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.
The following dialer codes are compatible with modern Samsung One UI software environments. Enter them directly into the stock Samsung Phone application keypad. Most codes execute automatically upon typing the final character, without needing to press the "Call" button. Connection problems or invalid MMI code mmi codes samsung
| Code | Function | |------|----------| | *#9090# | – Enable USB diag for QPST/PC tools | | *#7284# | USB I2C / PhoneUtil – Control USB mode and UART | | *#9900# | SysDump – Dump system logs, run dumpstate, battery stats reset, wakelock history | | *#8736364# | VoWiFi / IMS Settings – Enable or configure Wi-Fi calling test mode | | *#2683662# | Samsung Engineering Mode (varies by model) – RF tuning, antenna switching, thermal daemon | | *#2263# | Band Selection – Lock specific LTE/5G bands (carrier dependent) | | *#27663368378# | Full RF Engineering Mode (older Exynos models) – Change band, channel, power level | Mobile phones have become an essential part of