How To Use Secret Codes On Oppo A9 2020 Upd

Before you dive into exploring these codes, take a few minutes to back up your phone and read about each code’s function. Stick to informational codes unless you are confident in your technical knowledge. When used correctly, these hidden menus give you unprecedented visibility into your device’s health and performance—and can save you a trip to the service center for simple hardware checks.

*#800# — Opens the Log-kit for developers to capture logs for bug reports.

Whether you are looking to check your IMEI, run hardware diagnostic tests, or delve into the Engineer Mode, this guide will show you how to use these codes on your Oppo A9 2020 (including updated ColorOS versions). ⚠️ Important Precautions Before Starting how to use secret codes on oppo a9 2020 upd

: Shows information about your Calendar storage and upcoming events.

(like screen, battery, or network) with these codes, or just exploring your phone's settings ? Knowing this can help me provide more tailored advice. Share public link Before you dive into exploring these codes, take

If you are on a very new 2026 patch and codes are not working, it may be due to:

[*#899# Dialer Command] │ ├── [Manual Test Selection] ─── Screen / Touch Testing ├── [Automatic Diagnostics] ─── Pass / Fail Multi-Sensor Sweep ├── [Camera Validation] ─── Lens Array Focal Tests └── [GPS & Connectivity] ─── Real-Time Satellite Tracking *#800# — Opens the Log-kit for developers to

If you're having a specific issue (e.g., screen issue, battery drain, or network problem), let me know. I can tell you exactly which code to use to diagnose it. Share public link

. For most codes, the hidden menu will open automatically once you type the final symbol—you do not need to press the "Call" button. Prizm Institute Essential Secret Codes Secret Code Engineer / Service Mode IMEI Number Full Software Information Hardware Revision (PCB) Maximum SAR Level FCM Diagnostics *#*#426#*#* Calendar Info *#*#225#*#* Feedback/Bug Reporting Specific Hidden Menus Engineer Mode (