Hard Reset wipes the internal memory and returns the Treo to its
factory specs, in effect returning the Treo 750 to the state it was in
when you purchased it. All data entered,
preferences set or software installed on the Treo after purchase will
be lost after a hard reset and will have to transferred or reinstalled
via ActiveSync / Windows Mobile Device Center.
Palm Treo 750 can be hard reset by pressing and holding the power
button (seen left) while at the same time pressing and holding reset
button beneath the miniSD memory card door. Press and hold the two
buttons until the screen completely fades. When the screen returns,
you'll be given the option to "Erase all data." Select Yes to complete
the hard reset.
Treo will now be as it was when it left the factory and you can start
fresh. You may have to perform a soft reset after the hard reset to
get the unit to power on.