Only download the rollback package from OPPO’s official community website (not random forums). Fake “rollback” files are common and contain malware.
3/5. A lifeboat for a sinking phone, but you’ll be drifting on an old, unsupported sea. oppo a9 2020 rollback package
Rating: ⭐⭐⭐☆☆ (3/5)
Essential if you hate the update, but dangerous if you don’t read the fine print. Only download the rollback package from OPPO’s official