Keypad mobile phones (feature phones) from Chinese brands (e.g., iTel, Tecno, Nokia (HMD China), Gionee, ZTE, Huawei (older models), Xiaomi Qin, and unbranded MTK phones) often require specific USB drivers for:
Clean the Port: Dust in the micro-USB port is a common reason for the "USB Device Not Recognized" error.
: Required for flashing and unlocking legacy MTK-based phones. Download from sites like Xiaomi Tools Spreadtrum (SPD/Unisoc) Drivers