How to restart the device?
Press the button on the back of the device (next to the USB port).I see red or green light next to the USB port, what does it mean?
Green LED indicates charging status. It will be powered on while charging, or flash slowly if no battery is connected.Red LED indicates bootloader state:
- double-flash then off — normal boot
- flashing rapidly — writing to the memory in process
- flashing quickly — in DFU mode but USB not connected
- flashing slowly — in DFU mode, ready to be programmed
How to enter Device Firmware Upgrade (DFU) mode?
Double-click the reset button quickly. Connect to the PC with the USB cable (may already be connected). You should see a new mass storage device. Copy the new UF2 firmware file directly to the root folder of the device, without renaming, replacing or anything else. Wait for it to eject itself. That's it!Will firmware update change my keymap?
No, if you've made at least one change to your keymap via ZMK Studio, new firmware will not overwrite your settings.How to build a modified firmware?
There are two options. First one — you fork the config repository and make changes there — Github actions will do all the work for you, just download the artifact at the end. Second one — building locally. You would need to clone the firmware repository and follow README.How to reset all the settings to defaults?
Execute `board erase` command with Marshmellow UI.How to unbrick the device?
Flash the firmware-eraser that will clear your settings partition. Then flash your regular firmware. Do not leave the eraser on your device!