How To Use Secret Codes On Oppo A12e [hot] Jun 2026

: View comprehensive info like your Android version, ColorOS build, kernel version, and PCB (mainboard) number.

The OPPO A12e is a reliable budget-friendly smartphone known for its durability, large battery, and smooth performance for daily tasks. However, like most Android smartphones running ColorOS, your OPPO A12e holds a hidden layer of functionality beneath its polished interface. This layer is accessed through (often called "secret codes" or "engineering codes"). How to Use Secret Codes on OPPO A12e

. These codes trigger hidden menus and diagnostic tools that are usually unavailable through the standard settings menu. How to Enter Secret Codes app (the dialer) on your OPPO A12e. Type the desired code exactly as it appears (e.g., In most cases, the hidden menu or information will appear automatically as soon as you type the final symbol (usually If the menu does not appear automatically, press the Green Call button to execute the code. Key Secret Codes for OPPO A12e : View comprehensive info like your Android version,

In about 1 second, the Manual Test menu will appear automatically. This layer is accessed through (often called "secret

– Full Calibration & Test Menu. Use this to re-calibrate your proximity sensor, light sensor, G-sensor (accelerometer), and compass. Tip: If your screen stays black during calls, run this and calibrate the proximity sensor.