make sure that the personal computer Bluetooth adapter is on, if not please plug it in and/or turn it on.

connect only one device (iPhone or iPod touch) to your personal computer in case you have several.

check the iTunes version installed on your computer, make sure that you have the proper iTunes version for your mobile device - 7, 8 or later you can always download and install the latest iTunes version from the Apple web site.check if the Microsoft ActiveSync is installed on your computer if not please install Microsoft ActiveSync (this can be downloaded from the Microsoft web site) and after that register the AVSMobileDevice2ActiveSync.dll (to do this go the the Windows Start menu and select All Programs - AVS4YOU - Repair).check the Windows Media Player version installed on your system, make sure that you have WMP version 10 or higher (11/12) installed you can always download and install the latest version of Windows Media Player from the Microsoft web site.

make sure that you connect the mobile device directly to the computer USB port, please do not use any USB hubs, USB extension cables, display or keyboard USB ports.check the device connection to the personal computer (make sure that the cable is connected and the USB port works properly), connect the device to the proper USB port of your personal computer if necessary.make sure that the mobile device is on, if not please turn it on.For all the USB connection types (USB-UMS, USB-MTP, USB-ActiveSync, USB-iOS):.No mobile devices can be detected by the program

Microsoft activesync keyboard