Building and installing
There are multiple installation methods for your Amazon Fire 7 (7th generation) (2017). They all rely on flashing one or more partitions on your device.
All installation methods can lead to data loss.
Flashing a partition will erase everything on the partition. Additionally,
the common backups methods, e.g. TWRP, will not backup the
This will produce a folder with a flashing script, and the partition images for your Amazon Fire 7 (7th generation) (2017).
$ nix-build --argstr device amazon-austin -A build.android-fastboot-images
Alternatively, you can build a specific partition image:
$ nix-build --argstr device amazon-austin -A build.android-bootimg $ nix-build --argstr device amazon-austin -A build.rootfs
The device will need to be booted in its bootloader, or
The boot images can be installed using the following command, assuming the
android-fastboot-images output was used.
If you have a system image (
system.img) built, you can use
flash it to the device. Note that it might be too big to fit over the
partition. In such case, it can be flashed on the
$ fastboot flash userdata system.img
Using a flashable zip
An alternative installation method is to use a flashable zip. The flashable zip can be built for your Amazon Fire 7 (7th generation) (2017) using one of the following commands:
$ nix-build --argstr device amazon-austin -A build.android-flashable-bootimg $ nix-build --argstr device amazon-austin -A build.android-flashable-system $ nix-build --argstr device amazon-austin -A build.android-flashable-zip
The first two will flash only a specific partition. The last one contains the partitions of the two previous one.
The zip can either be copied to the device and selected in a compatible
Android recovery, or sent to the device through
$ adb sideload /nix/store/eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee-flashable-amazon-austin-boot.zip
By default it will flash to the
system partition. Some configurations may
change this to flash to the
userdata partition. In that case, no warning is
given before flashing.
Do not acquire any Amazon Fire devices with the intent to run Mobile NixOS on it.
They are not recommended devices. They are not designed to allow the end-user to run customized operating systems.
This works on top of the amonet hack, which allows unsigned images to be booted on some Amazon Fire devices.
amazon-austin requires partially disassembling the device at
least once to exploit a boot ROM flaw.
|DO NOT flash on top of the hacked TWRP. As it is the image is not modified to hold the "hacked" payload, which means recovery would be unusable.|
Only Using a flashable zip is supported and works.