- Build for yourself
- Update to a newer vendor firmware version
- Update to a newer build of the same LineageOS version
- Upgrade to a higher version of LineageOS (e.g. lineage-19.1 -> lineage-20)
Special boot modes
Recovery: With the device powered off, hold Volume Down + Power.
Bootloader/Fastboot/Download: With the device powered off, hold Volume Up + Volume Down + Power.
Find help online
You can find assistance with LineageOS on our subreddit, or in #LineageOS on Libera.Chat.
Note: This page is auto-generated for the OnePlus 9, based on the device’s information, located here. You can find similar instructions for every officially-supported device on this wiki.