I had little crash with my mobula 8, flew into tree and dropped on grass. After that when I arm and push throttle, drone motors spinning up to 100% and it flies away, after few sec it's flying normal and another few sec it giving 100% motor power again. I haven't changed any betaflight and esc settings, before crash mobula was flying normal. What could go wrong? Just checked motors in btfl, they are running normal, gyro works good too. Aio broken? ESC short circuit?

You may have damaged the ESCs, but in the first instance I would take it apart and use a magnifying glass over the board to check for anything that might be causing a short circuit somewhere (i.e. debris or a loose wire), and to check that there are no obviously missing components that might have got knocked off the board (i.e. solder pads which look like they should have a component across them).

I just turned off airmode and everything works again, mobula is flying like before. I don't know what happened, before crash airmode was on and it flew good.

Excess vibrations can cause a flyaway with Air Mode switched on. Check that all the FC mounts are tight (not broken), the motor screws are all tight, and that the frame isn't broken or cracked somewhere.

If all of that looks OK and everything was working before the crash then the gyro has probably sustained some damage in the crash.

Frame cracked under duct, this 4-arm bucket, I've soldered plastic with soldering iron, seems solid but I will order new frame. Checked all screws, everything is tight. I will leave it with airmode turned off. Maybe you have right and gyro is damaged, but in btfl gyro seems fine.

I have a similar problem, is yours OK now?

Try to turn off airmode. It flies almost normal, fast turns and dives are little shaky with airmode off. I haven't tried anything else.

mine acted similarly and it turned out to be radio ch mixer settings