To execute these codes, you do not need a special application. Simply follow these steps: Open the Phone/Dialer app on your device.

Type the code exactly as shown, including the asterisks (*) and hash symbols (#).

In most cases, the hidden menu will launch automatically once the final # is entered. If it does not, press the Call button to trigger the command. Essential Codes for Galaxy A7 (2016) Functionality

The following codes are confirmed to work for the Galaxy A7 series and related 2016/2017 models for various diagnostic and informational purposes:

Unlock Hidden Features on Your Samsung Galaxy A7 with Secret Codes

Are you looking to unlock hidden features on your Samsung Galaxy A7? Look no further! Secret codes can help you access advanced settings, test your device's hardware, and even troubleshoot issues. In this post, we'll show you how to use secret codes on your Samsung Galaxy A7.

What are Secret Codes?

Secret codes, also known as dialer codes or Android codes, are special combinations of numbers and symbols that you can enter into your phone's dialer to access hidden features. These codes can vary depending on the device and manufacturer, but we've got you covered for the Samsung Galaxy A7.

How to Use Secret Codes on Samsung Galaxy A7

To use secret codes on your Samsung Galaxy A7, follow these steps:

1. Open the Phone App: Go to your phone's home screen and find the Phone app. Tap on it to open it.
2. Dial the Code: Use the keypad to dial the secret code. Make sure to enter the code correctly, as it's case-sensitive.
3. Press Call: Once you've entered the code, press the Call button.

Here are some Secret Codes for Samsung Galaxy A7:

1. #0#: This code opens the Service Mode menu, where you can test your device's hardware, such as the display, camera, and sensors.
2. *#06#: This code displays your device's IMEI (International Mobile Equipment Identity) number.
3. *#1234#: This code shows you the device's software information, including the firmware version and build number.
4. *#0228#: This code allows you to test your device's battery status and calibrate the battery.
5. *#0283#: This code opens the Packet Loopback menu, which tests your device's network connectivity.

More Codes:

• *#2663#: This code opens the TSP (Touch Screen Panel) test menu.
• *#147#: This code checks the device's firmware version.
• *#7780#: This code resets your device to its factory settings ( Warning: This will erase all data on your device).

Tips and Precautions:

• Be careful when using secret codes, as some codes can reset your device or erase data.
• Make sure to enter the codes correctly, as incorrect entries can cause issues.
• Some codes may not work on your device, depending on the firmware version or region.

Conclusion:

Secret codes can be a useful tool for Samsung Galaxy A7 users who want to unlock hidden features, test their device's hardware, or troubleshoot issues. By following these simple steps and using the codes listed above, you can take your device to the next level. Remember to exercise caution when using secret codes, and always back up your data before attempting any changes.

2 Work

To use secret codes on your Samsung Galaxy A72 Go to product viewer dialog for this item.

, simply open your Phone app, tap the Keypad tab, and dial the specific string of characters (like *#0*#). Most codes will execute automatically as soon as the final character is entered.  Essential Secret Codes for Samsung Galaxy A72  

These codes allow you to diagnose hardware, check device health, and view technical specifications. 

*#0*# — General Test Mode: This is the most comprehensive diagnostic tool. It allows you to test the LCD display, touch sensitivity, LED lights, vibration, and both front and back cameras.

*#06# — Device Identity: Instantly displays your phone's IMEI and Serial Number, which are essential if your phone is lost or for warranty verification.

*#0228# — Battery Status: Provides a detailed real-time look at battery voltage, temperature, and current charge level.

*#9900# — SysDump Menu: Used to manage system logs. A popular use is clicking "Delete dumpstate/logcat" to clear junk files and potentially improve performance.

*#1234# — Firmware Info: Shows your exact model number and firmware versions (AP, CP, and CSC).

*#2663# — Advanced Firmware: Accesses the firmware menu for Wi-Fi and the touch screen panel (TSP). You can use this to refresh Wi-Fi versions or update touch firmware.

*#0011# — Service Mode: Displays technical network information, including signal strength and SIM status.  Call and Privacy Settings 

These codes manage specific cellular features rather than device hardware.  Function  Hide Caller ID #31# (followed by the phone number) Check Call Waiting *#43# Check Call Forwarding *#67# Important Warnings  How to reset your Samsung Galaxy with 5 different methods

To use secret codes on your Samsung Galaxy A7 Go to product viewer dialog for this item.

(including 2016, 2017, or 2018 models), open the Phone app and enter the code directly into the dialer keypad. Most codes will execute automatically as soon as the last character is typed, while some may require you to press the Call button. Essential Samsung Galaxy A7 Secret Codes

These codes are frequently used for diagnostics and retrieving device information:

Note: Newer Samsung Galaxy A series phones (2020+) still support many of these codes, but some may not work depending on your carrier or Android version.

How to Properly Enter Secret Codes on the Galaxy A7

Before diving into the list, follow these critical steps to ensure codes work:

Step 1: Open the stock Phone dialer app (Samsung’s default green phone icon). Third-party dialers like Google Dialer often block secret codes.

Step 2: Type the code exactly as shown, including all *, #, and numbers. Do not press the call button unless instructed.

Step 3: Most codes launch automatically as soon as you type the final character (usually #). If nothing happens, press the green Call button once.

Step 4: If the screen flashes and nothing appears, the code is either blocked or unsupported on your specific firmware version.

Pro Tip: Turn off Wi-Fi Calling and VoLTE temporarily. Some carriers redirect USSD codes through their servers, breaking local secret codes.

Three Alternative Apps If Secret Codes Fail

If your Samsung Galaxy A7 rejects every code, you can still access similar information using trusted apps:

1. Phone INFO SAM (by vndnguyen) – Shows hidden menus, secret code generator, and hardware diagnostics without typing codes.
2. TestM (by Zoppe) – Free, open-source hardware tester for proximity, light sensors, and multitouch.
3. Samsung Band Selection (from Play Store) – Bypasses the need for *#0011# to switch LTE bands.

3. Battery & Usage Statistics

While Samsung’s settings menu shows battery usage, this code provides a deeper technical log.

• Code: *#0228#
• Function: Opens the BatteryStatus menu.
• Use Case: It displays voltage, temperature, and charging status. There is a "Quick Start" button here often used by technicians to calibrate the battery reading, though regular users rarely need it.

Step 1: Open the Phone Dialer

• Go to the Phone app (the green dialer icon).
• Make sure you’re on the keypad screen.

How to Use Secret Codes on Samsung Galaxy A7

Secret codes can give you quick access to hidden menus, testing features, and device info. Here's how to use them:

What if a code doesn’t work?

• Check that you typed it correctly (common mistake: missing * or #).
• Restart your phone and try again.
• Use an app like “Secret Codes” (from Play Store) to see which codes are available on your specific A7 model.

To use secret codes on your Samsung Galaxy A72 , simply open the

and type the code into the dial pad as if you were making a call. Most codes will execute automatically as soon as the last character (usually

) is entered, without you needing to press the "Call" button. Essential Secret Codes for Galaxy A72

These codes allow you to access hidden diagnostic menus and hardware information.

To use secret codes on your Samsung Galaxy A7 (including the 2018 model), you enter specific combinations of numbers and symbols directly into the Phone/Dialer app. These codes, often called MMI (Man-Machine Interface) codes, bypass the standard user interface to access hidden diagnostic menus, hardware tests, and system information. How to Enter Codes Open the Phone app. Tap the Keypad tab. Type the code exactly as shown (e.g., *#0*#).

Most codes will automatically execute as soon as you type the final #. If nothing happens, press the Call button. Essential Samsung Galaxy A7 Secret Codes Codes for SAMSUNG Galaxy A7 (2018) - HardReset.info

To use secret codes on the Samsung Galaxy A7 , you typically enter specific alphanumeric sequences into the phone's default Phone/Dialer app

. These codes, often called USSD or MMI codes, trigger hidden diagnostic menus and system information screens. How to Enter Secret Codes

Type the code exactly as it appears, including the asterisk (*) and hash (#) symbols. Most codes

will execute automatically as soon as the final symbol is entered. Some codes may require you to tap the button to process the request. Common Secret Codes for Samsung Galaxy A7

These codes are generally compatible with the Galaxy A series, including the A7.

This guide outlines how to use secret diagnostic and informational codes on your Samsung Galaxy A7 (2016, 2017, and 2018 versions)

. These codes, often called MMI or USSD codes, allow you to test hardware, check firmware, or troubleshoot system issues. How to Enter Secret Codes

To use these codes, you do not need special software. Simply: Phone (Dialer) Type the code exactly as written (e.g., The menu or information should appear automatically . If it doesn't, press the Essential Codes for Samsung Galaxy A7

These codes are verified to work across most Galaxy A7 models, including the A710 (2016) A720 (2017) A750 (2018) Secret Code Hardware Test Recommended.

Opens a full menu to test the screen (RGB), vibration, speakers, cameras, and sensors. IMEI Number Displays the device's unique identity and serial number. Battery Status Shows real-time voltage, capacity, and temperature. Firmware Info Displays current software versions (AP, CP, and CSC). Service Mode

Shows network status, signal strength, and cell information. USB Settings Change USB connection modes (MTP, ADB, etc.). System Dump

Used to delete log files and potentially speed up the phone. Advanced & Troubleshooting Codes