If you stack on infinitive loop where your Samsung Omnia 7 (Windows) phone keeps on restarting, this may solve your problems (it solved mine)
Make sure your Device is switched off (remove and reinsert the battery)
1. Press and hold the Camera, Volume Down, and Power buttons simultaneously.
2. Release Power when the phone vibrates, but continue to hold down Camera and Volume Down.
3. Release Camera and Volume Down when the Format prompt is displayed on screen.
4. Press Windows key twice to confirm the hard reset.
Enjoy your phone now