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

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

To use secret codes on your Samsung Galaxy A72 , simply open the how+to+use+secret+codes+on+samsung+galaxy+a7+2+work

If you dial a code and nothing happens, it is usually due to one of three reasons: Auto Blocker:

) is entered, without you needing to press the "Call" button. Essential Secret Codes for Galaxy A72 This guide outlines how to use secret diagnostic

Carrier Restrictions: Some network providers (like Verizon or AT&T) disable certain USSD codes to prevent users from altering network settings.

Using these codes is straightforward and does not require rooting your device or specialized technical knowledge. Open the Phone app (the dialer) on your Samsung Galaxy A7. Tap on the Keypad tab. Type the code exactly as it appears (e.g., *#0*#). Open the Phone app (the dialer) on your Samsung Galaxy A7

Service Mode (*#0011#): Provides real-time network information such as signal strength and band.