If you are determined to modify your device, here is the current state of "what works" and what doesn't: Since the
Because there is no official unlock method, the developer community rarely supports these devices. You won't find official builds of popular ROMs on sites like XDA Forums for this specific model. Potential "Work" for Enthusiasts oppo a9 2020 custom rom work
is the . Unlike many other manufacturers, OPPO typically does not provide an official method to unlock the bootloader for its global devices. Without an unlocked bootloader, you cannot flash a custom recovery like TWRP or install third-party operating systems. If you are determined to modify your device,