If you have a problem with
settings on the product control panel, you can reset them to their
factory defaults. You can choose which settings to reset or reset
them all.
Press the home button, if
necessary.
Select Settings > Restore Default Settings. You see a
screen like this:
Select one of these
options:
Network
Settings: Resets all network settings
All Except Network
Settings: Resets all settings except for network
settings
All
Settings: Resets all control panel settings
You see a confirmation screen.
Select Yes to reset the selected settings. (Select
No if you want to cancel the
operation.)