Gamesir T4 Pro Update Firmware Best -

Note: Older versions of the app may not show the T4 Pro. Ensure you have v3.x or newer.

Once finished, unplug the controller. Turn it back on. If the lights illuminate normally and it connects to your device, the update was successful.

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Completion: The tool will say "Success." The controller will vibrate twice.

Hard Reset: Unplug the cable. Hold the Reset button (pinhole near LB button) for 5 seconds. Then re-pair your devices.