Frm-reset-bmw -

: Use a battery charger (stable power supply) when coding the FRM.

If the module is still communicating but certain lights won't work, it may have a that has reached its limit (usually 50 cycles). frm-reset-bmw

If the module is "dead" (no communication), the internal memory (EEPROM) is likely corrupted. This happens frequently on modules. Option A: Professional Repair (Recommended) : Use a battery charger (stable power supply)