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

A powerful tool to log bugs related to GPS, lag, or network connectivity, allowing you to send detailed reports to Oppo.

Accessing these hidden menus requires no special software or root access. Open the default or Dialer app.

After a major update, Oppo often moves or hides functions. The is still *#899# . Bookmark it — it’s safe, shows battery health, touch accuracy, camera test, and storage info without risk. how to use secret codes on oppo a9 2020 upd

*#8778#

The runs on Qualcomm’s Snapdragon 665 processor layered with OPPO’s native ColorOS skin . Because of this software architecture, the device responds to universal Android codes alongside specialized, brand-specific instructions. If you want to check hardware integrity, audit software builds, or troubleshoot components, use this guide to navigate the hidden menus of the OPPO A9 2020. Master Compilation: Top OPPO A9 2020 Secret Codes Dial Pad Code Menu Type / Expected Action Engineer Mode / Factory Test Menu *#899# A powerful tool to log bugs related to

| Code | Function | |------|-----------| | *#06# | Show IMEI numbers (for device identification). | | *#888# | Show PCB / hardware version info (sometimes works on Oppo). | | *#1234# | Show software/firmware version. | | *#6776# | Full device information (model, build date, Android version). | | *#*#4636#*#* | Phone info, battery stats, usage statistics (Android standard). | | *#*#3646633#*#* | Engineer Mode (hardware testing for sensors, touch, display). | | *#*#6484#*#* | Hardware test (vibration, speaker, buttons, camera). | | *#*#232338#*#* | Show Wi-Fi MAC address. | | *#*#2664#*#* | Touch screen test. | | *#*#3264#*#* | RAM version info. | | *#*#225#*#* | Calendar & storage info (Google Calendar events). | | *#*#426#*#* | Google Play Services diagnostic (check GMS connection). |

. If you are experiencing technical issues, checking the HardReset.info Oppo A9 page for updated codes is recommended. If you'd like, I can: without codes. Explain how to use the Engineer Mode After a major update, Oppo often moves or hides functions

This code instantly displays your current firmware details. It shows the exact ColorOS version, baseband, and build number. This is highly useful when verifying if a new software update is available or successfully installed. 4. Detailed Product Information ( *#6776# )

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.

View battery health, temperature, and voltage. Part 4: Factory Reset and Hard Reset Codes