I've managed to compile a working firmware with this config: https://github.com/gleber/qmk_firmware/commit/54078ec73c0ff2bd01984242f748a837c1954d03
This isn't tested much, just the basics: keys and split setup. LED, bootloader magic key and any other features are not yet implemented. Tested only the Miryoku layout so far.
I've disassembled it and found a few things.
Back of one of the sides looks like this:
A more close up photo of the chip shows some STM32 chip:
If you decode the QR code it gives you a short link to what seem to be JLC PCB page about this specific PCB:
- right: https://m-9.cn/2kx9vqhz04xv
- left: https://m-9.cn/2kx9vqu40dft
It includes product name 【X.Tips】X7S小分体键盘_-_V2.0_【热插拔】PCB-X7S-V2-R__20240726163326 which translates with Google Translate to 【X.Tips】X7S small split keyboard_-_V2.0_【Hot plug】PCB-X7S-V2-R__20240726163326
And these schematics images for the right side:
and for the left side:
Attached via-x7.json file was sent to one of the buyers by the seller. It works for my keyboard.
Hello, I bricked the left side of the keyboard using the method provided, and now I cant unbrick it. I've flashed the right side first and than other and it's now unresponsive (right side still works with flashed layout). I've tried going the STLink route but it doesn't work, it shows me a window that says "Unable to get core ID" followed by "No STM32 target found". I've checked if the working half is detected by STM and it does. I've ordered the STLink v2 off of Aliexpress and updated it's firmware with the stm32 tool and connected the cables as labeled. Nothing works
Does anyone have an Idea of what to do here?
EDIT: Thought this would possibly help, I've checked and it's not completely dead. when i connect the right half to my PC, Windows detects it as "Unknown USB Device (Device Descriptor Request Failed)"