p3a firmware upgrade downgrade install fail

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    Manual RC Firmware Downgrade not using DJI Go

    Hi all. Once again someone is stuck with bad firmware upgrades. I tried to go from RC 1.5.8 to 1.9.3 using DJI Go app (IOS 11), but installation failed. The download process was successful and after 20 seconds trying to install the app replies with a message "Install Failed. Try again". I press...