Replace heavy apps with:

| Aspect | Status | |--------|--------| | Bootloader Unlock | (Oppo does not provide unlock tools for MediaTek budget devices) | | TWRP (Custom Recovery) | Unofficial/broken versions exist on forums, but not stable | | Custom ROMs (GSI) | Possible to boot some Generic System Images (GSI) but with major bugs | | Dedicated ROMs (e.g., LineageOS) | None | | Kernel Source | Partially available for similar chipset, but not for A11k specifically |

There is no working custom ROM for the Oppo A11k. Anyone claiming otherwise is likely sharing a virus, a paid scam, or a ROM meant for a different phone (Oppo A11, which is different). Stick to launcher + debloat for the best safe experience.

The following ROMs are currently the most popular choices for the Oppo A11k, balancing performance with modern features. OPPO Global Community it's possible to download a Custom rom like an android 16