I’ts been a while but I recall the following:

  • Lexel/HQ Prog Key key are compatible or get 6 hands and hold pins in place one time with any DIY method.
  • It’s the usual ATtiny85 MCU
  • I think you need to use the setup file for the PL47 version 1, TK always said FF just re-used PL47 firmware for all their lights during this time period so there was never a true custom one made?
  • If you do go forward with it I believe you have to disconnect the aux board temporarily