If you start the update process and the shows “Getting the current firmware version of dongle and MM712, it will take a while” for more than 1 minute, please try following steps to resolve it.
Make sure the MM712 is connected successfully in 2.4 GHz mode. Please make sure the bottom switch of the MM712 had been toggled to 2.4 GHz mode and the MM712 is connected to dongle successfully.
Unplug and re-plug in the Dongle to the USB port. This step may resolve the issue.
If it doesn’t, please contact [email protected] for more help.