Connect to a stable and ensure your battery is charged above 50%. Open Settings and scroll down to About device .
If your phone is "bricked" (stuck on the logo) or not receiving OTA updates, you may need to flash the firmware manually using a computer. OPPO A57S CPH2385 - GSM HOSTING FILES Firmware OPPO A57s
Major version updates (e.g., transitioning to newer versions of Android/ColorOS) often introduce fresh UI designs and enhanced privacy controls. How to Install Firmware Updates Connect to a stable and ensure your battery
This is the safest method and uses your phone’s built-in tools. tap Download and Install .
Tap on the or the version number at the top. If an update is available, tap Download and Install .