P3 Firmware DJI P3P Remote GL300B at 1.9.2, how to downgrade firmware to 1.5.7

[mtnd3w88]

Hello..
I had to replace my P3P Remote and it has the 1.9.2 firmware on it. I tried downgrading with the app but it continually fails. Is it possible to just downgrade RC ? I would like to downgrade it to 1.5.7 . My P3P AC has firmware 1.5.30 and would like to keep it that way.

 

[crash1sttime]

Hello..
I had to replace my P3P Remote and it has the 1.9.2 firmware on it. I tried downgrading with the app but it continually fails. Is it possible to just downgrade RC ? I would like to downgrade it to 1.5.7 . My P3P AC has firmware 1.5.30 and would like to keep it that way.

get the firmware and put it on a USB stick and plug that into the controller, it will then downgrade, or should

you