KK3Max \ KK3Pro\Elves2 Pro BT Firmware V3.31 -2025.07.24
“KK3Max-NS39”、“KK3Pro-NS38”、“Elves2 Pro-NS59” BT Firmware V3.31
1. Added auto-off for controllers when Switch 2 enters Sleep Mode.
Upgrading method：
1. Turn off the controller,use the USB A to USB C cable to connect the controller and your computer.Press Set button in the middle and A button together to turn it into updating mode.
2. Go to computer and click "Update Firmware" and confirm to complete updating.
Note: If no upgrade is needed in the middle, long-press the mode button to turn off the controller, then turn it on again to exit the upgrade mode and resume normal operation.
