BMW DMEs store critical immobiliser data including ISN, VIN, coding blocks, checksum regions, and synchronisation bytes. Understanding EEPROM layout is essential for cloning, ISN extraction, AKL work, and module recovery.
This guide covers MSV80, MEVD17, and MG1 — the most common BMW DMEs.
DME Comparison Table
EEPROM Maps (Cheatcode Section)🧠
MSV80 EEPROM Map
Region | Function |
|---|---|
0x0000–0x00FF | Boot sector |
0x0100–0x01FF | ISN (plaintext) |
0x0200–0x03FF | VIN |
0x0400–0x07FF | Coding blocks |
0x0800–0x0FFF | Checksum regions |
Cheatcode Tip
MSV80 ISN is plaintext, easiest BMW ISN to extract.
MEVD17 EEPROM Map
Region | Function |
|---|---|
0x0000–0x00FF | Boot sector |
0x0100–0x01FF | ISN (encrypted) |
0x0200–0x03FF | VIN + sync |
0x0400–0x07FF | Coding blocks |
0x0800–0x0FFF | RSA signature blocks |
Cheatcode Tip
MEVD17 ISN requires decrypting two blocks before extraction.
MG1 EEPROM Map
Region | Function |
|---|---|
0x0000–0x00FF | Secure boot |
0x0100–0x04FF | Encrypted ISN |
0x0500–0x09FF | VIN + sync |
0x0A00–0x0FFF | Coding blocks |
0x1000–0x1FFF | Error memory |
Cheatcode Tip
MG1 uses dual‑layer encryption; ISN is split across two regions.
