Typically you'd change them on your transmitter side. Check to make sure you're not in some weird expo mode or have the heli settings turned on in your Tx.
No expo mode. Heli settings are off. Do I change them by changing the weight in the mix, subtrim in the limits, min/max in the limits, enabling extended limits and going beyond 100%...? Sorry if this sounds trivial but I'm new to aerial rc. BTW it is a FlySky FS-TH9X radio with er9X firmware.
No idea, I'm afraid. Every RC model is different and I've never used the one you're using. You should find the answer in its manual (assuming it has one!)
The FlySky is just a rebranded Turnigy 9X. I have the er9X manual, I'm just not sure what I'm looking for.
Turns out it was a bad RX or TX module. Couldn't get them to work with servos either. I replaced the Turnigy 9x modules with FrSky ones and no problems.