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Accessing secret codes (also known as MMI or USSD codes) on a Samsung Galaxy A7 (2018) Go to product viewer dialog for this item.

Phone/Dialer

To execute these codes, you do not need a special application. Simply follow these steps: Open the app on your device. how+to+use+secret+codes+on+samsung+galaxy+a7+2+work

Troubleshooting: "My Secret Code Doesn't Open Anything"

*#06#: This code displays the IMEI (International Mobile Equipment Identity) number of your Samsung Galaxy A7.
#0#: This code opens the service menu on your Samsung Galaxy A7. From here, you can access various settings and features, such as the phone's display, speaker, and vibration settings.
*#1234#: This code displays information about your Samsung Galaxy A7's software, including the phone's firmware version and build number.
*#2663#: This code opens the firmware update menu on your Samsung Galaxy A7.
*#3282#: This code opens the system info menu on your Samsung Galaxy A7, where you can view information about your phone's hardware and software.

*#06# - IMEI Number

Thinking about battery life, she explored *#0228# which showed battery status and voltage. It wasn’t a replacement for a proper battery health app, but it gave her quick voltage info. For a deeper look at network connections, she used *#0011# to view service mode details — helpful when troubleshooting flaky mobile data. Accessing secret codes (also known as MMI or

Carrier restrictions – Some carriers block secret codes, especially on locked phones.
Android version – On newer Android (10+), certain codes may no longer work.
No dial button needed – Just type the code. If you press call, it will try to make an actual call instead of opening the menu.
Be careful – Some codes (like factory reset or RF test) can change settings. Only use codes you understand.

*#0011# — Service Mode:

Displays technical network information, including signal strength and SIM status. Call and Privacy Settings * #06# : This code displays the IMEI