If you have an .exe file (like the "MTK All-in-One" driver), right-click it and select Run as Administrator . Manual Method (Recommended): Open Device Manager (Right-click Start button).
Then use minicom or picocom on /dev/ttyUSB0 . mt6261 usb driver
If you get no response, the driver is functional but the device is not in modem mode. Try sending AT+CFUN=1 to enable full functionality. If you have an
MT6261 (MediaTek MT6261) is a low-cost, feature-phone-class MCU with integrated cellular modem and peripheral interfaces. This write-up covers the USB driver stack typically used with MT6261-based devices: enumeration, USB classes supported, control transfers, data endpoints, power and wake handling, firmware/bootloader interactions, common host-side tools, and troubleshooting. USB classes supported