Samsung SPH-I330 - Manual (Page 104)

Section 2: Understanding Your Phone
2J: Getting to Know the Handheld Computer 100
inside the hole next to the power accessory interface connector
located on the bottom of your handheld.
Performing a Hard Reset
A hard reset erases all records and entries stored in your handheld. Never
perform a hard reset unless a soft reset does not solve the problem. To
restore your data after a hard reset, you must perform a HotSync
operation.
Note: You can restore any data previously synchronized with your
computer during the next HotSync operation.
Note: With a hard reset, the current date and time are retained. Formats,
Preferences, and other settings are restored to their factory default
settings.
To perform a Hard Reset:
ᮣ
To perform a hard reset, press and hold the Handheld Power button
, then use the stylus tip or a paperclip to press the reset button.
Remove the stylus or paperclip from the rest hole, then release the
handheld power button. An “Erase all data” screen is displayed
confirming the hard reset. Press the up scroll key on the front of the
phone to perform the hard reset.
Note: If the message “Erase All Data” is not displayed on the screen, you
have not performed the steps listed above correctly. If the down scroll key
is pressed, it will cancel the hard reset.