The tool will display "Success." Close the tool. Unplug the controller. Power it on normally (Hold Home). Your T4 Pro is now updated.
Use this if you use the USB dongle for low-latency gaming. Gamesir T4 Pro Update Firmware
Before you begin, ensure the following to prevent "bricking" your controller: Official firmware file for T4 Pro (download from
The GameSir T4 Pro is widely regarded as one of the best budget-to-mid-range wireless controllers on the market. Why? Because it offers a feature set that rivals the Xbox Elite controller—Hall Effect sensing joysticks (in newer revisions), programmable macros, RGB lighting, and multi-platform compatibility (Switch, PC, iOS, Android)—at a fraction of the price. The tool will display "Success
However, like any sophisticated piece of hardware, the T4 Pro runs on firmware. This low-level software dictates how the buttons respond, how stable the Bluetooth connection is, and how the gyroscope performs. If you have never updated your GameSir T4 Pro firmware, you are likely leaving performance (and battery life) on the table.
But here is the catch: Updating the T4 Pro is not as straightforward as clicking "Update" in Steam. It requires a specific tool, a particular cable, and a precise sequence of button presses.
In this 2,500+ word deep-dive, we will walk you through why you need to update, how to do it safely, how to fix “bricked” controllers, and what each new firmware version actually fixes.