This is the most challenging step for Oppo devices. Oppo tightly restricts bootloader unlocking. You will need to use specific deep-testing APKs or exploit tools compatible with the Snapdragon 665 platform to unlock the bootloader.
: While standard rooting is blocked, some advanced users have attempted methods using patched boot images through ADB, though this remains risky and complex. Device Quick Info Processor Snapdragon 665 Max OS ColorOS 11.1 (Android 11) Unlock Status Permanently Locked (for most regions) oppo a9 2020 custom rom work
It was a typical Saturday morning for 19-year-old Alex, a tech enthusiast who spent most of his free time exploring the world of Android development. He had recently purchased an Oppo A9 2020, which was a great device, but he wanted more. He wanted to unlock its full potential. This is the most challenging step for Oppo devices