SIEMENS AT200 MSV80 Read Write ISN and Backup Data User Guide
- June 12, 2024
- SIEMENS
Table of Contents
AT200 MSV80 Read Write ISN and Backup Data
User Guide
AT200 MSV80 read/ write ISN and back up
data
Connection
1.1 Check the ecu version first1.2 Open software and find the correct
option(choose MSV80 here) 1. 3 When the wires
of the adapter is connected only according to the first wiring diagram, only
the ISN can be read. At this time, other functions such as writing ISN will
fail.
1.4 In
second diagram,Need to remove ecu cover and add a 2.2K resistor, a 100NF
capacitor and a TJA1050 communication chip, and short circuit in place that
marked in diagram. The complete operation can only be carried out after the
wiring here is completed(Need to plug 12V to AT200). 
Identification ECU(Confirm whether ECU information can be recognized
normally at this time)
(There is no VIN information in our ECU. Cgdi BMW can be used to program ECU
and modify VIN information） 
Read ISN
Click “Read ISN”button to read ISN(Please note: this operation need to be
connected internet.)
Write ISN
4.1 Click”Write ISN”button, it will start to read and need to save it(saved in at200 folder by default). 
4.2 After saving successfully, a pop-up window will pop up to
modify the ISN. Modify the ISN needed ,click OK and will start to write the
ISN information. 
4.3 Read ISN again to check if write success. 
Backup data
5.1 Click”Backup data”button to read data and save it(Please note: this
operation need to be connected internet.) 
5.2
Software will ask to save the data after backup success(saved in at200 folder
by default).
Restore data
6.1 Click”Restore data”button to write ECU data,before writing, make sure that
the data has been backed up. The recovered data will cover the data of the
current ECU. The data can be the data of current ECU or other ECU of the same
type.
Note: in the process of data recovery, it is strictly forbidden to disconnect
the power supply or the connection of the device, otherwise the ECU may be
damaged; if the software is shut down or the computer is shut down or crashes
unexpectedly in the process of data recovery, please do not disconnect the
power supply or the connection of the device, and keep it for 15 minutes, the
device can complete the data recovery independently.
Website: www.cgsulit.com/
Youtube video:
AT200 – BMW MSV80 Engine Computer Read and Write ISN and Module Cloning.
https://www.youtube.com/watch?v=-xvshuuGMXY&feature=youtu.be