Exactly what the title says. I actually just saw a post on another forum that I am active on and someone had this problem too. I still have the board (betafpv 12a aio v2.1). I just wanted to know if any of you big brains know what is wrong with it. If you can figure it out I would be stoked.

Thank you for your time.

Can you describe the problem a little better? Is this happening with props on? Hs it always done this or is it a new issue? DVR or blackbox logs would be a plus if you have them.

Props on and i dont have dvr or blackbox logs the fc doesnt even have black box.

Here is what is going on:

You arm the quad and it acts like normal. Then once you push throttle past 20-25% the quad goes to 100% throttle and no stick inputs do anything. Once you disarm it goes right back to normal until you push past that throttle point. I think the first time I had the issue was after a crash. Maybe the quad got screwed up somehow.

This sounds like a flyaway.

I suggest you do the following:-

1. Check that all of the screws holing your frame together and the ones for the arms haven't come loose and are nice and tight.
   
2. Check that the screws for your motors are all properly tightened.
   
3. Check that the stack it still securely mounted and that the FC isn't flapping about.
   
4. Check that no wires or anything else is touching the gyro chip on the FC because that can transfer undesired vibrations to the gyro.
   

If all of the above looks to be OK then go to the Setup tab in Betaflight configurator and observer the image of the quad on-screen as you move it about with your hand to see if it acts the same way. Then go to the Sensors tab and look to see of the gyro graph remains as a flat line with the quad just sitting still on the table, and that the graph line looks to be moving consistently if you pick up the quad and tilt it in each of the 4 roll and pitch axis.

and when you checked the mechanics and it still does this, apply betaflight defaults for filters and pids. Maybe even go to 0.8 on filters and reduce PIDs by 20% and try again.
If it goes away you got a noisy or faulty build or the board/gyro is crap. I had an iflight FC once that was unflyable that did the same thing

For whatever reason turning off antigravity mode fixed it. Anyone know why? I dont even know what antigravity mode does, thats one of those things I leave alone.

(01-Mar-2022, 05:35 PM)Mr_Stripes Wrote: For whatever reason turning off antigravity mode fixed it. Anyone know why? I dont even know what antigravity mode does, thats one of those things I leave alone.

Nope. There must be some other underlying problem if things only work with the Anti Gravity feature switched off. I've never switched off Anti Gravity PID Controller settings (I just leave them enabled and on the default mode/gain settings) and I've never had any issues on any of my quads with that.

(01-Mar-2022, 05:49 PM)SnowLeopardFPV Wrote: Nope. There must be some other underlying problem if things only work with the Anti Gravity feature switched off. I've never switched off Anti Gravity PID Controller settings (I just leave them enabled and on the default mode/gain settings) and I've never had any issues on any of my quads with that.

Oscar Liang on anti gravity mode "Anti-Gravity is not a flight mode, but a feature. It reduces the “dips” (sudden pitch-down) when you changing throttle rapidly. To do that it basically raises I gain momentarily when throttle is changing a lot, and so I gain will stay the same for the rest of the flight."

I wonder of turning off air mode will fix it. But then it shouldnt do it in stability either, right? Ah well I'm not too worried about it, the fc aio is going into a beta95x cinewhoop that wont be doing a lot of crazy throttle stuff anyways. 

(20-Feb-2022, 09:55 AM)SnowLeopardFPV Wrote: This sounds like a flyaway.

I suggest you do the following:-

1. Check that all of the screws holing your frame together and the ones for the arms haven't come loose and are nice and tight.
   
2. Check that the screws for your motors are all properly tightened.
   
3. Check that the stack it still securely mounted and that the FC isn't flapping about.
   
4. Check that no wires or anything else is touching the gyro chip on the FC because that can transfer undesired vibrations to the gyro.
   

If all of the above looks to be OK then go to the Setup tab in Betaflight configurator and observer the image of the quad on-screen as you move it about with your hand to see if it acts the same way. Then go to the Sensors tab and look to see of the gyro graph remains as a flat line with the quad just sitting still on the table, and that the graph line looks to be moving consistently if you pick up the quad and tilt it in each of the 4 roll and pitch axis.

I just created an account to say thankyou. I found a missing screw and a loose screw. This was enough to cause vibration and create this issue!

(09-Oct-2023, 08:33 AM)antonmusalov Wrote: I just created an account to say thankyou. I found a missing screw and a loose screw. This was enough to cause vibration and create this issue!

No problem. I'm glad you managed to find the root cause of your issue. The gyro on the flight controllers we use in out quads are that sensitive that any cracked frame parts (even hairline cracks) or loose bolts can have a massive negative impact on flight control and performance.