I purchased a B.face X2 PCB a while ago and just finished assembling it.
I soldered switches+LEDs myself, rest was bought pre-soldered.
I have bright white LEDs in the switches and it worked perfectly fine for a couple of days. I set up Fn shortcuts for LED light settings, tried all settings out, worked great.
Now all of a sudden when I plug in the keyboard, the LED lights are dark. Then when I press any key, the LED (for all the keys) lights up for 3 seconds, and then fades out completely over 2-3 seconds. I can still turn the LED on-off using shortcuts, and the caps lock LED stays on like normal when pressed.
Video of the issue hereWhat’s going on here? Did I break something during soldering? Why did it work fine for 5 days straight?