Go to Settings > Software Updates . The phone will automatically check for any available "Over-the-Air" (OTA) updates.
If your device is bricked, stuck in a loop, or an OTA update fails, you may need to manually flash the stock ROM. Prerequisites A Windows PC/Laptop. installed on your PC. Oppo Firmware Flash Tool (often MSMDownloadTool or similar). The correct Oppo A57 2016 Stock ROM file. Steps to Flash Firmware: oppo a57 2016 firmware
Ensure you download the firmware specifically for the OPPO A57 (2016 - CPH1701 or China Model) . Using the wrong version can damage your device permanently. Where to Download OPPO A57 (2016) Stock Firmware Go to Settings > Software Updates
For devices that won't start, you must use a PC-based flash tool. Prerequisites A Windows PC/Laptop
: The simplest method is to go to Settings > Software Updates and check for a direct download from Oppo's servers.
The OPPO A57 has three main regional variants:
Verify your USB cable supports data transfer. Ensure you have disabled "Driver Signature Enforcement" in Windows before installing the Qualcomm drivers.