Samsung Secret Codes Guide: Complete List and Hidden Features

Introduction

Samsung Secret Codes are codes that are used to unlock the hidden features and diagnostic tools and advanced settings on Galaxy devices that are not found in the standard menu. You can check hardware of your phone, check IMEI information, run tests, or even clear cache on phone to have better performance with no more than a few taps on dialer. In case your phone is slowing down, certain codes also allow you to reboot phone fast, to work around minor glitches.

These codes can be very helpful in case the phone has some performance problems, requires any troubleshooting, or even in case you want to discover some hidden features. Nevertheless, they should be used with caution. Some codes may restart your phone or erase your phone. This guide will cover all the information related to Samsung secret codes, how they are used, and which of them can be tried nowadays.

What Are Samsung Secret Codes?

Samsung secret codes are special number codes that are normally typed in the dialer as usually commence with either *# or *#. After entering, they activate hidden functionality or display diagnostic menus. These codes are not like apps; they are designed as a part of the phone software and are primarily used by engineers and technicians to test.

They are of various types: there are a few that display device data, some of you can test hardware parts, and some codes can make resets or advanced network tests. Basically, they are a short cut to the most secretive tools on your phone.

Why Samsung Secret Codes Are Useful

There are many practical applications of Samsung secret codes. To the average user, they save time with direct access to features that would usually need service center support. As an example, you can test your touchscreen, speakers, vibration, or sensors in seconds by entering a diagnostic code.

They are also useful in verifying critical information like the IMEI number of your phone, the version of your firmware or the SIM lock status of your phone. When selling or purchasing an old phone, these codes would be a fast method of finding out if the phone is in good condition. For a step-by-step guide, see How to Check Original Samsung Phone.

A second common application is in troubleshooting. In case your phone is not working or performing correctly, then a test with these codes together with simple procedures like Clear Cache on Phone and Reboot Phone can clear up the problem most of the time.

How to Use Samsung Secret Codes Safely

Using these codes is simple. Open the dialer, enter the code as it is written, and press the call button. The phone will automatically perform the action associated with that code, be it showing information about the device or access to a hidden diagnostic menu.

Most of the codes are harmless, but there are certain codes that can reformat your device or destroy all data stored in it. This is why it is very important to know what a code is before applying it. Always save your data, clear your cache to get faster performance and restart your phone before trying the advanced codes.

The Most Popular Samsung Secret Codes

Samsung Screen Test Codes

The Samsung screen test code (#0#) is the most popular diagnostic tool. This gives you a complete testing menu with which you can test the display colors, brightness, dead pixels, and the general performance of the screen.

Samsung Touch Screen Test Code

In case your touchscreen is not working properly, the Samsung touch screen test code is very helpful. You can even execute a Samsung touch check code under the #0# diagnostic menu to check the responsiveness and precision of your phone touch input.

Samsung Display Check Code

Issues with the display such as flickering, dead pixels, or brightness can be identified quickly with the Samsung display check code (#0#). This test will verify that your screen is working as expected without the use of any external applications.

Samsung Mobile Check Codes

The Samsung mobile check code list includes basic codes like the IMEI code (like *#06#) and firmware version code (like *#123456). They are particularly essential in the process of verifying second-hand devices.

Samsung Secret Codes List 2025

Not all Samsung models may support some of these codes because of carrier limitations or firmware limitations. Always save data, Cache Data on phone and Reboot data phone and then use perilous reset codes.

Top 10 Samsung Secret Codes You Should Know

If you don’t want to go through the entire list, here are the most useful Samsung secret codes that work on most Galaxy models:

• *#06# → Check IMEI number instantly.
• *#0*# → Run a full diagnostic test (screen, sensors, vibration, etc.).
• *#1234# → See your device firmware version.
• *#1111# → View software version details.
• *#2222# → Display hardware version.
• *#0011# → Open service mode to check network details.
• *#7465625# → Check SIM lock status.
• *#2663# → Touchscreen test and version check.
• *#0289# → Test speaker and audio quality.
• *#7780# → Soft factory reset (removes apps & settings but keeps firmware).

Model and Region Differences

Samsung secret codes are not applicable to every model or location. As an example, carriers may disable some of the codes, and others are unique to Galaxies S, Note, or A series. Code functionality can also be changed by firmware updates. When one code fails, it does not always imply that your phone is defective, it might just be blocked in your Android version.

Real Examples of Using Secret Codes

Suppose you are purchasing a used Samsung phone. You can check the IMEI number, test the screen and verify the SIM lock status within minutes, but you do not have to simply trust the seller, you can secret codes to check the IMEI number.

Troubleshooting is another typical situation. In case your phone is slow or the apps crashed, you could perform a diagnostic test with a #0# to test hardware. This can be used with a Reboot Phone and a Clear Cache on Phone to make the phone run smoothly again, without necessarily having to do a factory reset.

What to Do If a Secret Code Doesn’t Work

A code can be unresponsive sometimes. This may be due to the fact that it is not supported on your device model, it is disabled by your carrier or your firmware version is not the same. A software update to your phone can fix the issue. Otherwise you may read through a different set of codes or you may use the official Samsung diagnostic applications.

Advantages and Disadvantages of Samsung Secret Codes

Advantages

Samsung secret codes will provide you with access to powerful tools without any third-party applications. They are quick, convenient and very helpful in troubleshooting and maintenance.

Disadvantages

There are codes that are risky when applied. Reset codes can destroy all data, and network codes are not always applicable to all devices. In extreme circumstances, the misuse of them may affect your warranty.

Conclusion

Powerful Samsung secret codes allow you to unlock the unseen features, test your gadget, and set troubleshooting. The Samsung screen test code and Samsung touch check code are just some of the shortcuts that allow one to test and find the problem without having to install external applications.

Always Clear Cache on Phone and Reboot Phone before testing them. When properly used, these codes can save you visits to service centers and maintain your Samsung Galaxy device in optimal performance.

Frequently Asked Questions