Extract the archive using WinRAR or 7-Zip. If prompted for a password, it is often included in the download source (common defaults include official-gsm or sulteng ).
Wait for the log to show Success or All Operations Done . Disconnect the phone and power it on normally. Safety and Best Practices
MTK GSM Sulteng Tool V1.3.9 is a free, Windows-based utility developed by Hary Sulteng primarily designed for servicing MediaTek (MTK) powered Android devices. It is widely used by technicians to perform tasks like removing screen locks and bypassing Factory Reset Protection (FRP).
While newer versions like V1.4.0 exist, V1.3.9 remains a "gold standard" for stability on many legacy and mid-range MTK devices. It is lightweight, requires no expensive dongles or boxes, and features an automated interface that handles the chipset communication without manual configuration. Disclaimer Mtk Gsm Sulteng Tool V1.3.9
Clear user data while attempting to preserve certain system settings.
.NET Framework 4.5 or higher installed on the PC. Step-by-Step Installation Guide
: Note 8 Pro, Note 9, Redmi 9/9A/9C, and Poco M2/C3. Extract the archive using WinRAR or 7-Zip
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Works on Windows 7, 10, and 11 (64-bit recommended).
The program packs essential maintenance and bypass functions into a highly simplified graphic user interface (GUI). Some of its standout capabilities include: Disconnect the phone and power it on normally
Options to unlock or relock the bootloader for customization.
: Supports both unlocking and relocking the bootloader.
Unlocks the device bootloader directly through BROM mode to enable custom ROM installation or rooting.
If a device is slow, unresponsive, or simply needs to be restored to its original settings, the Factory Reset feature wipes all user data and reverts the software to its factory state. This can also be helpful when selling or giving away a device.