Hello
I received two pair of assembled Corne keyboards designed by Foostan. I was not convinced about my ability to solder the SMD leds. I read that it was difficult on Helix and Corne so I let the seller build it for me... But there are many issues, especially on one pair or keybaord. I would like to fix it myself.
1. Leds
Left hand keyboard have only backlight LED on. The rest is off. On the other part 5 key LEDs are always turn off. I saw them working once while I was flashing but I don't understand why it is not working.
I did some rgb reset but it doesn't change the behavior :
https://github.com/qmk/qmk_firmware/blob/2c0bc5ed6be737e98377fa2299102f6737bbea72/keyboards/crkbd/keymaps/default/keymap.c#L237-L2432. Keys
I have three deads keys. They are not producing any signal. Diodes are ok I checked them with multimeter, polarity is good too, I compared with my other working Corne keyboard. Soldering seems ok on Pro Micro, keycaps, and diodes. What could I check to see that everything is ok? Pro Micro output for this column?
And Highdef photos
Suggestion
1. I have the feeling that Pro Micro are not properly flashed even if I can correctly change the mapping on both hands, it seems that for deeper mechanism flash is not done properly, or maybe the firmware doesn't reset few behaviors?
2. Soldering can also be an issue, I have a good Weller soldering station but no heat station, so I can fix basic soldering. I don't see any bad soldering on the none working switch part but maybe I'm wrong
3. Maybe the pro micro is partially dead?
I read QMK documentation all the afternoon but I doesn't feel enough confident to start puting the multimeter everywhere on the pcb. Feel free to speak to me like if I was a newb
I would love to speak japanese to get help from Japan Discord keyboard group but sadly I am not. :/
Thanks in advance