namgweonHello, have you double checked that you've jumped a few solder pads around the keyboard PCB? Those pads are required for the proper LEDs to light up.
namgweonthe latest version of the firmware on the blog page for programming says 0.6 but it is 0.8. the developer has identified some issues that will be fixed in 0.9 addressing led not working for the split key leds. make sure you try version 0.9 when it comes out and that you closed the led traces with solder on the back of the pcb as zeal mentioned. the new version also adds extra led effect features with speed adjustment. :)
domoaligatoThe split key issue you were having was only for user-compiled firmware. There is no issue with the latest v0.8 firmware and configuring split keys via the zeal60 tool/.bat file method of programming layouts/settings.
where can I buy led replacement? my leds are have some troubles..