That evening she organized what she’d learned into a short list on her phone:
When you type these codes into the phone dialer, they trigger specific actions without requiring root access or third-party software. They are generally categorized into:
These codes allow you to access hidden diagnostic menus and hardware information.
, I can walk you through the exact diagnostic steps for that problem. Would you like to know how to interpret the results of a specific test? how+to+use+secret+codes+on+samsung+galaxy+a7+2+work
Shows network status, signal strength, and cell information. USB Settings Change USB connection modes (MTP, ADB, etc.). System Dump
without knowing their function can disrupt your phone's connectivity or performance. factory reset using physical buttons if the screen is unresponsive? Samsung Codes List: All Secret & Diagnostic Codes (2026)
: Opens a menu where you can delete log files (dumpstate/logcat) to free up system memory. *#7353# That evening she organized what she’d learned into
Open the stock Phone dialer app (Samsung’s default green phone icon). Third-party dialers like Google Dialer often block secret codes.
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
| Secret Code 📲 | What It Does ⚙️ | Category 🏷️ | | :--- | :--- | :--- | | *#06# | Displays your device's unique IMEI (International Mobile Equipment Identity) and Serial Number. This is the most universal code and works on any phone. | Device & System Information | | *#1234# | Shows your phone's current software version information (AP, CP, CSC, Modem). | Device & System Information | | *#12580*369# | Provides a detailed summary of software, hardware info, and the phone's manufacturing date. | Device & System Information | | *#2222# | Displays the hardware revision version of your device. | Device & System Information | | *#0*# | The ultimate hardware test menu. It allows you to check the screen, vibration, sensors, speakers, cameras, and more all in one place. | Hardware Diagnostics | | *#7353# | A quick test menu specifically for the earpiece, vibration, loud speaker, camera, and sensors. | Hardware Diagnostics | | *#0011# | Opens the Service Mode, which gives you detailed information about your network connection and cell tower info. | Network Information | | *#0228# | Opens the battery status menu, where you can see the current voltage, temperature, and overall battery health. It also includes a "quick battery test" option. | Battery & Power | | *#34971539# | Brings up a menu with detailed information about your phone's camera, including its firmware version. | Camera Info | | *#0808# | Allows you to change the USB settings of your device (e.g., MTP, ADB, Mass Storage) to control how it's recognized when plugged into a computer. | System & Connectivity | | *#0283# | Launches an audio loopback test to check the functionality of your device's microphone and speaker. | System & Connectivity | | *#9900# | Opens the SysDump mode, which is used to clear system logs and run various system diagnostics. Be cautious in this menu as it has system-level functions. | System & Connectivity | Would you like to know how to interpret
Launches the complete hardware diagnostic menu (screen colors, touch panel, receiver, vibration, and cameras). *#06#
Changes how your phone behaves when connected to a computer via USB (USB settings, MTP, ADB, etc.). Tests your loudspeaker, receiver, and headphone jack. *#0589# - Light Sensor Test Tests the ambient light sensor. 2. Device Information & Software *#06# - Show IMEI
: This is the most comprehensive diagnostic menu. Use it to test: : Check for dead pixels using Red, Green, and Blue screens.
If a code fails to launch, it is usually because
Type the secret code, which typically starts with a * or # and ends with # .