How+to+use+secret+codes+on+samsung+galaxy+a7+2+work //top\\ (OFFICIAL)
| Code | Function | |------|-----------| | *#0*# | Hardware test menu (LCD, touch, sensors, camera, etc.) | | *#0011# | Service mode (signal strength, network info) | | *#0228# | Battery status (voltage, temperature) | | *#0808# | USB settings (MTP, ADB, etc.) | | *#1234# | Show firmware version (AP, CP, CSC) | | *#12580*369# | Software/hardware info | | *#2663# | Touchscreen firmware version | | *#34971539# | Camera firmware details | | *#7353# | Quick test menu (speaker, mic, vibration) | | *#9900# | System dump & log menu (advanced) |
), do not change values unless you are a technician, as this can disable your cellular connection. Before using codes like
, the integrated default dialer must be utilized. Third-party calling apps downloaded from the Google Play Store cannot initialize system-level MMI codes.
Tests the physical hardware keys (Volume, Power, Home) by changing the screen color when pressed. 2. Firmware and Hardware Information
Type the code exactly as shown, including the asterisks ( * ) and hash symbols ( # ). how+to+use+secret+codes+on+samsung+galaxy+a7+2+work
, simply open your 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
Secret codes (USSD/MMI codes) are keypad entries that launch hidden menus for testing hardware, checking device stats, or resetting certain settings.
: A simplified version of the general test mode for quickly checking the speaker, vibration, and basic sensors. Device Identification & Information (IMEI/Serial Number)
Getting secret codes to function requires zero modifications or third-party applications. Follow these steps: | Code | Function | |------|-----------| | *#0*#
Using these codes is remarkably simple, as they don't require any special apps or root access.
The Samsung Galaxy A7 (2018) is a capable device, and these secret codes unlock a deeper level of interaction with its hardware and software. From a simple IMEI check ( *#06# ) to a comprehensive hardware diagnostic ( *#0*# ), these tools put the power of a technician in your pocket. However, with great power comes great responsibility. Always treat factory reset codes with respect and ensure you have backups before diving into unknown territory. Use these codes wisely to better understand, maintain, and troubleshoot your Samsung Galaxy A7.
Most system-level secret codes execute automatically the moment you type the final # . If a code does not launch automatically, it is either unsupported by your specific firmware version or it is a carrier-specific USSD code that does require pressing the Call button. Most Useful Secret Codes for Samsung Galaxy A7
This button can sometimes reset the battery gauge if it is miscalibrated, though it should be used sparingly as it can temporarily cause erratic percentage readings. 📱 Device Information Tests the physical hardware keys (Volume, Power, Home)
To use secret codes on your Samsung Galaxy A72 , simply open the
If you enter a code and nothing happens, troubleshoot with these steps:
Secret codes are special sequences (like *#0*# ) you type into your phone's dialer. This is why you must use Samsung's pre-installed Phone app; third-party dialers might not recognize them.
The Samsung Galaxy A7 has multiple model numbers depending on the release year (e.g., A700, A710, A720, A750) and region (Global, US, Asian variants). A code that works flawlessly on an Exynos-powered international model might fail on a Snapdragon-powered regional model. Alternative Method: Using Third-Party Diagnostic Apps
For a user, these codes offer a fast track to:
