Do not use cleaning products of any kind. Have your eBike checked by an expert at least once a year (including mechanical parts, up-to-date ness of system software).
In addition, the bicycle dealer may base the service date on the distance travelled and/or on a period of time. In this case, the on-board computer displays a message telling you when the service date is due each time it is switched on.
Please have your eBike serviced and repaired by an authorised bicycle dealer.

• Have all repairs performed only by an authorised bike dealer.

After-sales service and advice on using products
If you have any questions about the eBike and its components, contact an authorised bicycle dealer. For contact details of authorised bike dealerships, please visit www.bosch-ebike.com.

Transport
u If you transport your eBike attached to the outside of your car, e.g. on a bike rack, remove the on-board computer and the eBike battery to avoid damaging them.

Disposal and substances in products
You can find information about substances in products at the following link:
www.bosch-ebike.com/en/material-compliance.

Do not dispose of eBikes and their components with household waste.
The drive unit, on-board computer incl. operating unit, eBike battery, speed sensor, accessories and packaging should be disposed of in an environmentally correct manner.
Check that your personal data has been deleted from the device.
Batteries that can be removed from the power tool without destruction must be removed before disposal itself and sorted for separate battery collection.

In accordance with Directive 2012/19/EU and Directive 2006/66/EC respectively, electronic devices that are no longer usable and defective/drained batteries must be collected separately and recycled in an environmentally friendly manner.
Electrical and electronic equipment are collected separately for pre-sorting by type and helps to ensure that raw materials are treated and recovered properly, thereby protecting people and the environment. Please return Bosch eBike components that are no longer usable free of charge to an authorised bicycle dealer or to a recycling facility.
Subject to change without notice.

Documents / Resources

| BOSCH BUI350 Nyon Display Anthracite [pdf] Instructions
BUI350 Nyon Display Anthracite, BUI350, Nyon Display Anthracite, Display Anthracite, Anthracite
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References

• Connect.com
• Bosch eBike Systems | Premium eBike systems & smart features - Bosch eBike Systems
• Bosch eBike Systems | Premium eBike systems & smart features - Bosch eBike Systems
• Declaration of conformity - Bosch eBike Systems
• Material Compliance - Bosch eBike Systems
• Bosch eBike Connect

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