How to use AT200 for BMW N20 read & write ISN and modify VIN?

Guide on how does AT200 programmer work for BMW N20 ISN reading & writing, VIN modification, internal data backup and modules replacement.

 

AT200 and the parts needed:

AT200 host

OBD connection Line

Connection Line for platform

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Purpose:

  1. Modify the VIN
  2. Read and modify the ISN
  3. Backup internal data and replace modules.

 

Method:

Via OBD (in the car)

On Bench ( if disassembly operation)

 

Procedure:

Access power and USB cable before using the device.

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Open the software initialization interface.

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Click on the BMW option.

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Click on “4 series (F32)” option.

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Click on “428i N20B20A 245” option.

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Click on “Bosch MEVD17.2.9 TC1797”.

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If operating in a car, select “OBD”; if disassembly operation, select “Bench”. What follow is a demonstration of the Bench operation.

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Click on “Wiring diagram” and connect the platform line according to the wiring diagram.

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The platform on which the wires are connected according to the wiring diagram.

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Click on “identify” and the engine is identified successfully.

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Part 1: Modify the VIN.

Click on the “Modify VIN” option, please save the data after the device operation.

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Read the original VIN, enter the required VIN, and click on “OK”.

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Successful modification of VIN.

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Click on “Read ISN” option, AT200 device operation is successful, ISN reading successfully.

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Part 2: Read and modify the ISN.

Click on “Write ISN” to save the data after the device operation.

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Read the existing ISN, enter the desired ISN, and click on “OK”.

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Write ISN successfully.

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Part 3: Backup internal data and replace modules.

Backup internal data, read and save DFLASH and PFLASH.

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Module replacement requires both DFLASH and PFLASH to be written.

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Done.

 

Thanks to BMW AT200 programmer for what it can do.

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