[QUOTE=sensboston;25213438]Check cables first, then try different USB ports. You may also check installed drivers in device manager.[/QUOTE
I have triyed already with different cable and usb port, already found 3 driver on device manager,
1. SAMSUNG Mobile modem
2. SAMSUNG Mobile modem Diagnostic Serial Port (WDM) (COMXX)
3. SAMSUNG USB Composit Device
After that I917 (Focus) Not connecting with Zone Soft on Windows 7
Your phone is in Tethering (USB Modem) mode. You need to put it back in Zune mode before it will sync with the PC. On the offhand chance that you got it into tethering mode by accident, there are instructions on the forum for how to change between the modes. Note that USB tethering is not the same as the WiFi "Internet Sharing" feature that is built into the OS; I believe that USB tethering uses the Diagnostics app on Samsung phones.
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