Noise reduction off too,,its just a classic over exposure picture that why I mentioned,,I dont think its firmware or other issues be going on to,are you on new firmware, remember that's optional to you unless forced into it,,Joy's of wifi,,have you tryed simple reinstall of app ,sometimes that will bring things right(sometimes),,I had p34k,it was ok but had to mod remote just to improve it,,it now resides in Glasgow with new owner so trying to replicate in my head your issue,some ribbons can go bad just like that but without having spare to try it's a guess,good to have spares but dont want to metion buying stuff when it might not be needed ,try imu calibration aswell