: Never let your battery get extremely low.
: Open FRM_70.prg (for FRM2/FRM3) or your specific FRM file. frm-reset-bmw
The in BMWs (specifically E-series models like the E90, E70, E84) is prone to "bricking" or entering a protected mode after a battery failure, jump-start, or coding error. This guide covers how to identify and reset it. Identifying a Faulty FRM When the FRM module fails or locks, you will notice: Windows will not roll up or down. Interior lights and dash lights stay on or won't work. : Never let your battery get extremely low
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