Flash custom Rom via sideload
Doomblow.Before Starting Flashing
Backup all your data to an external source.
A clean flash is mandatory if coming from another ROM or a previous unofficial build.
Keep in mind that a clean flash is always recommended when coming from another ROM.
Clean Flash
Reboot to fastboot mode.
Flash custom recovery image via fastboot flash recovery recovery.img
Reboot to recovery mode: fastboot reboot recovery.
Format data.
Connect your phone to the PC.
Apply update via ADB via adb sideload <rom_filename>.zip.
Confirm the update and click "Yes" to reboot to recovery.
Reboot to the system.
Dirty Flash
Reboot to recovery.
Go to Apply update > Apply from ADB.
In the command prompt, sideload the ROM using the command: adb sideload <rom_filename>.zip.
Confirm the update and click "Yes" to reboot to recovery.
Reboot to the system.