Install LineageOS on heart
Back to the overviewDo not continue after something fails!
Basic requirements
- Read through the instructions at least once before actually following them, so as to avoid any problems due to any missed steps!
- Make sure your computer has
adb
andfastboot
. Setup instructions can be found here. - Enable USB debugging on your device.
- Make sure that your model is actually listed in the “Supported models” section here (exact match required!)
If the vendor provided multiple updates for that version, e.g. security updates, make sure you are on the latest!
If your current installation is newer or older than Android 10, please up- or downgrade to the required version before proceeding (guides can be found on the internet!).
Unlocking the bootloader
- Visit Lenovo’s ZUI official unlocking website, where you’ll be asked to fill in some device and contact information.
-
Follow the instructions and get your unlock file.
-
Enable OEM unlock in the Developer options under device Settings, if present.
- Connect the device to your PC via USB.
- On the computer, open a command prompt (on Windows) or terminal (on Linux or macOS) window, and type:
adb reboot bootloader
You can also boot into fastboot mode via a key combination:
- With the device powered off, hold Volume Down + Power. Keep holding both buttons until the word “FASTBOOT” appears on the screen, then release.
- Once the device is in fastboot mode, verify your PC finds it by typing:
fastboot devices
If you don’t get any output or an error:
- on Windows: make sure the device appears in the device manager without a triangle. Try other drivers until the command above works!
- on Linux or macOS: If you see
no permissions fastboot
try runningfastboot
as root. When the output is empty, check your USB cable and port!
-
Now type the following command to unlock the bootloader:
fastboot flash unlock sn.img
Where
sn.img
is the bootloader unlock file you received in the email. -
Next, use your second unlock command
fastboot oem unlock-go
Note: At this point the device may display on-screen prompts which will require interaction to continue the process of unlocking the bootloader. Please take whatever actions the device asks you to to proceed. - Wait for the bootloader unlocking process to complete. Once finished, you can check if bootloader is successfully unlocked by typing:
fastboot getvar unlocked
Verify that the response is
unlocked: yes
. In that case, you can now install third-party firmware. - If the device doesn’t automatically reboot, reboot it. It should now be unlocked.
- Since the device resets completely, you will need to re-enable USB debugging to continue.
Installing a custom recovery using fastboot
- Download Lineage Recovery. Simply download the latest recovery file, named something like
lineage-19.1-20220627-recovery-heart.img
. - Connect your device to your PC via USB.
- On the computer, open a command prompt (on Windows) or terminal (on Linux or macOS) window, and type:
adb reboot bootloader
You can also boot into fastboot mode via a key combination:
- With the device powered off, hold Volume Down + Power. Keep holding both buttons until the word “FASTBOOT” appears on the screen, then release.
- Once the device is in fastboot mode, verify your PC finds it by typing:
fastboot devices
If you don’t get any output or an error:
- on Windows: make sure the device appears in the device manager without a triangle. Try other drivers until the command above works!
- on Linux or macOS: If you see
no permissions fastboot
try runningfastboot
as root. When the output is empty, check your USB cable and port!
Tip: Some devices have buggy USB support while in bootloader mode, if you seefastboot
hanging with no output when using commands such asfastboot getvar ...
,fastboot boot ...
,fastboot flash ...
you may want to try a different USB port (preferably a USB Type-A 2.0 one) or a USB hub. - Flash recovery onto your device (replace
<recovery_filename>
with the actual filename!):fastboot flash recovery <recovery_filename>.img
- Now reboot into recovery to verify the installation.
Do not reboot into the existing OS, since it will overwrite the recovery you just installed!
-
With the device powered off, hold Volume Down + Power. Keep holding both buttons until the word “FASTBOOT” appears on the screen, then select recovery mode by pressing volume button, press the power button to reboot to recovery.
Note: If you can’t power down the device, try long-pressing the key-combination (if any was used in the instructions above) until the device reboots and follow the instructions above
-
Installing LineageOS from recovery
- Download the LineageOS installation package that you would like to install or build the package yourself.
- (Optionally): If you want to install an application package add-on such as Google Apps (use the
arm64
architecture), please read and follow the instructions on Google Apps page
- (Optionally): If you want to install an application package add-on such as Google Apps (use the
- If you are not in recovery, reboot into recovery:
- With the device powered off, hold Volume Down + Power. Keep holding both buttons until the word “FASTBOOT” appears on the screen, then select recovery mode by pressing volume button, press the power button to reboot to recovery.
- Now tap Factory Reset, then Format data / factory reset and continue with the formatting process. This will remove encryption and delete all files stored in the internal storage, as well as format your cache partition (if you have one).
- Return to the main menu.
- Sideload the LineageOS
.zip
package:- On the device, select “Apply Update”, then “Apply from ADB” to begin sideload.
- On the host machine, sideload the package using:
adb sideload filename.zip
.Tip: Normally, adb will reportTotal xfer: 1.00x
, but in some cases, even if the process succeeds the output will stop at 47% and reportadb: failed to read command: Success
. In some cases it will reportadb: failed to read command: No error
oradb: failed to read command: Undefined error: 0
which is also fine.
-
(Optionally): If you want to install any add-ons, repeat the sideload steps above for those packages in sequence.
Note: Add-ons aren’t signed with LineageOS’s official key, and therefore when they are sideloaded, Lineage Recovery will present a screen that saysSignature verification failed
, this is expected, please clickContinue
.Note: If you want the Google Apps add-on on your device, you must follow this step before booting into LineageOS for the first time! - Once you have installed everything successfully, click the back arrow in the top left of the screen, then “Reboot system now”.
Get assistance
After you’ve double checked that you followed the steps precisely, didn’t skip any and still have questions or got stuck, feel free to ask on our subreddit or in #LineageOS on Libera.Chat.