Installing a custom ROM on the OPPO A5s (CPH1909) involves several critical steps to ensure it works properly. Because this device has a MediaTek Helio P35
Volume down + Power. The bright orange TWRP logo appeared. He made a full Nandroid backup (his lifeline) and wiped everything: Dalvik, System, Data, Cache. His phone was now a blank slate. oppo a5s custom rom download work
e/OS: A privacy-focused, unGoogled operating system; however, current support is limited to device requests rather than a stable official build. Installation Requirements Installing a custom ROM on the OPPO A5s
Customizing your Oppo A5s can make an old phone feel brand new. Whether you want the speed of LineageOS or the beauty of Pixel Experience, the choice is yours! If you want to move forward, let me know: Have you already unlocked your bootloader? Do you have TWRP recovery installed? He made a full Nandroid backup (his lifeline)