
LineageOS is a free, community built, aftermarket firmware distribution of Android 11, which is designed to increase performance and reliability over stock Android for your device.
LineageOS is based on the Android Open Source Project with extra contributions from many people within the Android community. It can be used without any need to have any Google application installed. LineageOS does still include various proprietary hardware-specific code.
All the source code for LineageOS is available in the LineageOS Github repo. And if you would like to contribute to LineageOS, please visit our Gerrit Code Review. You can also view the Changelog for a full list of changes & features.
Notes
- Before the initial installation, please make sure your Pixel 4a has already been updated to Android 11 official firmware so that the recovery can function correctly.
- This ROM comes with latest firmware bundled, so after the initial flash you don't need to worry about updating firmware manually.
- This ROM comes with source-built kernel and modules
- eSIM functions without GAPPS, but to manage (add / erase) eSIMs you will need to have GAPPS installed
- Update your Pixel 4a to official Android 11
- Download the latest boot.img and rom zip
- Boot to bootloader
- fastboot flash boot boot.img
- Boot to recovery
- Format data
- Flash LineageOS zip
- Optionally flash any addons:
- Advanced > Reboot to recovery
- Flash the addons
- Reboot
- Boot to recovery
- Flash LineageOS zip
- Flash the same addons you had previously installed:
- Advanced > Reboot to recovery
- Flash the addons
- Reboot
Official: https://download.lineageos.org/sunfish
Reporting bugs
- Grab a logcat right after the problem has occurred. (Please include at least a few pages of the log, not just the last few lines, unless you know what you're doing.)
- If it is a random reboot, grab /sys/fs/pstore/* (Do not bother getting a logcat unless you can get it just before the reboot. A logcat after a reboot is useless)
- If the problem disappears after running "setenforce 0" from a root shell, grab /data/misc/audit/audit.log
Known Issues
- On the first boot, you might be presented the message "SIM Manager has crashed". You can safely ignore it.
LineageOS
A free and open-source operating system for various devices, based on the Android mobile platform. This is a mirror of https://review.lineageos.org/ - LineageOS