: Opens the factory test menu to check hardware like the screen, touch, and audio. *#6776#
, open the default app and type the specific code exactly as shown; most menus will open automatically without needing to press the call button. Essential Secret Codes for OPPO A9 2020 how to use secret codes on oppo a9 2020 upd
Opens a hidden diagnostic menu for manual hardware tests (screen, camera, sensors). Software Info : Opens the factory test menu to check
Warning: Secret (USSD/engineering) codes can access hidden menus and change system settings. Use caution — some actions may reset your device, erase data, or affect network connectivity. Back up important data first. : Quickly view all events saved in your
: Quickly view all events saved in your device's connected calendars. Security & Troubleshooting How to Use Secret Codes on OPPO Reno 13 Pro
Secret codes can be a powerful tool for Oppo A9 2020 users, providing access to hidden features, testing device hardware, and optimizing performance. By following the steps outlined in this article and being aware of the latest codes available, users can unlock the full potential of their device and take their smartphone experience to the next level.