BMW ISN — DME/DDE ↔ EWS/CAS Synchronization with OBD/COM Read-Write

BMW ISN DME/DDE - EWS/CAS ECU EEPROM IMMO Service OBD Tool 0.12.04.16

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BMW ISN — DME/DDE ↔ EWS/CAS Synchronization with OBD/COM Read-Write
BMW ISN DME/DDE - EWS/CAS ECU EEPROM IMMO Service OBD Tool 0.12.04.16
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New release thread for BMW ISN — DME/DDE ↔ EWS/CAS Synchronization with OBD/COM Read-Write: discuss, share feedback, and get help.

BMW ISN — DME/DDE ↔ EWS/CAS Synchronization with OBD/COM Read-Write Bin

BMW ISN — DME/DDE ↔ EWS/CAS Synchronization with OBD/COM Read-Write

Multi-brand ISN utility with OBD/COM read-write, DME→CAS sync, VIN/ESN edit, byte-swap options.

BMW ISN — DME/DDE ↔ EWS/CAS Synchronization with OBD/COM Read-Write​

Multi-brand ISN utility with OBD/COM read-write, DME→CAS sync, VIN/ESN edit, byte-swap options.

ISN ver 0.12.04.16 is a compact Windows tool for authorized immobilizer work on BMW, Mini and Rover.
It reads identifiers from DME/DDE and EWS/CAS, lets you synchronize ISN (DME→CAS), adjust VIN/ESN in
supported modules, and—when available—communicates over COM/OBD for direct Read/Write. 🔐

View attachment 765

Core features
  • ...
Click to expand...

Frequently Asked Questions​

Which Windows version is recommended?
For maximum stability during ECU flashing and diagnostics, a clean installation of Windows 10 (64-bit) is recommended.
Is it compatible with J2534 PassThru?
Most modern software versions support standard J2534 interfaces like Scanmatik 2 Pro, OpenPort 2.0, and specific VCI adapters.

What's inside:
  • Overview & screenshots
  • Version history and compatibility
  • Download link and setup notes

👉 View full details and download — BMW ISN — DME/DDE ↔ EWS/CAS Synchronization with OBD/COM Read-Write
 
leandro said:
thansk a lot
Click to expand...

You're welcome!

Just a quick tip when using this tool: if you are doing DME ↔ CAS synchronization, always pay close attention to the ISN format. Sometimes the read dump is in Little Endian while the editor expects Big Endian (or vice versa).

If the synchronization fails or the car cranks but doesn't start, try using the Byte Swap option mentioned in the description.

  • Always use a stable power supply (13.5V+) during OBD read/write operations.
  • Make a full backup of the CAS EEPROM before attempting to write a new ISN.

Let us know which specific DDE or DME versions you test successfully with this.
 

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