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Just as an FYI for people attempting this retrofit.
I have a 10/10 build date X5M that already had an FRM3 (original configuration was adaptive xenon headlights and LCI tails). I performed the headlight retrofit and everything worked with the exception of the high beams. The servos would move the beam pattern up when the high beams were activated but the actual high beam lights would not turn on. Also, I would get the "high beam malfunction" error message on the CIC.
It turns out that not all FRM3 modules are created equal. I purchased the latest revision of the FRM3 new for the E70 and replaced it and after re-coding all light functions work perfectly. I am not sure which version of the FRM3 began fully supporting the LED headlights, but I leave this here as a note for someone else who might run into the same issue. Just because you already have LCI taillights doesn't mean the car is capable of controlling LED headlights.
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