Speedybee405mini bls 35Aesc (stack), Speedybee 1404 motor with 3 inch propeller , 4s 450mah battery.
Firmware Version:
Copter 4.5.1 Firmware.
After takeoff, the drone initially flies normally, but then starts drifting left. When I try to correct it by pushing the roll right, it doesn’t respond well. I have to fully use roll right just to make a slight change in the drift. This happen sometimes in pitch too.
If more information is needed, please feel free to ask. I appreciate your assistance in addressing this issue.
Read and follow the How to methodically tune (almost) any multicopter guide. Download the methodic configurator, edit each file in the configurator to suit your copter and write them to the FC one by one as you read along. The guide and configurator tell you what to do at any given time. Do not skip any steps! Anything that might seem like a shortcut will result in a worse tuned copter in the end, like the one you have now.