This is the safest method if your phone can still power on or reach recovery mode. Download the Oppo_A57_CPH1701_EX_11_A.35_..._OTA.zip file. Copy the file to the phone's SD card.
: Ensure the device is adequately charged to prevent it from powering off during the process. : Install the latest OPPO USB Drivers on your computer. : Use a high-quality USB cable for the connection. Flashing Procedure oppo a57 cph1701ex-11-a.35 flash file
