: Scroll down and select About Device or About Phone . Check for Updates : Tap System Updates or Official versions .
The only "7.0" software you can officially download for the Oppo A57 is the Android 7.1.1 Nougat OTA (Over-The-Air) update package , often labeled as firmware version CPH1701EX_11_A.17 or higher. oppo a57 software update 7.0 download
Before clicking any download link, you must understand the terminology. There is massive confusion regarding the number "7.0" in the context of the Oppo A57. : Scroll down and select About Device or About Phone