Firmware download link(Support both version of ELRSF4 2G4) :
betaflight_4.3.0_CRAZYBEEF4SX1280_norevision ICM20689
betaflight_4.3.0_CRAZYBEEF4SX1280_Official_Release
ELRSV2.LUA download link:
ELRSV2 instruction and download
Default diff documents download link:
For Mobula6 ELRS 2.4GHZ v2.0 version which comes with ELRSF4 2G4 V3.3 Flight controller
For Mobula6 ELRS 2.4GHZ v2.0 version which comes with ELRSF4 2G4 V3.1 Flight controller
For Crux3 1S ELRS v2.0 version which comes with ELRSF4 2G4 V3.1 Flight controller