How to turn HTC Widfire with blank screen into debug mode

My screen on HTC Wildfire has gone blank and so have got my phone upgraded. Whilst the guy in the shop was able to transfer my pictures and video, when he tried to transfer my contact phone numbers he said he couldn't do that without putting the phone into debug mode, and he could only do that if he could see what he was doing on the screen. Is there any way of getting a HTC Wildfire into debug mode without having to use the screen?