 prefix. MMI codes are entered like telephone numbers){kind=link}
In the realm of smartphone troubleshooting and optimization, USSD (Unstructured Supplementary Service Data) and MMI (Man-Machine Interface) codes play a vital role. These codes, often referred to as “quick codes” or “feature codes,” enable users to interact with their mobile network operator’s systems directly, facilitating various actions and obtaining information swiftly.
What are USSD Codes?
USSD, or Unstructured Supplementary Service Data, is a protocol utilized by GSM cellular telephones to communicate with the mobile network operator’s computers. These codes serve multiple purposes, ranging from accessing account information to configuring network settings.
What are MMI Codes?
MMI, or Man-Machine Interface codes, typically start with a star/hash (*#) prefix. Similar to USSD codes, MMI codes are entered like telephone numbers and can trigger a variety of functions, including retrieving device information and enabling/disabling features.
Troubleshooting “Invalid MMI Code” Errors:
Encountering an “Invalid MMI code” error on your Android device is not uncommon. This error often arises due to incorrect code input or network connectivity issues. To address this, ensure the accuracy of the entered code and verify that your device maintains a stable network connection.
Android USSD Codes: MMI Code List
Below is a comprehensive list of Android USSD codes, categorized for convenience:
Samsung USSD Codes (Restart)
- #*2562#
- #*3849#
- #*3851#
- #*3876#
Android System Control USSD codes
- *#7284#: USB I2C Mode Controlling Panel
- *#872564#: USB Logging Control
- *#4238378#: GCF Configuration Control
- *#0283#: Audio Loopback Control
- *#1575#: GPS Menu Management
Android Phone Information USSD codes
- ##4636##: Phone Information Overview
- ##49862650468##*: PDA, H/W, RFCallDate Details
- ##1234##: PDA Type and Version
- ##1111##: Firmware Software Version
- ##2222##: Firmware Version Details
- ##44336##: ROM Sales Code, Build Time, Change List
- #272IMEI#: Sales Code Change, User Data Reset
Android Testing USSD Code List
- *#0589#: Light Sensor Test Mode
- *#0588#: Proximity Sensor Test
- ##526##: WLAN Network Entry
- ##232338##: WIFI MAC Address Display
- ##1472365##: GPS Test
- ##232331##: Bluetooth Troubleshooting
Android Network USSD codes
- 7465625638*#: Network Lock MCC/MNC Customization
- #7465625638#: Network Data Lock, Network Lock Insertion
- 7465625782*#: Network Lock NSP Customization
- #7465625782#: Semi-Partiality Network Lock Keycode Input
Android Firmware and Service Mode USSD codes
- *#32489#: Service Mode Entry (Ciphering Info)
- *#197328640#: Default Service Mode Access
- #0808#: USB Service Mode
- *#9090#: Service Mode USB
- *#2663#: TSP/TSK Firmware Update
- *#34971539#: Camera Firmware Update
Android Codes for Factory Reset
- *#7780#: Factory Reset with Confirmation
- 27673855#: Full Factory Reset (No Confirmation)
Android USSD Codes for Debugging
- *#745#: RIL Dump Menu
- *#746#: General Debug Dump Menu
- *#9900#: System Dump Menu (Network Speed, WiFi, Battery Boost)
Generic Android USSD Codes: MMI Codes
- ##0842##: Vibration Backlight Information Check
- ##7780##: Battery History Information
- ##7780##: Usage Statistics Information
- ##7780##: Mobile Battery Information
- ##232331##: Bluetooth Test
USSD Codes For iPhone: iPhone MMI Code List
iPhone IMEI USSD code
- *#06#: IMEI Retrieval
iPhone Field Mode Secret code
- 3001#12345#: Field Mode Access (Internal Settings, Cell Information, Network Settings)
iPhone Call Forwarding code
- *#67#: Call Forwarding Number Check
iPhone Call Minutes code
- *646#: Postpaid Minutes Check
iPhone Bill Balance code
- *225#: Postpaid Bill Balance Check
iPhone Account Balance USSD code
- *777#: Prepaid Account Balance Check
iPhone Configuration Secret code
- *# 33#: Configuration Check (Calls, SMS, Data)
iPhone Operator code
- *#76#: Connected Line Presentation Check
iPhone Call Forwarding USSD code
- *#21#: Call Forwarding Settings Check
iPhone Use of Information Secret code
- *3282#: Information Usage Details
iPhone Missed Calls code
- *#61#: Missed Calls Check
iPhone Call Verification code
- *#62#: Call Forwarding Phone Number Verification (No Service Mode)
iPhone EFR Mode USSD code
- *3370#: EFR Mode Activation
Phone SMS Center Secret Code
- #50057672#: SMS Center Check
iPhone Outgoing Call Code
- 331: Outgoing Calls Bar
iPhone Call Waiting code
- *#43#: Call Waiting Status Check
iPhone Activate Call Waiting code
- *43#: Call Waiting Activation
iPhone Deactivate Call Waiting USSD code
- #43#: Call Waiting Deactivation
iPhone Phone Number Secret code
- *#31#: Phone Number Hiding
iPhone Forwarding USSD code
- ##002#: Call Forwarding Deactivation
iPhone Block Number code (*#30#)
- *#30#: Phone Number Blocking
This comprehensive compilation of USSD and MMI codes aims to empower Android and iPhone users with the tools needed for efficient device management and troubleshooting. Whether you’re seeking network customization, diagnostic information, or configuration tweaks, these codes offer a myriad of possibilities for enhancing your smartphone experience.
Remember to exercise caution when utilizing these codes, as some may impact device settings or functionality. Additionally, compatibility may vary across devices and network providers. Experiment responsibly and leverage these codes to optimize your smartphone’s performance and unlock hidden features.
In the realm of smartphone troubleshooting and optimization, USSD (Unstructured Supplementary Service Data) and MMI (Man-Machine Interface) codes play a vital role. These codes, often referred to as “quick codes” or “feature codes,” enable users to interact with their mobile network operator’s systems directly, facilitating various actions and obtaining information swiftly.
What are USSD Codes?
USSD, or Unstructured Supplementary Service Data, is a protocol utilized by GSM cellular telephones to communicate with the mobile network operator’s computers. These codes serve multiple purposes, ranging from accessing account information to configuring network settings.
What are MMI Codes?
MMI, or Man-Machine Interface codes, typically start with a star/hash (*#) prefix. Similar to USSD codes, MMI codes are entered like telephone numbers and can trigger a variety of functions, including retrieving device information and enabling/disabling features.
Troubleshooting “Invalid MMI Code” Errors:
Encountering an “Invalid MMI code” error on your Android device is not uncommon. This error often arises due to incorrect code input or network connectivity issues. To address this, ensure the accuracy of the entered code and verify that your device maintains a stable network connection.
Android USSD Codes: MMI Code List
Below is a comprehensive list of Android USSD codes, categorized for convenience:
Samsung USSD Codes (Restart)
- #*2562#
- #*3849#
- #*3851#
- #*3876#
Android System Control USSD codes
- *#7284#: USB I2C Mode Controlling Panel
- *#872564#: USB Logging Control
- *#4238378#: GCF Configuration Control
- *#0283#: Audio Loopback Control
- *#1575#: GPS Menu Management
Android Phone Information USSD codes
- ##4636##: Phone Information Overview
- ##49862650468##*: PDA, H/W, RFCallDate Details
- ##1234##: PDA Type and Version
- ##1111##: Firmware Software Version
- ##2222##: Firmware Version Details
- ##44336##: ROM Sales Code, Build Time, Change List
- #272IMEI#: Sales Code Change, User Data Reset
Android Testing USSD Code List
- *#0589#: Light Sensor Test Mode
- *#0588#: Proximity Sensor Test
- ##526##: WLAN Network Entry
- ##232338##: WIFI MAC Address Display
- ##1472365##: GPS Test
- ##232331##: Bluetooth Troubleshooting
Android Network USSD codes
- 7465625638*#: Network Lock MCC/MNC Customization
- #7465625638#: Network Data Lock, Network Lock Insertion
- 7465625782*#: Network Lock NSP Customization
- #7465625782#: Semi-Partiality Network Lock Keycode Input
Android Firmware and Service Mode USSD codes
- *#32489#: Service Mode Entry (Ciphering Info)
- *#197328640#: Default Service Mode Access
- #0808#: USB Service Mode
- *#9090#: Service Mode USB
- *#2663#: TSP/TSK Firmware Update
- *#34971539#: Camera Firmware Update
Android Codes for Factory Reset
- *#7780#: Factory Reset with Confirmation
- 27673855#: Full Factory Reset (No Confirmation)
Android USSD Codes for Debugging
- *#745#: RIL Dump Menu
- *#746#: General Debug Dump Menu
- *#9900#: System Dump Menu (Network Speed, WiFi, Battery Boost)
Generic Android USSD Codes: MMI Codes
- ##0842##: Vibration Backlight Information Check
- ##7780##: Battery History Information
- ##7780##: Usage Statistics Information
- ##7780##: Mobile Battery Information
- ##232331##: Bluetooth Test
USSD Codes For iPhone: iPhone MMI Code List
iPhone IMEI USSD code
- *#06#: IMEI Retrieval
iPhone Field Mode Secret code
- 3001#12345#: Field Mode Access (Internal Settings, Cell Information, Network Settings)
iPhone Call Forwarding code
- *#67#: Call Forwarding Number Check
iPhone Call Minutes code
- *646#: Postpaid Minutes Check
iPhone Bill Balance code
- *225#: Postpaid Bill Balance Check
iPhone Account Balance USSD code
- *777#: Prepaid Account Balance Check
iPhone Configuration Secret code
- *# 33#: Configuration Check (Calls, SMS, Data)
iPhone Operator code
- *#76#: Connected Line Presentation Check
iPhone Call Forwarding USSD code
- *#21#: Call Forwarding Settings Check
iPhone Use of Information Secret code
- *3282#: Information Usage Details
iPhone Missed Calls code
- *#61#: Missed Calls Check
iPhone Call Verification code
- *#62#: Call Forwarding Phone Number Verification (No Service Mode)
iPhone EFR Mode USSD code
- *3370#: EFR Mode Activation
Phone SMS Center Secret Code
- #50057672#: SMS Center Check
iPhone Outgoing Call Code
- 331: Outgoing Calls Bar
iPhone Call Waiting code
- *#43#: Call Waiting Status Check
iPhone Activate Call Waiting code
- *43#: Call Waiting Activation
iPhone Deactivate Call Waiting USSD code
- #43#: Call Waiting Deactivation
iPhone Phone Number Secret code
- *#31#: Phone Number Hiding
iPhone Forwarding USSD code
- ##002#: Call Forwarding Deactivation
iPhone Block Number code (*#30#)
- *#30#: Phone Number Blocking
This comprehensive compilation of USSD and MMI codes aims to empower Android and iPhone users with the tools needed for efficient device management and troubleshooting. Whether you’re seeking network customization, diagnostic information, or configuration tweaks, these codes offer a myriad of possibilities for enhancing your smartphone experience.
Remember to exercise caution when utilizing these codes, as some may impact device settings or functionality. Additionally, compatibility may vary across devices and network providers. Experiment responsibly and leverage these codes to optimize your smartphone’s performance and unlock hidden features.