Tess65 Wired soldered/hotswap PCB software and refresh Guide
Tess65 wired soldered pcb and wired hotswap pcb support on VIAL.
VIAL here:https://get.vial.today
There is no need any firmware.
Refresh guide:
Choose one way to refresh
①Press ESC key not release, unplug and then plug USB-C cable, then release ESC key, there will show a "Modokeys (H)" harddisk on your computer list, then copy this uf2 file into "Modokeys (H)" harddisk . Then it will refresh successfully.

②Take out the / keycap,use tweezers to hold these two points and then release as this picture,there will show a "Modokeys (H)" harddisk on your computer list, then copy this uf2 file into "Modokeys (H)" harddisk . Then it will refresh successfully.