USB Device Not Recognized. One of the USB Devices attached to this computer has malfu

[Atsuko_Chan]

USB Device Not Recognized. One of the USB Devices attached to this computer has malfunctioned and Windows does not recognize it.

ihave 2 phone 8520 and 9000 both are same problum any budy have solution i already changed usb jack, cable , computer , same computer other phone is working
pl help :-

 

[Green beans are gross!]

First install Blackberry desctop manager & drivers.
Restart your PC and conect your phone.
Regards.

 

[crazyhorsegirl]

i already do everything u suggested anything else