HUAWEI STK-L21 Smartphone User Manual

: June 17, 2024
: Huawei

Table of Contents

Know Your Device
Getting Started
Dual SIM Card Management
For More Information
Safety Information
Disposal and recycling information
EU regulatory conformance
Frequency Bands and Power
Accessories and Software Information
Legal Notice
References
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Download This Manual (PDF format)

Quick Start Guide
STK-L21
STK-L22
STK-LX3

Know Your Device

Before using the device, familiarize yourself with its basic operations.

To power on your device, press and hold the power button until the screen turns on.
To power off your device, press and hold the power button, and then touch .
To restart your device, press and hold the power button, and then touch .
Press and hold the power button for 10 or more seconds to forcibly restart your device.

HUAWEI STK-L21 Smartphone - restart

1	Volume button	2	Type-C port
3	Headset jack	4	Power button /Fingerprint sensor
5	Card slot	6	Pop-up front camera

Check out the pre-installed Tips app and master all the great features on your device.

Getting Started

Do not use cut or modified SIM or microSD cards with your device as these may not be recognized and could damage the card tray (slot).
Ensure that the card is correctly aligned and that the card tray is level when you insert it into your device.
Be careful not to scratch your device or hurt yourself when using the eject pin.
Store the eject pin out of the reach of children to prevent accidental swallowing or injury.
Do not insert or remove the SIM card when your device is powered on.
If your SIM card does not match your device, please contact your carrier.

Follow the instructions in the following figures to set up your device. Please use the eject pin included.
Single-SIM: HUAWEI STK-L21 Smartphone - Single-SIM Dual- SIM: HUAWEI STK-L21 Smartphone - Dual-SIM

Dual SIM Card Management

(dual-SIM devices only)
Your device supports dual card dual standby. Under Settings > Wireless & networks > Dual SIM settings, select the default mobile data card and calling card as needed.

4G service depends on the support of your network carrier and its deployment of relevant services. Please contact your carrier to activate 4G service.
4G service may be unavailable in certain areas due to network interference.
If this guide is inconsistent with the description on the official website, the latter prevails.

For More Information

If you encounter any problems while using your device, you can obtain help from the following resources:

Visit http://consumer.huawei.com/en to view device information, frequently asked questions and other information.
Visit http://consumer.huawei.com/en/support for the most up-to-date contact information for your country or region.

Go to Settings and touch System > About phone > Legal to view legal information for your product.
Go to Settings and touch System > About phone > Legal > Safety information to view safety information for your product.
Go to Settings and touch System > About phone > Authentication info to view regulatory information for your product.
Go to Settings and touch System > Certification logos to view more information on certification logos for your product.
All pictures and illustrations in this guide, including but not limited to the device color, size, and display content, are for your reference only. The actual device may vary. Nothing in this guide constitutes a warranty of any kind, express or implied.

Safety Information

Please read all of the safety information carefully before using your device to ensure its safe and proper operation and to learn how to dispose of your device properly.
Operation and safety

To prevent possible hearing damage, do not listen at high volume levels for long periods.
Using an unapproved or incompatible power adapter, charger, or battery may damage your device, shorten its lifespan, or cause a fire, explosion, or other hazards.
Ideal operating temperatures are 0 °C to 35 °C. Ideal storage temperatures are -20 °C to +45 °C.
Pacemaker manufacturers recommend that a minimum distance of 15 cm be maintained between a device and a pacemaker to prevent potential interference with the pacemaker. If using a pacemaker, hold the device on the side opposite the pacemaker and do not carry the device in your front pocket.
Keep the device and the battery away from excessive heat and direct sunlight. Do not place them on or in heating devices, such as microwave ovens, stoves, or radiators.
Observe local laws and regulations while using the device. To reduce the risk of accidents, do not use your wireless device while driving.
While flying in an aircraft or immediately before boarding, only use your device according to instructions provided. Use of a wireless device in an aircraft may disrupt wireless networks, present a hazard to aircraft operation, or be illegal.
To prevent damage to your device’s parts or internal circuits, do not use it in dusty, smoky, damp, or dirty environments or near magnetic fields.
When charging the device, make sure the power adapter is plugged into a socket near the devices and is easily accessible.
Unplug the charger from electrical outlets and the device when not in use.
Do not use, store or transport the device where flammables or explosives are stored (in a gas station, oil depot, or chemical plant, for example). Using your device in these environments increases the risk of explosion or fire.
Dispose of this device, the battery, and accessories according to local regulations. They should not be disposed of in normal household waste. Improper battery use may lead to fire, explosion, or other hazards.
This device contains a built-in battery. Do not attempt to replace the battery by yourself. Otherwise, the device may not run properly or it may damage the battery. For your personal safety and to ensure that your device runs properly, you are strongly advised to contact a Huawei authorized service center for a replacement.

Disposal and recycling information

The crossed-out wheeled-bin symbol on your product, battery, literature or packaging reminds you that all electronic products and batteries must be taken to separate waste collection points at the end of their working lives; they must not be disposed of in the normal waste stream with household garbage. It is the responsibility of the user to dispose of the equipment using a designated collection point or service for separate recycling of waste electrical and electronic equipment (WEEE) and batteries according to local laws.
Proper collection and recycling of your equipment helps ensure electrical and electronic equipment (EEE) waste is recycled in a manner that conserves valuable materials and protects human health and the environment, improper handling, accidental breakage, damage, and/or improper recycling at the end of its life may be harmful for health and environment. For more information about where and how to drop off your EEE waste, please contact your local authorities, retailer or household waste disposal service or visit the website http://consumer.huawei.com/en/.
Reduction of hazardous substances
This device and its electrical accessories are compliant with local applicable rules on the restriction of the use of certain hazardous substances in electrical and electronic equipment, such as EU REACH, RoHS and Batteries (where included) regulations. For declarations of conformity about REACH and RoHS, please visit our web site http://consumer.huawei.com/certification.

EU regulatory conformance

Body worn operation
The device complies with RF specifications when used near your ear or at a distance of 0.50 cm from your body.
Ensure that the device accessories, such as a device case and device holster, are not composed of metal components. Keep the device away from your body to meet the distance requirement.
The highest SAR value reported for this device type when tested at the ear is

STK-L21	0.92 W/kg
STK-L22	0.99 W/kg
STK-LX3	0.81 W/kg

And when properly worn on the body is

STK-L21	0.98 W/kg
STK-L22	0.99 W/kg
STK-LX3	0.98 W/kg

Statement
Hereby, Huawei Technologies Co., Ltd. declares that this device STK-L21 / STK-L22 / STK-LX3 is in compliance with the essential requirements and other relevant provisions of Directive 2014/53/EU.
The most recent and valid version of the DoC (Declaration of Conformity) can be viewed at http://consumer.huawei.com/certification.
This device may be operated in all member states of the EU.
Observe national and local regulations where the device is used.
This device may be restricted for use, depending on the local network.
Restrictions in the 2.4 GHz band:
Norway: This subsection does not apply for the geographical area within a radius of 20 km from the centre of Ny-Ålesund.

Frequency Bands and Power

(a) Frequency bands in which the radio equipment operates: Some bands may not be available in all countries or all areas. Please contact the local carrier for more details.
(b) Maximum radio-frequency power transmitted in the frequency bands in which the radio equipment operates:
The maximum power for all bands is less than the highest limit value specified in the related Harmonized Standard. The frequency bands and transmitting power (radiated and/or conducted) nominal limits applicable to this radio equipment are as follows:

STK-L21| GSM900: 35 dBm, GSM1800: 32 dBm, WCDMA900/2100: 25.7 dBm, LTE Band 1/3/7/8/20: 25.7 dBm, Wi-Fi 2.4G: 20 dBm, Bluetooth: 20 dBm
---|---
STK-L22| GSM900: 35 dBm, GSM1800: 32 dBm, WCDMA900/2100: 25.7 dBm, LTE Band 1/3/7/8/28/38/40: 25.7 dBm, Wi-Fi 2.4G: 20 dBm, Bluetooth: 20 dBm
STK-LX3| GSM900: 35 dBm, GSM1800: 32 dBm, WCDMA900/2100: 25.7 dBm, LTE Band 1/3/7/8/28: 25.7 dBm, Wi-Fi 2.4G: 20 dBm, Bluetooth: 20 dBm

Accessories and Software Information

Some accessories are optional in certain countries or regions. Optional accessories can be purchased from a licensed vendor as required. The following accessories are recommended:
Adapters: HW-050200X02 (X represents the different plug types used, which can be either C, U, J, E, B, A, I, R, Z or K, depending on your region)
Batteries: HB446486ECW
Earphones: 1293-3283-3.5mm-322, MEND1532B528A02, EPAB542-2WH05-DH
The product software version is STK-L21:
9.1.0.260(C900E260R1P1) / STK-L22:
9.1.0.263(C900E263R1P1) / STK-LX3:
9.1.0.263(C900E263R1P1). Software updates will be released by the manufacturer to fix bugs or enhance functions after the product has been released. All software versions released by the manufacturer have been verified and are still compliant with the related rules.

All RF parameters (for example, frequency range and output power) are not accessible to the user, and cannot be changed by the user.
For the most recent information about accessories and software, please see the DoC (Declaration of Conformity) at http://consumer.huawei.com/certification.

Legal Notice

Trademarks and Permissions

are trademarks or registered trademarks of Huawei Technologies Co., Ltd. Android is a trademark of Google LLC.LTE is a trademark of ETSI. , and , The Bluetooth ® word mark and logos are registered trademarks owned by Bluetooth SIG, Inc. and any use of such marks by Huawei Technologies Co., Ltd. is under license.
Wi-Fi® , the Wi-Fi CERTIFIED logo, and the Wi-Fi logo are trademarks of Wi-Fi Alliance.
Privacy Policy
To better understand how we protect your personal information, please see the privacy policy at http://consumer.huawei.com/privacy-policy.
Copyright © Huawei Technologies Co., Ltd.
2019. All rights reserved.
THIS DOCUMENT IS FOR INFORMATION PURPOSE ONLY, AND DOES NOT CONSTITUTE ANY KIND OF WARRANTIES.

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