User manual

1.The usb cable can only be plugged into the left keyboard

left --> master

right --> slave (The usb plug is only used to upgrade the firmware)

2.Flash firmware button

①Connect to the computer with a data cable

②Double click the button (not single click!)

③Computer will appear a disk named "IFKB"

④Copy uf2 file to the disk and wait for the disk to disappear. The firmware upgrade is successful.

*Both hands need to upgrade firmware. The firmware file is the same file.

3.Pay attention to static electricity

4.Firmware updates log

20240312

log：Enhanced RGB stability. If the RGB freezes, you can update it.

122KB

ifwcorne_20240311.uf2