Leave page quickly
You will be taken to the Google website - this is in case you don't want someone to see you on this website
Do not disconnect the cable or shut down your computer during this process.
If you experience issues with the mobile app, you can update the controller using a Windows PC. Step 1: Download the PC Tool Visit the official GameSir support website. Navigate to the downloads section for the T4 Pro. Download the firmware upgrade tool executable file. Step 2: Connect via USB Turn off your T4 Pro controller. Gamesir T4 Pro Update Firmware
The software should automatically detect your connected T4 Pro. Click the or Upgrade button. Do not disconnect the cable or shut down
: Use a reliable internet connection on your phone or PC. Navigate to the downloads section for the T4 Pro
This is the standard method. Follow these steps precisely . Do not skip the button combination.
Visit the official GameSir T4 Pro Tutorial page and download the latest .exe firmware update file (the latest major update was V1.45 ). Enter Update Mode: Ensure the controller is powered off .
Nintendo frequently patches the Switch OS. An outdated T4 Pro might stop working after a Switch system update. GameSir releases firmware to re-authenticate the controller with Nintendo’s latest encryption.