Downloads

This page lists available builds of JanOS. At the moment we have builds available for GeeksPhone Keon and Peak, and the Flame. For information how to build for other devices, see the device list page. The images come with a set of examples which you can try out after flashing.

View examples

Flashing instructions

WARNING!

Do not attempt to flash on non-supported phones. This will brick your device!
Do not remove the mainboard from the device before flashing.
This procedure will wipe your device, and the only way to restore your device is through a factory build provided by your device manufacturer.

All good?

Download the build for your device
Install adb and fastboot
Unzip the build, and run flash.sh or flash.bat
Wait until the JanOS logo appears

Builds

Flame

Before flashing, make sure you upgraded to base image v180 or higher. Instructions are provided by Mozilla. Failure to do so might brick your device.

GeeksPhone Keon

This build comes with kernel support for 2 GPIO pins, accessible from /sys/devices/platform/gonzo-sysfs. The volume buttons have been disabled.

GeeksPhone Peak

Does not come with kernel support for GPIO ports yet.

Raspberry Pi

Highly experimental, but has support for GPIO ports. Please follow these instructions to flash the build.

ZTE Open C

This is not a full build, so no kernel changes.