How to check firmware installed in RC, not in aircraft?

The DJI GO app should alert you when there is a new firmware version available for the remote controller.

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Phantom Help Posted at 2015-8-17 04:55
The DJI GO app should alert you when there is a new firmware version available for the remote contro ...

yes, thank you. but do you know if there is a way to know what version of the firmware is installed in the remote ?

the firmware matches the aircraft and remote together. in some cases, you also have to go through each battery and upgrade them... that means running the firmware upgrade on the device as many times for as many batteries.