How To Use Secret Codes On Oppo A9 2020 Upd Jun 2026

Displays PCB (mainboard) serial number and hardware revision.

| Code | Function | Notes / What You'll See | | :--- | :--- | :--- | | | IMEI Number | Displays the unique 15-digit serial number for your phone, essential for network identification and warranty claims. | | *#6776# | Software Information | Shows in-depth software details, including your current Android version, kernel version, ColorOS version, and security patch date. | | *#1234# | Firmware Version | Displays the firmware build number and other related info. | | *#888# | PCB Number | Shows the serial number of your phone's mainboard (PCB), often used for service and repair. | | *#07# | SAR Level | Displays the Specific Absorption Rate value, indicating the amount of radio frequency energy absorbed by the body when using the phone. | | *#*#225#*#* | Calendar Events | Shows a list of festivities and events saved in your calendar. | how to use secret codes on oppo a9 2020 upd

Watch this step-by-step guide to see these codes in action and learn how to navigate the hidden service menus safely: 02:06 Displays PCB (mainboard) serial number and hardware revision

Your mobile operator may block specific MMI codes. | | *#1234# | Firmware Version | Displays

: Enters an automated TTFF (Time to First Fix) test for GPS.

Type the specific code sequence exactly as listed (usually starting with *# and ending with # ).