How To Use Secret Codes On Oppo A9 2020 Upd Fix Guide

: Use this to view the PCB (mainboard) serial number and hardware revision of your device.

: Provides deep details including Android version, kernel version, ColorOS version, and build branch. how to use secret codes on oppo a9 2020 upd

: Accesses detailed usage statistics, battery status, and Wi-Fi configuration. : Use this to view the PCB (mainboard)