The tool will display "Success." Close the tool. Unplug the controller. Power it on normally (Hold Home). Your T4 Pro is now updated.
Download and install the app from the GameSir Official Website .
Press (Android) or Home + B (iOS) to put the controller in pairing mode. Connect via your phone's Bluetooth settings. Check for Updates : Open the GameSir app and select your from the device list. Tap on Firmware Upgrade .