Altar I firmware releases and updates. Instructions to install firmware can be found here .

Release notes:

• Pairing mode now activated by a long press on the PAIR button, avoiding accidental presses
• Sensitivity of rotary encoder knob has been halved
• PAIR button disabled when Altar I is set to USB mode
• FN + DEL now sends FORWARD DELETE key, making various shortcuts possible
• Apple GLOBE key now activated by tapping FN key
• Pressing FN + ↑ (UP ARROW) and FN + ↓ (DOWN ARROW) now sends PAGE UP and PAGE DOWN key strokes
• Improved Bluetooth compatibility with some Intel Bluetooth adapters and drivers
• Improved overall Bluetooth stability
• Updated to ZMK v3.5

Release notes:

• Initial release

Prerequisite: Identify your Altar I pattern (either U.S. English or U.K. English). Pattern information can be found on the back of Altar I.

To install Altar I firmware:

1. Download the latest firmware
2. Ensure Altar I is turned on
3. Connect Altar I directly to your computer via USB
4. Press FN + CTRL + PAIR simultaneously to enter bootloader mode (Altar I will now appear as a storage device on your computer)
5. Copy the firmware file to Altar I (an error may appear, however the file has been successfully transferred in this case)
6. Once Altar I detects the new firmware being copied, it will automatically disconnect, reboot, install the new firmware, and reconnect itself.

Note: You may need to forget and re-pair Altar I for some changes to take effect.