hi, can anyone help me. I have a se x8 with 3 on a 2 year contract. 3 months into contract phone crashed while taking a phone call. Phone will still charge, switch on, can still do all functions except make or receive call and texts. Just comes up no service. Phoned 3 who said it may be software and sent it in to them. Was then told it was cracked usb port and then was damaged circuit board caused by phone being dropped or crushed (which it has not been). eventually got phone back and can still charge and turn on and use except make or receive calls and texts. Took to independant repair shop and guy said phone didnt look as if had been opened up to be looked at. Screws and clips looked untouched. Said it should still be covered by warranty if faulty. Anyone have any comments for me.