Given the high risk and low reward, consider these instead:
| Obstacle | Explanation | |----------|-------------| | | Oppo locks bootloaders. Without unlocking, you cannot flash custom ROMs. | | MediaTek CPU | No official fastboot oem unlock command. Requires unofficial tools (MTK Client, SP Flash Tool). | | No Official Support | No LineageOS, Pixel Experience, or TWRP team supports this device officially. | oppo a9 2020 custom rom work