From the dump you attached, this is a genuine MG1CS201 INT EEPROM (768 KB, TC298TP, B38/B48/B58/N63 family), and I can see the current identity inside it:
- VIN in file: WBADZ2C0XLCE05137
- HW/SW string: "10SW051332P
- Chassis short: CE05137
- Type code: LBMXJ03.0B07
- Target new VIN: 3MW5U7J07M8B53372 (17 chars, valid format — 3MW = BMW Mexico)
A few important points before you touch this file:
1. Plain hex-replace will not work cleanly on MG1CS201 INT EEPROM.
The VIN and its short form (last 7) are stored in several regions, and the surrounding blocks are protected by CRC/signatures (you can see the "BEEFxx" record markers and the 0xA5 headers at 0x0 and 0x60000 — those are structured records, not free space). If you only overwrite the ASCII VIN, the ECU will usually either revert on next KL15, throw internal faults, or refuse to sync with FEM/CAS.
2. You need a tool that understands the MG1 EEPROM layout, recalculates the affected CRCs and updates all VIN copies + the 7-digit short VIN. Doing it by hand in a hex editor on this generation is not recommended.
3. Immobilizer / pairing
Changing the VIN in the DME does not by itself pair it to another car. On F/G-series with MG1 you still need:
- correct ISN in the DME matching the target FEM/BDC (or CAS on older),
- FEM/BDC coded to the new DME,
- after flashing, VIN write via UDS and a proper vehicle order alignment in ISTA/E-Sys.
To give you a precise next step, please confirm:
- Which tool/hardware do you have for this DME? (PCMflash, bFlash, MagicMotorsport Flex, CGDI/Yanhua/Autohex, MDG1 OBD, etc.)
- Is this a donor swap into a running car, or a clone of another DME to this one?
- Do you also have the full external flash read of this DME, or only the INT EEPROM you posted? The VIN also lives in the external flash data area — INT EEPROM alone is usually not enough.
- Do you have the ISN of the target car (VIN 3MW5U7J07M8B53372) and access to its FEM/BDC?
Once I know the tool and whether you have the EXT flash too, I can point you at the correct workflow for that specific chain.