I have a At&t Galaxy note 2 unlocked. Last night it was working fine conecting via USB to PC. Today i took my phone to this shop that flashed my network settings to work on T-mobile 4g network. Well i got 4g, But cant connect to PC. I have tried everything. Using different usb cords and usb outlets. My GS 3 connects with no problem but all my Note 2 does is charge. I also uninstalled Kies and downloaded the Galaxy Note 2 toolkit and downloaded new drivers and still nothing. Please help im going crazy....:-X