im sorry but when you flash a custom rom on your device you have deceided that you dont want official support from samsung(or any other manufacturer) in my post i am responding on a post mentioning CM which void varanty if something goes wrong like your usb stops working, your phone gets bricked and you have custom recovery on your phone, unless support tech are to lazy to check samsung will not repair your phone inside warranty and you will have to pay for the repair althou it is not your fault in any way that the usb electronics stopped working