HP h5400 - Manual (Page 62)

2–30 Reference Guide
Getting Acquainted
Perform a Full Reset
A full reset is sometimes referred to as a “hard reset.” Perform a
full reset when you want to clear all settings, programs, and data
from RAM.
A full reset will de-activate the battery. The power button will not
function until the battery is reactivated.
✎
Programs and data stored in iPAQ File Store are not
automatically deleted. You must manually delete the files.
To perform a full reset:
Ä CAUTION: If you perform a full reset, you will return to your default
settings and lose all information not in ROM.
1. Press and hold the lower left and lower right buttons.
2. Press the Reset button on the bottom of the iPAQ Pocket PC
with the stylus.