How To Use Secret Codes On Oppo A12e ✦ Fully Tested
In most cases, the hidden menu will appear as soon as the last symbol is entered.
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").
– Opens the Engineering Mode (also known as Manual Test or Device Debugging). This is the most versatile code. From here, you can test: How to Use Secret Codes on OPPO A12e
| Purpose | Code | |---------|------| | (unique device ID) | *#06# | | Device & Usage Stats (battery, Wi-Fi, etc.) | *#*#4636#*#* | | Battery Info & Health (voltage, temp) | *#*#4636#*#* → Battery info | | Test Hardware (screen, vibration, camera) | *#899# | | Engineering Mode (advanced system tests) | *#*#3646633#*#* | | Factory Data Reset (⚠️ wipes all data) | *#8778# | | Backup & Reset Menu | *#*#7780#*#* | | Display Touchscreen Test | *#*#2664#*#* | | Camera Test | *#*#34971539#*#* | | Audio Loopback Test | *#*#0283#*#* | | FTA (Field Test Application) Info | *#*#232338#*#* |
This is a standard Android code that works on the OPPO A12e. It provides a simple, clean interface for general device information. In most cases, the hidden menu will appear
Opens the to report issues with GPS, lag, or other system modules. *#8778#
In this menu, you can often find a "Touch" button. Tapping it allows you to draw lines across the screen to ensure This layer is accessed through (often called "secret
Most of these codes are read-only or perform simple tests. However, some codes (like factory reset or NV rebuilding) can erase your data or damage your phone’s firmware. Do not run codes you do not fully understand. We recommend backing up your data before experimenting.
Tap the keypad icon if it doesn’t automatically appear.
– GPS test mode. Not inherently dangerous, but changing the NTP server or cold-start settings can make GPS slow or inaccurate.
– Charging Tester. Plug in your charger while this menu is open to see real-time voltage and current (mA) being drawn. Use this to test if your charger or cable is failing.