A: Yes, but you must flash the full Android 6.0 OFP rom via QFIL. Downgrading may cause sensor or camera issues due to driver mismatches.
At its launch, the OPPO A57 2016 firmware was built upon , based on Android 6.0 Marshmallow . This specific version of the firmware was designed to optimize the performance of the Qualcomm Snapdragon 435 chipset. Unlike "stock" Android, OPPO's firmware was heavily customized to provide a more "iOS-like" experience, featuring simplified navigation, a lack of an app drawer, and vibrant iconography. oppo a57 2016 firmware
| Use case | Best firmware | |----------|----------------| | Daily stable | CPH1701EX_11_A.20 (Android 6.0.1) | | Latest features | CPH1701EX_11_A.31 (Android 7.1.1) – if available | | Repair bootloop | Any official OFP with “Firmware Upgrade” | A: Yes, but you must flash the full Android 6
# Linux tool to extract oppo_decrypt.py CPH1701EX_11_A.14_170907.ofp output_dir This specific version of the firmware was designed