like one of the other posts earlier; i too am in the uk.
my phone worked fine even after 7.1. then today; suddenly; the touch id stopped working.
i cleaned my fingers and the sensor, restarted my phone, rebooted my phone, reset my phone to factory settings and restored it...
but nothing!
:-(
The phone unlock and itunes app store buttons are unchecked, but if I try and click on them it changes to the 'place your finger' screen, i then try to teach my prints- but nothing happens, no buzz or vibration or red marks. On the odd occasion it has buzzed once or twice and i managed to get a couple of red marks on, but then it freezes. I too have deleted the prints and tried again, nothing.
what's going on????