A collection of software modifications for the FlySky i6, some useful, some experiment. All use of this repository is experimental and you use at your own risk. But, progress is being made.
@NightFlye I had same issue, debugging shows the reason, bad quality gimbal!
When you move it hard from top to bottom it gets correct values for while. I verified it with ADC Raw values.
Try pushing the left stick all the way up instead either just after initial power up or prior to power up it has worked for me