How To Use Secret Codes On Oppo A9 2020 Upd Updated [2026]

Opens a feedback menu where you can report issues like GPS lag or system bugs directly to OPPO. Quick Setup Guide Open Dialer : Access the Phone app on your home screen. Enter Code : Carefully type one of the codes above.

Using secret codes on your OPPO A9 2020 gives you diagnostic power usually reserved for repair technicians. Whether you need to test a faulty proximity sensor, check real battery voltage, force an OTA update, or retrieve your IMEI, these codes save time and effort. how to use secret codes on oppo a9 2020 upd

*#808# - Opens the manual hardware test interface. Opens a feedback menu where you can report

: Opens a technician-level menu for testing hardware components like the screen, cameras, vibration, and sensors. Using secret codes on your OPPO A9 2020

Avoid codes that imply wiping data (like *2767*3855# —though this rarely works on modern ColorOS) unless you have a full backup.