Understanding and utilizing MMI (Man-Machine Interface) and USSD (Unstructured Supplementary Service Data) codes can significantly enhance your experience with Android devices. These codes unlock hidden features, provide quick access to essential information, and assist in troubleshooting. In this article, we delve into various MMI and USSD codes, their uses, and how they can benefit Android users.
Common MMI Codes for Android (Categorized)
| Function | Code | Description |
|---|---|---|
| Device Information | *#06# | Displays device IMEI number |
| ##4636## | Displays phone information, usage statistics, and settings | |
| ##225## | Displays calendar information | |
| ##49862650468##* | Displays phone firmware information | |
| ##1111## | Displays FTA software version | |
| ##2222## | Displays FTA hardware version | |
| ##232337#*# | Displays Bluetooth device address | |
| ##232338## | Displays Wi-Fi MAC address | |
| *#07# | Displays SAR values and regulatory labels | |
| Testing | ##2664## | Touchscreen testing |
| ##0842## | Vibration and backlight test | |
| ##232339## | Wi-Fi network test | |
| ##0588## | Proximity sensor test | |
| ##1472365## | GPS test | |
| Settings | ##7594## | Change power button behavior |
| ##426## | Google Play Services diagnostic | |
| ##197328640## | Service mode | |
| ##34971539## | Camera firmware information | |
| #3282727336*# | Data usage information | |
| *#3282# | Billing information | |
| Reset | 27673855# | Wipe device and reinstall firmware (use with extreme caution) |
| ##7780## | Factory reset | |
| Carrier-Specific Codes | *#31# | Hide caller ID |
| *#43# | Activate call waiting | |
| *#67# | Check call forwarding status | |
| *#30# | Display caller ID | |
| Engineering Mode | ##2486## | Engineering mode (Motorola) |
| *#888# | Engineering mode (OnePlus) | |
| Samsung-Specific Codes | #0# | Open hardware diagnostic |
| *#0228# | Display battery information | |
| *#0808# | USB settings | |
| *#9090# | Advanced debugging tools |
Important notes:
- Not all codes work on all devices: Compatibility depends on device manufacturer and Android version.
- Use with caution: Some codes can cause data loss or other unintended consequences.
- Research before use: Consult device documentation or online resources for specific information about codes and their effects.
- Carrier-specific codes: Additional codes may be available from your cellular carrier.
- Samsung-specific codes: These codes are for Samsung devices only.
Key Takeaways
- Access Hidden Features: Unlock hidden settings and features on your Android device.
- Troubleshooting: Diagnose and solve common issues using specific codes.
- Ease of Use: Quickly access important information without navigating through settings.
- Device-Specific Codes: Some codes are universal, while others may work only on certain brands or models.
Types and Usage of MMI and USSD Codes
Understanding MMI and USSD Codes
- MMI Codes: These are specific to smartphone manufacturers and allow access to hidden settings menus.
- USSD Codes: Used by mobile carriers, these require a network connection and provide carrier-specific information.
How to Run These Codes
To use these codes, simply open the phone dialer and enter the code. Most will run automatically upon entering the final character, while some might require pressing the call button.
Essential MMI and USSD Codes for Android
General Android MMI and USSD Codes
- Check IMEI Number:
*#06# - Display Phone Information:
*#*#4636#*#* - GPS System Test:
*#*#1472365#*#* - Touchscreen Test:
*#*#2664#*#* - Wi-Fi Test:
*#*#232339#*#* - General Test Mode:
*#0*# - Service Mode:
*#*#197328640#*#* - Calendar Storage Data:
*#*#225#*#* - Smartphone Battery Info:
*#*#4636#*#* - Firmware Information:
*#*#4986*2650468#*#* - Caller ID Toggle:
*31# - Call Waiting:
*43# - Check Call Forwarding:
*#67# - Camera Information:
*#*#34971539#*#* - System and Storage Details:
*#3282*727336*# - MAC Address Display:
*#*#232338#*#* - Google Play Services Info:
*#*#426#*#* - Local Network Information:
*3001#12345#* - SMS Message Center Number:
5005*7672# - Shut Down Device:
*#*#7594#*#* - Factory Reset:
*#*#7780#*#* - Firmware Reinstallation:
*2767*3855#
Practical Applications and User Experiences
Real-World Scenarios
- Lost or Stolen Device: Use the IMEI code
*#06#to block a stolen phone. - Troubleshooting GPS Issues: Conduct a GPS test with
*#*#1472365#*#*to determine if problems are hardware or software-related. - Battery Analysis: Use
*#*#4636#*#*to monitor battery performance and plan replacements or upgrades.
Additional Secret Codes for Specific Brands
Samsung and Other Brands
- Proximity Sensor Test:
*#0588# - Hardware Diagnostic:
*#0*#(Samsung specific) - Engineering Mode:
*#888#(OnePlus specific) - Camera Info:
*#34971539#(Samsung specific)
iPhone MMI Codes (For Reference)
- Field Mode:
*3001#12345#* - Call Forwarding:
*#67# - Call Minutes:
*646#(Postpaid) - Account Balance:
*777#(Prepaid)
Device-Specific Limitations
While many MMI and USSD codes are universal, some are brand or model-specific. Always check compatibility with your device before using these codes.
FAQs
Q: Are MMI and USSD codes safe to use? A: Yes, these codes are safe but should be used with caution. Avoid using codes that you are unfamiliar with or that might lead to data loss.
Q: Can these codes unlock new features on my phone? A: Yes, some codes can unlock hidden features or provide quick access to certain settings.
Q: Will these codes work on any Android phone? A: While many codes are universal, some may only work on specific models or brands. Always check your device’s compatibility.
Q: Are there equivalent codes for iPhones? A: iPhones do have similar codes for certain functions, but not all Android codes will work on iOS devices.
Q: Can using these codes void my warranty? A: Generally, using these codes does not void your warranty, but it is advisable to use them responsibly and understand their functions.
Tables with Relevant Facts
| Code | Function | Compatibility |
|---|---|---|
*#06# | Check IMEI | Universal |
*#*#4636#*#* | Phone Info | Universal |
*#*#1472365#*#* | GPS Test | Universal |
*#*#2664#*#* | Touchscreen Test | Universal |
*#0*# | General Test Mode | Samsung |
*#*#197328640#*#* | Service Mode | Universal |
