My phone locked up on me after I did a restart. I then had to hold down the off button and volume down button to do a hard reset. When I finally got my phone back on I cannot get into any of my apps or on google as it won't let me sign in to my iTunes account and keeps giving me this error. I cannot connect to Apple ID server. My texts and photos are still on my phone but I am afraid to restart it again as I don't want to lose them as well.