To perform a hard reset first remove the expansion packs if any,thence turn the device on (not connected to AC power) and press
and hold two outside buttons
( 1 Calendar and 4 iPAQ Task ), also insert stylus into the reset
button at bottom of iPAQ and pressing and holding this for 5 secs.Release the above buttons in any sequence. To reactivate iPAQ, insert stylus into soft reset button or simply
connect iPaq to AC adapter.