How To Use Secret Codes On Oppo A9 2020 Upd -

To use secret codes on your OPPO A9 2020 Phone (Dialer) app and type the code exactly as shown

*#899# - Opens the main diagnostic menu for manual hardware tests. how to use secret codes on oppo a9 2020 upd

These codes allow you to check hardware health and system information: To use secret codes on your OPPO A9

– Firmware Version: Displays the current software version (ColorOS build) installed on your device. *#888# – PCB Number: Shows the Hardware Revision Version. how to use secret codes on oppo a9 2020 upd

: Shows the PCB (mainboard) serial number and hardware version.