Problem:
I’m working on a 2013 bmw x1 with Autel IM508.
A locksmith attempted all keys lost and bricked the CAS3 ista version.
Locksmith says it required downgrade, it failed during that process.
There’s no original eeprom or flash data.
The locksmith failed to read the CAS files and save them.
How to repair the cas3 module?
Solution:
If you downgrade by OBD, it fails to reflash it properly.
If it bricked during obd update, you should be able to recover it with bench read data.
Bench read flash and eeprom, run repair on files, write new files to CAS on bench and reinstall to car, if it’s all keys lost read isn from dme/dde, make key from files you’ve already got and you’re done.
You need to make sure you get a clean read from original case.
I damaged the board on original cas, got a read on bench, repaired the files and put them on new/used cas and all worked perfectly afterwards.
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