deskthority

Hello, First excuse my english.
Since one week, on own/use a 0xcb static.
All composnent on the pcb where soldered by the vendor/creator of the kb except switchs that i soldered.

Since the begining, i have different problems.
Theses problems are on 4 different PC, laptop and desktop, Linux and windows

The keyboard didn’t like all usb cable/port. For exemple with à custom cable, i use with all my others keyboards without pbms, on static, one time on 2 windows say "unknow device" when plugged.

On my desktop pc, impossible to flash firmware.

On some usb port, some letters write sometime several time (not always the same letters).

Finally, i found one cable and one usb port that work without problems since one week.

Yesterday, suddently after day and hours of using, when i press "u" it write yuhjbn.
Tested with via matrix keytester, same pbm.

Yesterday, i have unsoldered/resoldered the "u" switch, made several tests (wrote 200 tirme u without pbms) and think that it was the problem.
This morning after one hour of use, pbm came back again...
I have unsoldered/resoldered à New switch and it worked 10 minutes.

After that i have tested another cable, to test, and with the new cable, U wrote U. I came back to old cable and U wrote U too, 10 seconds and pbm occur again. Came back to new cable -> same pbm.

Do you have an idea of what could be the pbm ? Contrôler, diode, pcb, other thing ?

Thanks for reading

This keyboard?

https://0xcb.dev/static/

Go join their discord and talk to them about it. What you described sounds like a controller issue to me, but a complex one. Since that keyboard is an active project, go talk to them about it.

Yes this one. I’m already on the discord an spkeak whit them.
You’re not the first to talk me about contrôler pbm.

Thanks for your answer