Official support for the A31 has largely ended; it reached its "end of life" cycle and typically does not receive major OS updates like Android 12. Purpose of this File: Such RAR files are usually used to: Fix Bootloops: Repair a device stuck on the logo.
Bypass forgotten screen patterns or FRP (Google Factory Reset Protection).
Revert to an older version if the current one is buggy. Pros & Cons Oppo A31 - Full specifications, price and reviews - Kalvo
Primarily CPH2031, but also applies to CPH2015 and CPH2029.
The file is a third-party firmware package designed for the OPPO A31 (2020) . While it is marketed as a solution for unbricking or updating the device, users should exercise extreme caution as it is not an official release from OPPO Support . Device Compatibility Model: OPPO A31 (2020).