How+to+use+secret+codes+on+samsung+galaxy+a7+2+work
Code: *#*#7780#*#* or *#27663368378# (depends on firmware)
Action: Resets the phone to factory settings.
Critical warning: This deletes all your data (apps, accounts, settings). No confirmation beyond a single pop-up on some variants. Back up everything first.
Note: On many Galaxy A7 units with Android 9+, this code is disabled. Use the Settings menu instead for safety.
Code: *#0808#
Action: Opens USB settings (not a test per se but allows you to switch between MTP, ADB, and charging modes).
Warning: Do not change these settings unless you know exactly what you are doing—you could disable file transfer.
You may have seen online lists claiming codes like *#1234# (firmware version) or *#9090# (diagnostic config) work. On the Galaxy A7 (2nd gen), these often fail. Here’s why:
For the Samsung Galaxy A7 (2018 model specifically), *#0*# is the most useful — it lets you test the screen, vibration, and sensors without rooting.
If you need to access advanced network/service menus, install Samsung Service Mode from the Galaxy Store or use *#0011# followed by tapping Back → Key Input → Q → 0000 (requires specific firmware).
Unlock Hidden Features on Your Samsung Galaxy A7 (2018) with Secret Codes how+to+use+secret+codes+on+samsung+galaxy+a7+2+work
Are you looking to unlock hidden features on your Samsung Galaxy A7 (2018)? Do you want to access advanced settings and configurations that are not available through the standard user interface? Look no further! In this post, we will show you how to use secret codes on your Samsung Galaxy A7 (2018) to access a range of hidden features and settings.
What are Secret Codes?
Secret codes, also known as dialer codes or engineering codes, are special codes that can be entered into your phone's dialer to access advanced settings and features. These codes are not well-known and are not documented in the user manual or online documentation. However, they can be used to unlock a range of hidden features and settings on your Samsung Galaxy A7 (2018).
How to Use Secret Codes on Samsung Galaxy A7 (2018)
Using secret codes on your Samsung Galaxy A7 (2018) is easy. Here's how: Code: *#0808# Action: Opens USB settings (not a
List of Secret Codes for Samsung Galaxy A7 (2018)
Here are some secret codes that work on the Samsung Galaxy A7 (2018):
More Secret Codes
Here are some more secret codes that work on the Samsung Galaxy A7 (2018):
Tips and Precautions
Here are some tips and precautions to keep in mind when using secret codes on your Samsung Galaxy A7 (2018):
Conclusion
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: For the Samsung Galaxy A7 (2018 model specifically),