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How to flash the firmware and factory reset the Keychron M3 Mini 4K Metal Edition mouse

Note:
(1) If everything is working with your mouse, please don’t flash the firmware. There is a chance it can damage your mouse.
(2) This guide is for Keychron M3 Mini 4K Metal Edition users only. Please flash the firmware on your Windows PC. (We are working on making it accessible for Mac systems.)
(3) If you have multiple Keychron mice, please flash each one by one. Do not plug all the mice into the computer at the same time.

The firmware update includes two parts:
(1) Flash the firmware for the Type-A/Type-C 2.4 GHz Receiver;
(2) Flash the firmware for the M3 Mini 4K Metal Edition mouse.

Please follow the instructions below.

Flash the firmware for the 4K Wireless Receiver

Step 1: Connect the 4K wireless receiver to your Windows PC.

Step 2: Download the firmware update app below. Before opening it, please make sure your M3 mini 4K mouse is NOT in wired mode.

Download the Keychron Firmware Updater (Windows)

 Step 3: Open this app and start your receiver firmware update.

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m3-mini-metal-5__PID:c8136db5-5b74-4a35-b9d4-8ba7267ae9a3
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Now you have updated the receiver firmware successfully. Please follow the instructions to flash the mouse firmware.

Flash the firmware for the M3 Mini 4K Metal Edition Mouse.

Unplug the receiver from your device. Then connect your M3 mini 4K Metal Edition mouse by wire.

Note:
(1) Make sure your mouse is connected to the PC with the cable that came with the box. If you are using a third-party cable, please make sure it can pass data as some cables can only be used for charging.
(2) Ensure only one Keychron mouse is connected to your computer. If you have multiple Keychron mice, please flash each one by one.

Please repeat Step 3 above.

m3mini_fd0d8251-4c37-443e-9d55-c05668fd8f8c__PID:6db55b74-1a35-49d4-8ba7-267ae9a36dc7
m3-mini-metal-2__PID:5b741a35-f9d4-4ba7-a67a-e9a36dc71b02
m3-mini-metal-2__PID:5b741a35-f9d4-4ba7-a67a-e9a36dc71b02

Now you have updated the mouse firmware successfully.

Factory reset the M3 Mini 4K Metal Edition mouse

After the receiver and mouse have finished the update, please factory reset the M3 Mini 4K Metal Edition mouse.

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Note: After factory resetting, you need to reconnect the mouse to your device via the receiver or re-pair via Bluetooth.

*Refer to the following instructions to learn how to connect the M3 Mini 4K Metal Edition mouse to your device in 2.4GHz/Bluetooth mode.

2.4-GHz-mode-of-the-M2-4K-mouse.png__PID:0a6904c2-d36b-464f-82c0-caafc32b4719
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2.4-GHz-mode-of-the-M2-4K-mouse-3.png__PID:9d400a69-04c2-436b-b64f-02c0caafc32b
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