Flysky FRM303 Mod for TX16S
The modification is quite simple, similar to Access MOD but no need the inverter.
Just need to reconnect the AUX1 output to PPM and Heartbeat pin directly. The following image shows how this can be done, I used connection plugs so that I can easily convert back to original circuit.
For settings, you need to setup AUX1 for External Module and then select Flysky in model settings, then everything done. Enjoy.
