There are cases that are almost documented - e.g. BSI computer in Peżota. Until some time I did not believe it until I found the FF in the eeprom, probably 307. The memory almost erased before my eyes during the replacement of the battery for new - I emphasize because it could have been significant. All settings (ie car configuration) simply "checked" and I had to re-load VIN, PIN code, settings, keys ... Read about it BSI is already writing books. Interestingly, after uploading the settings, the machine works without any reservations.
ps
The previous battery was scrap - maybe there is something in it?
ps
The previous battery was scrap - maybe there is something in it?
