Deleting phone book on S66

I just got an S66 on eBay and the guy forgot to delete his phone book, so now I have to. Problem is there are abour 100 numbers and the only way I've figured out to delete them is by doing it one by one. Anyone know how to delete the entire book? I tried master reset and that didn't delete the phone book, only changed settings to default. Thanks.

---

› See More: Deleting phone book on S66

Hm, I just went into groups and there is a delete all option but it requires a phonecode. What now? Call Siemens?

same thing with my sk65
it was enterating to read his email but
install the crap. then go mobile phone manager. while the phones connected to the pc then goto contact select all and delete

If only I had a USB cable or bluetooth. I actually spent about an hour deleting them all. Anyone know a place to find cheap USB cables for the phone?