All Mobile Hardware Check Codes List [2026] - Secret Test Codes for Samsung, Xiaomi, Vivo, Oppo.. ~ Shri Telecom

All Mobile Hardware Check Codes List [2026] - Secret Test Codes for Samsung, Xiaomi, Vivo, Oppo..

When buying a secondhand phone or testing your current smartphone after a repair, checking the hardware components like the display, touch sensitivity, speaker, and sensors is very important. Did you know that every smartphone brand has a secret hardware check code?

In this post, we have shared the complete list of All Mobile Hardware Check Codes for top brands like Samsung, Xiaomi, Vivo, Oppo, OnePlus, and more. By dialing these secret USSD codes, you can instantly open the hardware diagnostic test menu on your phone.

All Mobile Hardware Secret Test Codes List

Here is the quick reference table for secret hardware test codes of all popular smartphone brands.

No.Brand NameHardware Check Code (Secret Code)

1 SAMSUNG #0#

2 XIAOMI / MI / REDMI ##6484##

3 VIVO ##225##

4 OPPO *#899#

5 ONEPLUS ##2346579##\

6 HONOR ##2345##

7 LENOVO ##4636##

8 SONY ##7378423##

9 MOTOROLA ##2486##

10 HUAWEI ##2846579##

11 ALCATEL *##2886# (For older models only)

How to Use These Hardware Test Codes?

Using these secret diagnostic codes is very simple. Just follow these steps:

Open the default Phone/Dialer app on your mobile device. Carefully type the exact code mentioned above for your specific brand.

Once you type the last symbol (usually # or *) a secret hardware testing screen will automatically pop up.

Now, you can individually test your Phone's Display (RGB), Touchscreen, Vibration, Cameras, Speaker, and Sensors.

Note: Some carrier-locked phones or devices running on highly customized network firmware might disable these codes. If a code doesn't work, make sure your phone's software is updated.

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