We offer daily Droidian builds containing a development snapshot of Cutie Shell.

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Droidian is a GNU/Linux distribution based on top of Mobian, a Debian-based distribution for mobile devices. The goal of Droidian is to be able to run Mobian on Android phones.

Which image to get?

The recovery flashable zipfile needs to be flashed via a suitable Android recovery (such as TWRP). Recovery flashable zipfiles are generic. Nevertheless, you should pick up the correct zipfile for your specific device:

  • Device with an Android 9 vendor: api28
  • Device with an Android 10 vendor: api29
  • Device with an Android 11 vendor: api30

Recovery-flashable zipfile: bundles

Recovery flashable zipfiles support the addition of bundles, which allow to add functionality directly during the flashing process.

Currently available bundles:

  • Devtools: Useful development tools for porters, not available in nightlies as they’re embedded in the rootfs
  • Adaptation bundle: Device specific bundle (containing kernel, device-specific settings, etc)

Currently, we provide adaptation bundles for Volla Phone and Google Pixel 3a.

Recovery-flashable zipfile: installation instructions


If your device is A/B device, it is necessary to have both slots on same Android version.

Then, boot your favourite Android recovery.


From recovery open adb sideload mode (under advanced on TWRP) and run following commands on your computer replacing ARCH_YYYYMMDD with the version of Droidian and vendor-device with the vendor and device codenames:

  • adb sideload droidian-OFFICIAL-cutie-phone-rootfs-apiXX-ARCH-VERSION_DATE.zip

If you want to sideload devtools:

  • adb sideload droidian-devtools-ARCH_YYYYMMDD.zip

If you want to sideload an adaptation bundle:

  • adb sideload droidian-adapatation-vendor-device-ARCH_YYYYMMDD.zip

Note that you have to restart the sideload mode by tapping back and starting sideload again before every adb sideload command.

Finalizing installation

Now, you have to reboot the device. It should boot to Cutie after rebooting once more automatically.


If the image does not boot and your userdata is not an ext4 partition, you might try formatting it. Note that this is a destructive operation, you cannot recover files from userdata afterwards!

  • fastboot format:ext4 userdata