Updated - Oppo A9 Custom Rom

Assuming you have unlocked bootloader and downloaded your chosen ROM ( .zip ) + GApps (NikGapps recommended).

This is where things get a bit mixed. Due to the difficulty of bootloader unlocking and Oppo’s general reluctance toward the modding community, there is . Nor is there official support for popular ROMs like Pixel Experience or crDroid directly from their respective websites.

Oppo locks its bootloaders aggressively. Unlike Samsung or Google, Oppo does not provide an official bootloader unlock tool for the A9. You will have to rely on: Oppo A9 Custom Rom

Before flashing any software, understand why you might want to leave ColorOS behind.

Custom ROM installation is not a trivial undertaking. Be aware of the following risks: Assuming you have unlocked bootloader and downloaded your

: Set up a Linux build environment with at least 250GB of disk space [5.1]. Source Code

Go to on your Oppo A9. Tap Version/Build Number seven times to unlock Developer Options. Go back to the main settings, open Developer Options , and enable both OEM Unlocking and USB Debugging . Step 2: Boot into Fastboot Mode Nor is there official support for popular ROMs

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Confirm the unlock on your phone screen using the volume keys. Step 2: Flash a Custom Recovery (TWRP or OrangeFox)