RetroCompass
RetroCompass

GameSir Cyclone — Firmware update

Quick answer

Steps

  1. 1Install the GameSir app on your phone (download from gamesir.hk or scan the manual's QR code).
  2. 2Power the Cyclone on in Android mode (HOME + A) and connect it over Bluetooth.
  3. 3Open the app, tap the GameSir Cyclone, then open Firmware update and follow the prompts.
  4. 4Keep it charged and connected until it finishes, then power-cycle the controller.
  5. 5For the optional 2.4G dongle, use the GameSir Connect / Flash Tool on a PC: plug in the dongle, hold its pairing button ~5s until Device Status shows green ONLINE, then Update Firmware.

LED states

  • Blink during update—Firmware writing — do not disconnect
  • Solid (dongle tool)—Dongle ONLINE and ready to update
Last verified: 2026-06-20Source: gamesir.com

The Cyclone controller updates through the GameSir mobile app: connect over Bluetooth in Android mode, open the controller, and run Firmware update. The separately sold 2.4G dongle is updated on a PC with GameSir's Flash Tool — plug it in, hold the pairing button until it reads green ONLINE, then update. Never unplug while a progress bar is running.

FAQ

Do I use GameSir Connect on PC?
GameSir Connect's PC list focuses on newer models; for the original Cyclone, use the GameSir mobile app for the controller and the dedicated PC Flash Tool for the 2.4G dongle.
Can I update from an iPhone?
Yes — install the GameSir app on iOS, but connect the controller in Android mode (HOME + A) so the app can talk to it.

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