Just60 keyboard produced by Yang. The keyboard comes with a custom Mass Storage Device bootloader and a TMK based firmware from ydkb.io.
To use a QMK based firmware, you might want to install a QMK bootloader. The PCB exposes 6 pins for ISP(In-System Programming), and they are located just under the ATMega32U4 chip. From left to right, the pins are VCC, SCLK, MOSI, MISO, RESET, GND. The GND is the square one. You could program the flash with any AVR programmer, or a Raspberry Pi with avrdude.
Backlight LEDs and Bluetooth are not working yet.
Make example for this keyboard (after setting up your build environment):
make ydkb/just60:default
See the build environment setup and the make instructions for more information. Brand new to QMK? Start with our Complete Newbs Guide.