+- CarTechnoloGY (https://cartechnology.co.uk)
+-- Forum: Discussions All about Software and Hardware (https://cartechnology.co.uk/forumdisplay.php?fid=310)
+--- Forum: Automotive Help & Discussions / Software and Hardware (https://cartechnology.co.uk/forumdisplay.php?fid=40)
+---- Forum: BMW - Mini - Rolls Royce (https://cartechnology.co.uk/forumdisplay.php?fid=61)
+---- Thread: Corrupted EEPROM 95256 BMW F15 BDC (both chips) (/showthread.php?tid=122937)
Corrupted EEPROM 95256 BMW F15 BDC (both chips) - Marianberes - 16-09-2026
Hello everyone,
Can anyone help me with an F15 BDC ?
Someone tried to add a key to it through OBD with AUTEL,
most likely without a power supply connected.
The voltage dropped during the
write, the procedure failed halfway through, and the key never got programmed. Since then the module is stuck in a reset loop - you can hear a relay clicking about every 1-2 seconds, over and over, as long as it's powered.
I'm looking for a pair of EEPROM dumps from a BMW F15 BDC.
I need BOTH chips, not just the key one. The BDC has two EEPROMs, marked 95256WP and 95256RT.
Almost everyone reads only the WP (the key one) - I also need the RT, which
has completely different content and is not a copy of the first one.
The RT is the one holding the module identity: the VIN sits in it in plain text.
It's a test BDC, so nothing has to match - VIN or ISN are irrelevant to me. All I want is to get BDC_BODY talking again.
Current state: I can connect in ё_5у5, but BDC_BODY doesn't show up in the tree, only BDC_GW. Ignition won't come on.
When I write the key EEPROM and read it back right away, it's identical - the eeprom reading is perfect.
But as soon as I power the BDC on,it corrupts itself within seconds, and I believe the reset loop is what's doing it.
Same result with other original EEPROMs too.
I also tried writing the WP content into the RT chip: the VIN changes and after that I can't even connect anymore.
Attached, what I have so far M95256_WP and M95256_RT
BDC details:
- Original VIN: WBAKS810900S48874 (X5 F15)2016
- 6808576-02
- BDC-LR01 V20 (Lear)
- HW: D4.2
- SW: 005.042.050
Thanks!