Why is screen freezing in an enlarged state?
My main screen is freezing and it has somehow enlarged to almost 5 or 6 times it's size. I have turned it completely off and it comes back on looking normal for a second, and then returns to the enlarged state and it is completely frozen.
Double tap the screen with three fingers simultaneously and it should go back to normal. Three finger tap is zoom functionality of iPhone 3G-S added feature
Page 189 - Zoom
Turn Zoom on or off:
In Settings, choose General > Accessibility > Zoom and tap the Zoom On/Off switch.