Samsung — Mmi Codes

Mobile phones have become an essential part of modern life, and Samsung is one of the leading manufacturers of mobile devices. To access various features and functions on Samsung phones, users can use MMI (Man-Machine Interface) codes, also known as dial codes or short codes. These codes are a series of numbers and symbols that are dialed on the phone's keypad to access specific functions, such as checking the phone's status, configuring settings, or troubleshooting issues. In this paper, we will explore the different types of MMI codes used on Samsung phones, their functions, and how to use them.

| Code | Effect | |------|--------| | *#*#7780#*#* | – Deletes Google account, system settings, apps (keeps internal storage media) | | *2767*3855# | Full Factory Reset (EMMC) – Wipes everything including internal storage; resets NV, reinitializes EFS. Brick risk if interrupted. | | *#272*[IMEI]# | Sales Code / CSC Change – Changes region (XEF, BTU, KTC, etc.). Wipes user data. | | *#2663# → TSP FW update with reset | Resets touchscreen firmware to default | mmi codes samsung

are hidden sequence commands that string characters together—starting with an asterisk (*) or hashtag (#) and ending with a hashtag—to interact directly with your device's internal firmware. Operating independently of the Android user interface, these protocol shortcuts bypass deep system settings menus to immediately query internal hardware, toggle cellular radio parameters, or run specialized diagnosis suites. Mobile phones have become an essential part of

* One of the most practical applications of these codes is retrieving information. Users can instantly check their IMEI number by dialing #06#, which is crucial for unlocking the device or reporting it as lost or stolen. Similarly, the code #0 # opens a comprehensive diagnostic menu where users can test hardware components such as the touchscreen, cameras, speakers, and sensors. This is particularly useful when buying a second-hand phone to ensure all hardware is functioning correctly. Other information codes allow users to view call timers, data usage statistics, and firmware versions, providing deep insight into the device's performance and history. In this paper, we will explore the different