Wen i am connecting my mobile to my laptop via usb ,mobile shows "warning !Bad charger contact" after 2-3 min. i tried connecting in diff. ports but the same msg.Earlier my usb dongle was damaged for some unknown reason. Wen i connected the mobile in another laptop ....the same prob occurred........I ve no clue abt wats happening.... pls help me...... Some days before my usb dongle got damaged , i got a warning "usb surge protection", all usb got cut off wen a pendrive was connnected .