Qin F21 Pro Rom -

The preloader and lk remain stock even after unlocking. If they contain backdoors (unproven but suspected for some Chinese devices), a custom ROM cannot remove them—only replace with open-source alternatives like lk2nd, which is experimental on MT6761.

The Qin F21 Pro can be transformed into a minimalist, privacy-respecting device without sacrificing essential Android functionality. Key contributions:

Future work:

For a brief, beautiful period, the manufacturer released an official Global ROM for the Qin F21 Pro. This version ran Android 12 instead of 10 and came pre-loaded with Google Play Services and a clean launcher.

Pros: Stable, official OTA updates, full Google compatibility, no Chinese bloat. Cons: Almost impossible to find officially now. The company has pivoted back to the Chinese market. You can find this ROM file floating on XDA Forums and Telegram groups, but flashing it requires unlocking the bootloader. qin f21 pro rom

If you can find the file named "Qin_F21_Pro_Global_12_2023.zip", this is the best daily driver ROM available.

Because the F21 Pro uses Treble (Android 10+), any ARM64 A-only GSI should theoretically work. Popular options: The preloader and lk remain stock even after unlocking

| ROM | Base | GSI type | Working features | Broken | |-----|------|----------|------------------|--------| | LineageOS 18.1 | AOSP 11 | A-only, vndk-lite | Wi-Fi, Bluetooth, Calls, T9 backlight | Auto-brightness, GPS lag | | /e/ OS 0.22 | LineageOS 17.1 | A-only, microG | All of LOS + account sync | Same as LOS | | Phhusson’s AOSP 12 | AOSP 12 | GSI with patches | Full hardware after fixes | SELinux permissive |