These codes are categorised by their primary utility, from hardware testing to system information.
: Allows users to "dump" system logs and delete unnecessary junk files, which can help improve device performance. How to Use Secret Codes on SAMSUNG Galaxy S9 E...
might not work on another if they are on different carriers. Samsung Galaxy S8/S9 Plus - SECRET CODES These codes are categorised by their primary utility,
*#*#273283*255*663282*#*#*
| Code | Function | Risk Level | | :--- | :--- | :--- | | *#0228# | – Shows voltage, temperature, and fuel gauge. Useful for checking if your battery is degrading. | Safe | | *#12580*369# | Software & Hardware Info – Displays manufacturing date, CSC, and firmware revision. | Safe | | *#9090# | Diag Config – Allows enabling USB diagnostics for Qualcomm chips (developers only). | Medium | | *#2663# | TSP / TSK Firmware Update – Updates the touchscreen firmware. Use if your screen becomes unresponsive. | Safe | | *#34971539# | Camera Firmware – Shows the rear and front camera sensor types and firmware version. | Safe | | *#7353# | Quick Test Menu – A simplified version of *#0*# . Tests speaker, mic, and vibration. | Safe | | *#9900# | System Dump – Used to create logs for debugging. Option to "Run dumpstate/logcat" or "Copy to sdcard." | Safe | | *2767*3855# | Full Factory Reset (The "Whiplash" Code) – Wipes everything: internal storage, system settings, and efs partition. This removes your IMEI if done incorrectly. | Dangerous | | *#0808# | USB Settings – Changes how your PC sees your phone (MTP, ADB, Modem, or RMNET). Essential for rooting or flashing. | Safe (if you know what you’re doing) | | *#1234# | Firmware Version – Displays PDA, CSC, and Baseband versions. | Safe | | Safe | | *#9090# | Diag Config