Re-install the USB drivers or try a different USB port/cable.
If official links are down, use reputable mobile repair sites like RepairMyMobile or FirmwareFile . Download INTEX 3200 Software rar
Click the Load Packet button (usually a gear icon) and select the .pac file from your extracted folder. Connect Device: Power off your Intex 3200. Re-install the USB drivers or try a different USB port/cable