Lumia 920 stuck at startup
i have the following problem:
My Lumia 920 somehow turned itself "off" (there was enough battery), however pressing the power button did not turn it on again. So I did a soft reset (guess it was not really turned off then afterall, but maybe only the display was turned off?), but now the phone is stuck after showing the Nokia logo and switching to the blue background where the Windows Phone logo is supposed to appear.
Do you have any recommendations? I already tried the key combination for a hard reset, this led to the screen showing an exclamation mark and then turning off again and now it seems like the key combination does not do anything at all anymore. So I am again stuck at the blue background.
Any ideas on solving this issue? Would really be appreciated!