My hp ipaq wont start

To do a full reset, you hold the calendar and itask buttons (buttons 1 and 4) down at the same time, then insert the stylus into the little hole on the bottom and press gently. Hold all for 4 seconds. The screen should begin to fade. Now release all. If successful, you will not be able to start the machine by pressing the on button. You will have to reconnect to ac power to start it.

That is all there is to it.