These codes allow you to check hardware health and system information:
These codes open advanced menus intended for developers and service personnel.
Secret codes are special numbers that, when dialed on your phone, open up hidden menus and allow you to access advanced features. These codes are usually not documented in the user manual or online resources, but they can be found through online forums, tech communities, and experimentation. Secret codes can be used to test hardware, diagnose issues, and even modify settings that are not available through the standard user interface. how to use secret codes on oppo a9 2020 upd
: Opens the factory test menu to check hardware like the screen, touch, and audio. *#6776#
Shows the Specific Absorption Rate (SAR) level, indicating the amount of radio frequency energy absorbed by your body. (Hardware Revision): These codes allow you to check hardware health
Some network service providers disable specific diagnostic codes. If a code fails to launch, your network carrier likely blocked it. To help narrow down any issues with your device, tell me:
Some secret codes can unlock hidden features on your Oppo A9 2020. For example: Secret codes can be used to test hardware,
This opens the developer feedback menu. You can use it to log system errors or report issues like battery drain and lag directly to OPPO. Summary Table of Codes Code to Dial What You See Check IMEI *#06# Phone ID numbers Hardware Test *#899# Screen, camera, vibration tests Software Info *#6776# ColorOS version and code base Mainboard Info *#888# Hardware revision number Radiation Check *#07# Maximum SAR safety limits Feedback Log *#800# Error reporting tool Safety Tips Before Using Secret Codes
It is important to note that the effectiveness of secret codes can vary depending on your phone's software version. The Oppo A9 2020 originally launched with Android 9 Pie with ColorOS 6.1, but many units have since received updates to Android 10 with ColorOS 7.
Displays PCB (mainboard) serial number and hardware revision.