open up a TomTom 700?

The case envelops the electronics and screen very tightly.
1/Use some good quality gaffer tape on the screen to pull it and the bezel from the dark back shell just enough to start pulling it out by hand.
Tip. If you make a 'small bridge' of gaffer and then pinch it together it will make a small handle and a better fix to the glass and not pull off it too easily.

Andy777
September 2010