Pair your controller to your smartphone via Bluetooth.
, you can use either a dedicated PC tool for specific bug fixes or the official mobile app for standard updates. Method 1: Using the PC Update Tool (Recommended for Fixes) Gamesir T4 Pro Update Firmware
If the update fails or the controller becomes unresponsive, use a pin to press the Reset button (found in a small hole on the back of the controller) for 5 seconds while it's powered on. Pair your controller to your smartphone via Bluetooth