You wait until the battery runs out. At least that's what i do...
The message of wait one hour occurred because a wrong passcode was entered into the system. To get rid of the message you will need to leave the radio on and uninterrupted for the one hour. The radio will then reset itself and will be fine again.
It is probably telling you you have an unread text message, go into your inbox and ensure all messages are read if one is not read open it. This should get rid of the icon.
my nokia 2720 on and white screen
.................................................................................Remove it
Unfortunately, the only way to get rid of the blue screen of death is to get a new hard drive.
You wait for it to leave.
wait until it is over.
you can't
It's the white screen of death you can't eliminate death.
Screen Recorders (at upgraded) dont have ads
You can hide it by right-clicking a blank area of the navigation toolbar.