Broken lcd, need help backing up data

[Guest koeisjovis]

Unfortunately, the lcd of my unrooted Desire Z device recently broke. The touchscreen is working though. Before I send the device in for repair, I'd like to back up my data (contacts, sms..) via ADB. However, USB-debugging mode is not enabled on my device.

I know where to find the option, but it's difficult to get there without seeing anything on the screen.

Could someone please post a couple of screenshots of all the steps to take, in such a way that I can determine the right place to press the screen to enable USB-debugging mode?

Any other suggestions to tackle this issue and back-up my data are of course also welcome.

Thanks in advance!