If you start the update process and the shows “Getting the current firmware version of dongle and mouse, it will take a while” for more than 1 minute, please try following steps to resolve it.
Make sure the MM311 is Connected Successfully. Please make sure the bottom switch of the MM311 had been turned on and the MM311 is connected to the 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.