Have collected three newest test reports about BMW AT200 ECU programmer. Facts prove that AT-200 can read and write N13/N20/N55 ISN without dismantling successfully!
Preparation:
DME module: BMW N13, N20 and N55
Device:
BMW AT200 ECU programmer
http://www.cgdishop.com/wholesale/bmw-at-200-programmer.html
Professional OBD cable to read N13/N20/N55 ISN
http://www.cgdishop.com/wholesale/obd-cable-working-with-cgdi-bmw-to-read-isn.html
Procedure:
Step 1: Select car brand, model and Engine- EGS and ECU type
Open AT200 software
Select the corresponding car brand, model, Engine-EGS
Then it will show ECU automatically
Click “Bench” to operate interface
(Here show all the BMW DME models tested. In the real operation, you only can test the DME types one by one)
N13:
N20:
N55:
Step 2: Connect DME module to AT-200
Follow the wiring diagram in the software to connect the corresponding DME and AT200 via OBD cable
N13:
N20:
N55:
Step 3: Identification
Click “Identification” to read out DME chip, SN, hardware ID and Flash info
N13:
N20:
N55:
Step 4: Read ISN
Click “Read ISN”
Reading DFLASH…
Read out ISN code successfully
N20:
N55:
Step 5: Write ISN
Select “Write ISN”
Save DFLASH data read out
Input a new ISN which is different from the old one
Write ISN successfully
Click “Read ISN” again
The ISN read out is same as the new one
N13:
N20:
N55:
For your convenience, here is the related videos.
BMW AT200 read& write N13 ISN:
BMW AT200 read& write N20 ISN:
BMW AT200 read& write N55 ISN:
