This is where most users get stuck. You cannot update the T4 Pro while it is in standard X-Input or Switch mode.
Keeping your GameSir T4 Pro controller updated is essential for fixing connectivity bugs, improving joystick deadzones, and ensuring compatibility with the latest games on Windows, Android, and Nintendo Switch.
GameSir offers the "GameSir World" app (formerly "GameSir Connect") on the Google Play Store and Apple App Store. While convenient, mobile updates are riskier due to Bluetooth interference.
Steps:
Why I don't recommend this: If your phone switches apps or loses connection for half a second, the update fails. You then have to go back to Method 1 anyway. Use the mobile method only if you do not own a PC.
The T4 Pro uses Bluetooth 5.0, but early firmware had well-documented disconnection issues, specifically with Apple Arcade and Android 12+. A firmware update stabilizes the handshake protocol, reducing latency from 12ms to roughly 8ms in wireless mode.
Before diving into the update process, it's essential to understand why you should keep your Gamesir T4 Pro firmware up to date. Firmware updates often bring: Gamesir T4 Pro Update Firmware
Before we get into the nuts and bolts, let’s look at the tangible benefits. You might be thinking, “If it ain’t broke, don’t fix it.” With the T4 Pro, that logic is flawed.
(Note: Features vary depending on the specific version released.)
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To keep your GameSir T4 Pro running smoothly, updating the firmware is essential for fixing bugs like gyroscope delay or unexpected shutdowns.
As of April 2026, there are two primary ways to update your controller: using a PC for a forced manual update or using the GameSir mobile app for a quick wireless check. Method 1: Manual Update via PC (Recommended)
This is the most reliable way to fix hardware-specific issues like the "Gyroscope Delay". This is where most users get stuck
Download the Firmware: Visit the GameSir T4 Pro Tutorial page to download the latest .exe firmware update file (currently V1.45 or later). Enter Update Mode: Turn off the controller.
Press and hold the L3 button (press down the left joystick).
While holding L3, connect the controller to your PC using a USB-C cable.
Run the Updater: Open the downloaded .exe file. If the device is recognized, click the Update Firmware button.
Finish & Calibrate: Once the bar reaches 100%, the right joystick backlight will turn blue to signal completion. You may need to press M2 to trigger the final sequence. Method 2: Update via Mobile App (Wireless)
The official GameSir App (which merged GameSir World and G-Crux) allows for quick wireless updates on Android and iOS. Why I don't recommend this: If your phone
Get the App: Download the GameSir App from the Google Play Store or Apple App Store. Pair Your Controller: Android: Press A + Home. iOS: Press B + Home.
Check for Updates: Open the app, go to the Devices section, and select your connected T4 Pro. Tap Firmware Upgrade and follow the prompts. Troubleshooting Tips
Dongle Update: If you use the 2.4GHz receiver, you can also update its firmware separately. Exit the GameSir software, hold the pairing button on the dongle for 5 seconds while plugging it into the PC, and run the dongle updater.
Device Not Found: Ensure you are using a data-transfer capable USB cable, not just a charging cable.
Calibration: If the sticks feel off after an update, use the GameSir Nexus Software on PC to recalibrate deadzones and lighting. Tutorial: How to use GameSir T4 Pro
Here’s a concise step-by-step guide to update the firmware on a GameSir T4 Pro controller.