Posted in AT200 BMW

How to read and write N55 ISN by BMW AT200 No Need Opening?

   December 2, 2019

This article mainly talks about the guide to use BMW AT200 to read and write N55 ISN without opening the DME shell.

 

Preparation:

BMW AT200 ECU programmer & ISN OBD cable

N55 DME

bmw-at200-read-write-n55-isn-1

 

Procedure:

Open AT200 software

Select the corresponding car brand, model, Engine-EGS and ECU type

Click “BENCH” to enter operation page

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Select “Wiring diagram”

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Then connect N55 DME and AT200 via profession ISN OBD cable

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Click “Identification” to detect chip, SN, hardware ID and Flash info

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Select “Read ISN”

Read ISN successfully

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Select “Write ISN”

Save DFLASH data read out

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Input a new ISN which is different from the old one

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Write ISN successfully

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Click “Read ISN” again

The ISN read out is same as the new one

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Save new DFLASH data

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Select “Read PFLASH”

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Save PFLASH data

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Backup data successfully

bmw-at200-read-write-n55-isn-14

 

For your information, BMW AT200 has been updated to V1.6.1:

http://www.cgdishop.com/wholesale/bmw-at-200-programmer.html

 

That’s all!

Related posts:

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  2. BMW N20 ISN Read and Write: CGDI BMW or AT200?
  3. BMW AT200 Read and Write N13/N20/N55 ISN No Need Opening
  4. CGDI prog BMW Read/Write N13/N20/N55 ISN without opening DME

Author: admin