Get LineageOS for the Samsung Galaxy S4 (SCH-R970, SPH-L720)
- Build for yourself
- Update to a newer build of the same LineageOS version
- Upgrade to a higher version of LineageOS (e.g. lineage-18.1 -> lineage-19.1)
Special boot modes
Recovery: With the device powered off, hold Home + Volume Up + Power. Let go of Power immediately when the phone vibrates, but keep holding the two other keys.
Bootloader/Fastboot/Download: With the device powered off, hold Home + Volume Down + Power.