Gamesir T4 | Pro Update Firmware

Gamesir T4 Pro — Firmware Update Guide & Troubleshooting

Overview

This post explains why to update your Gamesir T4 Pro firmware, how to prepare, step‑by‑step update instructions for Windows/macOS/Android, verification, common problems and fixes, rollback notes, and tips to avoid bricking your controller.

Step-by-step: Windows (recommended)

1. Download and install the official Gamesir app or Firmware Upgrade Tool.
2. Plug controller into PC with a good USB cable.
3. Put controller into update mode:

   From then on, Leo made a habit of checking the GameSir KeyLinker app once a month. He learned that firmware updates weren’t scary—they were like giving his controller a little brain boost. And his trusty T4 Pro never let him down again. Gamesir T4 Pro Update Firmware

   2. Download the Required Tools

   • GameSir PC Tool (Firmware Updater)
     Official link: https://www.gamesir.hk/download/
     → Look for “GameSir T4 Pro” → download the Windows firmware update tool.

   2. Bluetooth 5.0 Stability

   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. Gamesir T4 Pro — Firmware Update Guide &

   Step 1: Download the Software

   Do not use the "GameSir T4w" app found on the Microsoft Store; this is often outdated and incompatible with the T4 Pro. You must use the official GameSir Connector software. Download and install the official Gamesir app or

   Download the Firmware: Obtain the firmware executable (currently version V1.45 as of recent updates) from the official GameSir T4 Pro Tutorial page.

   1. Disconnect the controller.
   2. Hold LB + RB + Home buttons simultaneously.
   3. While holding, plug in the USB cable.
   4. The LED should flash rapidly – now reopen the update tool and try again.