How To Use Secret Codes On Oppo A83 Pro Page

How to Use Secret Codes on OPPO A83 Pro The OPPO A83 Pro, a popular budget-friendly smartphone from the 2018 era, runs on ColorOS (based on Android). Like most Android devices, it supports a variety of USSD codes (often called "secret codes" or "engineering codes") that allow users to access hidden menus, test hardware functions, retrieve device information, and perform quick diagnostics. These codes can be incredibly useful for checking your IMEI number, running hardware tests (display, touch, camera), or even resetting the device. Important Precautions Before Using Secret Codes

Do not guess or randomly modify values in engineering mode (Engineer Menu / Engineer Mode). Changing settings there can permanently damage your phone’s hardware or void your warranty. Backup your data before using codes that involve resets (e.g., *#*#7780#*#* ). Some codes may not work if your carrier or custom ROM has disabled them.

How to Enter Secret Codes Simply open your Phone Dialer app (the same keypad you use to call someone) and type the code exactly as shown. Most codes will execute automatically as soon as you type the last character. For some, you may need to press the call/dial button .

Most Useful Secret Codes for OPPO A83 Pro 1. Display IMEI Information Code: *#06# What it does: Instantly displays your device’s IMEI (International Mobile Equipment Identity) numbers. Useful for reporting a lost/stolen phone or checking network compatibility. 2. General Hardware & Software Test Menu Code: *#899# What it does: Opens a hidden OPPO-specific manual test menu. From here, you can test: How to Use Secret Codes on OPPO A83 Pro

Display colors & backlight Touchscreen sensitivity Speaker & earpiece Microphone & headset jack Vibration motor Cameras (front & rear) Sensors (accelerometer, proximity, light)

3. Engineer Mode (MTK Engineering Menu) Code: *#*#3646633#*#* What it does: Opens the MediaTek Engineer Mode (since OPPO A83 Pro uses a MediaTek processor). Warning: This is for advanced users. You can adjust RF settings, Wi-Fi, Bluetooth, audio levels, and hardware calibration. Do not change anything unless you are sure. 4. Factory Data Reset (Caution!) Code: *#*#7780#*#* What it does: Resets the phone to factory settings – removes all Google accounts, app data, and settings. Your photos, music, and files on internal storage may remain , but it’s safer to back up everything first. 5. Full Factory Reset (Format) Code: *#*#8778#*#* or *#8778# (depending on firmware) What it does: A more thorough reset that may wipe internal storage as well. Use only if you are selling the phone or fixing major software glitches. 6. Quick Hardware Test (Version Info) Code: *#*#4636#*#* What it does: Opens a testing menu showing:

Phone information (signal strength, network type) Battery information (level, temperature, voltage) Usage statistics Wi-Fi information How to Use Secret Codes on OPPO A83

7. Proximity & Light Sensor Test Code: *#*#0588#*#* What it does: Quickly tests the proximity sensor (used during calls to turn off the screen). 8. Audio Loopback Test Code: *#*#0289#*#* What it does: Runs a speaker and microphone test. The phone will play a melody and record via the mic to check both. 9. GPS Test Code: *#*#1575#*#* What it does: Opens a GPS test menu showing satellite lock and signal strength.

Codes That May NOT Work on OPPO A83 Pro Some standard Android codes are often blocked by OPPO’s ColorOS:

*2767*3855# (Full factory reset – usually disabled) *#0*# (Samsung-style hardware test – OPPO uses *#899# instead) ##778## (EPST – Qualcomm-only; not applicable for MediaTek) Important Precautions Before Using Secret Codes Do not

If a code does nothing, your OPPO firmware likely disabled it for security reasons. Final Tips

Write down your IMEI ( *#06# ) before any reset or service visit. Use *#899# for daily diagnostics – it’s the safest and most useful menu for OPPO users. Never share your IMEI with untrusted sources. If you accidentally enter the Engineer Menu, simply restart your phone to exit without saving changes.