Apple is investigating problems generated by iOS 8.0.1

  Apple launched iOS 8.0.1 during this evening for iPhone, iPad and iPod Touch and after blocking GSM connectivity and Touch ID on probably several million iDevices, the company decided to withdraw it. Its employees recommend users to restore through iTunes to solve the problem and this means practically DOWNGRADE to iOS 8, while the engineers of the American company are actively investigating the problem to solve the bugs that cause it.

We are actively investigating these reports... In the meantime we have pulled back the iOS 8.0.1 update.

  Finally, Apple will launch iOS 8.0.2 in the next few hours or tomorrow and will solve the two problems that have upset a very large number of users, but in the meantime we will have to wait.