downgrade the firmware

I upgraded my PS3 to FW 1.8.10 and now bird will not fly more than 100m before going RTH. I was finally able to downgrade to 1.7.9 but no further. I keep getting "The current firmware does not support downgrade. Use a different version of firmware to downgrade the target version" in log text...

Hi i have this problem just from yesterday noise in video Phantom 4 just in video in photo mode no problem , i have reset camera settings not fix it i have make IMU Not help i did defult setting not help i downgrade the firmware not help i upgrade the firmware not help enable 3d noise reduction...