Unlock your Android phone’s hidden features by entering special MMI and USSD codes on the dial pad to access device information, test hardware, and adjust settings.
Before you start, ensure you have an Android device with the Phone app installed. Note that some codes may not work on all devices or carriers due to manufacturer restrictions or regional differences.
Certain codes, especially those for resets or wipes, can cause data loss or irreversible changes. Always back up your device first and use advanced codes at your own risk to avoid voiding warranties or damaging hardware.
To access hidden Android features with MMI codes, follow these instructions to enter and use MMI codes effectively on your Android device.
First, open the Phone app on your Android device and tap the dial pad icon if it’s not already visible. Then, enter the desired MMI code exactly as listed, starting with an asterisk (*) where applicable. Press the Call button or the send icon, just as you would to make a phone call, to execute the code. Review the results that appear on screen; some codes display information immediately, while others open menus or toggle features. Note any errors; if a code doesn’t work, it may be incompatible with your device model or carrier.
Some common MMI codes include displaying your phone’s IMEI number by entering *#06#. To display information about your phone and its usage, enter *#*#4636#*#*. To display your phone’s MAC address, enter *#*#232338#*#*. You can toggle sending your Caller ID on or off by entering *31# to enable or #31# to disable. To toggle Call Waiting on or off, enter *43# to enable or #43# to disable.
Troubleshooting codes can be used to test various hardware components. For example, to test your Wi-Fi, enter *#*#232339#*#*. To test your GPS, enter *#*#1472365#*#*. To test Bluetooth, enter *#*#232331#*#*. To check battery status, enter *#0228#. To test your touchscreen, enter *#*#2664#*#*. To test vibration and backlight, enter *#*#0842#*#*. To test the light sensor, enter *#0589#. To test the proximity sensor, enter *#*#0588#*#*. To test audio and melody, enter *#*#0673#*#* or *#*#0289#*#*. To test the real-time clock, enter #0782#*. To perform a packet loopback test, enter *#*#0283#*#*. To run a Google Play service diagnostic, enter *#*#426#*#*. To run a Field test, enter *#*#7262626#*#*. For Quick Test Mode, enter *#7353#. For General Test Mode, enter *#0*#.
Device information codes can be used to display various details about your device. To display your phone’s IMEI number, enter *#06#. To display information about your phone, enter *#*#4636#*#*. To display your phone’s MAC address, enter *#*#232338#*#*. To display device lock status, enter *#7465625#. To display system and storage information, enter *#3282*727336#. To display your firmware version, enter *#*#4986*2650468#*#*. To display your local network information, enter *3001#12345#*. To display your touchscreen version, enter *#*#2663#*#*. To display your device’s build time and change list number, enter *#*#44336#*#*. To display your camera firmware information, enter *#*#34971539#*#*. To display your Bluetooth address, enter *#*#232337#*#*. To display your RAM version, enter *#*#3264#*#*. To display your SMS message center number, enter *5005*7672#. To display calendar storage information, enter *#*#225#*#*. To get your billing information, enter *3282#.
Codes can also be used to change your settings. To change your phone’s power mode, enter *#*#7594#*#*. To change your phone’s RF band, enter *#2263#. To display Call Forwarding, enter *#67#. To turn Call Waiting on, enter *43#; to turn it off, enter #43#. To turn Caller ID on, enter *31#; to turn it off, enter #31#. To access 12C mode control, enter *#7284#.
Advanced diagnostic codes can be used for more in-depth troubleshooting. To display diagnostic configuration, enter *#9090#. To access System Dump mode, enter *#9900#. To display RIL DUMP menu, enter *#745#. For Debug Dump Mode, enter *#746#. To display USB Logging Settings, enter *#872564#. To display EPST menu, enter ##778. To display FTA software version, enter *#*#1111#*#* or *#*#2222#*#*. To display GFC mode status, enter *#3214789#. To display NAND Flash serial number, enter *#03#.
Backup and reset codes should be used with caution. To power off your device, enter *#*#7594#*#*. Warning: This immediately shuts down the phone. To back up your device, enter *#*#273282*255*663282*#*#*. To perform a factory reset, enter *#*#7780#*#*. Warning: This erases all data and cannot be undone. To wipe your device and reinstall the firmware, enter *2767*3855#. Warning: This is extremely risky and may brick your device; use only as a last resort.
Always document the output from diagnostic codes, as they can provide valuable insights for troubleshooting issues with your carrier or device manufacturer support.
Mastering MMI and USSD codes empowers you to diagnose problems quickly without relying on external tools or apps, saving time and frustration during device issues. These codes reveal hidden details like IMEI for security checks or hardware tests to identify faults early, preventing bigger problems down the line. For tech enthusiasts, they offer a deeper understanding of Android’s inner workings, enhancing customization and optimization. Overall, incorporating these codes into your routine maintenance can extend your device’s lifespan and improve performance.
Beyond troubleshooting, these codes facilitate quick settings adjustments, such as toggling Caller ID or Call Waiting, which streamline communication without navigating complex menus. In professional settings, accessing firmware or network info can aid IT support or compliance checks. By familiarizing yourself with them, you gain independence from manufacturer restrictions, fostering a more proactive approach to mobile management. This knowledge ultimately leads to a smoother, more efficient user experience on your Android device.
