You need to make backup your Oppo A15 CPH2185P phone before performing Flashing a new ROM that all your app and personal data you want not to lose. Also all your app is available on Play store you can easily install on your Oppo A15 CPH2185P android phone. You can flash Oppo A15 Android Phone Firmware with Flash tool.If the above methods did not work, Follow this guide Hard Reset to wipe all data.The...
