copy of https://lineageosroms.com/blueline/ for posterity
Install LineageOS on blueline
Basic requirements
- Make sure your computer has
adb
andfastboot
. Setup instructions can be found here. - Enable USB debugging on your device.
Unlocking the bootloader
Before proceeding, ensure the data you would like to retain is backed up to your PC and/or your Google account, or equivalent. Please note that OEM backup solutions like Samsung and Motorola backup may not be accessible from LineageOS once installed.
- 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.
- Once the device is in fastboot mode, verify your PC finds it by typing:
fastboot devices
Tip: If you seeno permissions fastboot
while on Linux or macOS, try runningfastboot
as root. - Now type the following command to unlock the bootloader:
fastboot flashing unlock
- 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.
Temporarily booting a custom recovery using fastboot
- Download a custom recovery – you can download Lineage Recovery. Simply download the latest recovery file, named something like
lineage-17.1-20201116-recovery-blueline.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.
- Once the device is in fastboot mode, verify your PC finds it by typing:
fastboot devices
Tip: If you seeno permissions fastboot
while on Linux or macOS, try runningfastboot
as root.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. - Temporarily flash a recovery on your device by typing:
fastboot flash boot <recovery_filename>.img
Note: Newer fastboot releases dropped legacy A/B support, so it might attempt to flash toboot__a
/boot__b
rather thanboot_a
/boot_b
if you try to flashboot
. In this case, you must manually specify which slot to flash to based on what slot fastboot failed to flash to. For example, if fastboot fails to flash toboot__a
, you must flash toboot_a
.Tip: The file may not be named identically to what stands in this command, so adjust accordingly. - With the device powered off, hold Volume Down + Power.
Installing LineageOS from recovery
- Download the LineageOS installation package that you would like to install or build the package yourself.
- Optionally, download additional application packages such as Google Apps (use the
arm64
architecture).
- Optionally, download additional application packages such as Google Apps (use the
- If you are not in recovery, reboot into recovery:
- With the device powered off, hold Volume Down + Power.
- 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
- (Optionally): If you want to install any additional add-ons, click
Advanced
, thenReboot to Recovery
, then when your device reboots, clickApply Update
, thenApply from ADB
, thenadb sideload filename.zip
those packages in sequence.Note: Additional 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 Google Apps 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”.
We strongly advise you to opt out of installing these, as they may cause your device to bootloop,
as well as attempt to access or corrupt your data.
Update to a newer build of the same LineageOS version on blueline
Updating your device
Using the LineageOS Updater app
- Open Settings, navigate to “System”, then “Updater”.
- Click the Refresh Icon in the top right corner.
- Choose which update you’d like and press “Download”.
- When the download completes, click “Install”. Once the update process has finished, the device will display a “Reboot” button, you may need to go into the Updater menu in Settings, “System” to see it. This will reboot you into the updated system.
From your PC via the push_update script (Linux/macOS only)
- Make sure your computer has working
adb
. Setup instructions can be found here. - Enable USB debugging on your device. Additionally, open Settings, then “System”, then “Developer Options”, and then either check “Rooted Debugging” (LineageOS 17.1 or above) or select “Root Access Options”, then “ADB Only”.
- Run
adb root
- Run
wget
https://raw.githubusercontent.com/LineageOS/android_packages_apps_Updater/lineage-16.0/push-update.sh
&& chmod +x push-update.sh - Run:
./push-update.sh /path/to/zip
- Open Settings, navigate to “System”, then “Updater”. click “Install”. Once the update process has finished, the device will display a “Reboot” button, you may need to go into the Updater menu in Settings, “System” to see it. This will reboot you into the updated system.