How to Fix FUN60 2.4G Wireless Mode Disconnecting Frequently？

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If you’ve ruled out USB power settings and ensured the receiver is plugged directly into the computer (not through a hub), the issue may be related to the receiver firmware.

Update the Receiver Firmware:
Download the latest firmware: Receiver Firmware Update
⚠️ This firmware is ONLY for the FUN60 2.4G receiver — using it on other devices may cause them to stop working.

Before Updating:

• Disconnect all other receivers: Unplug any other wireless device receivers from your computer, leaving only the FUN60 receiver connected.
• Confirm you’re updating the right device: Ensure only the keyboard’s receiver (dongle)as below is being updated to avoid damaging other devices. Press upgrade to start.

Re-Pair the PCB and Receiver(if needed):

1. Activate 2.4G Mode: Quickly press Fn + Y — the Y key’s LED will flash slowly, confirming the mode is active.
2. Enter Pairing Mode: Press and hold Fn + Y for 3 seconds until the Y LED flashes rapidly. Simultaneously insert the receiver/dongle into the computer.
3. Confirm Pairing: When pairing succeeds, the Y LED stays lit for 2 seconds. If the device isn’t detected within 30 seconds, the LED will turn off, and the keyboard will enter sleep mode. Repeat steps 1 and 2 if needed.