Sony PlayStation Portable 3001 Safety And Support page 20

The connected USB device is not recognized by the PSP
system.
, Check that the USB connector on the top of the system is clean.
Try wiping it with a soft, dry cloth.
You forgot your password.
, If you restore default settings under
"Restore Default Settings", the system password will be reset to
"0000". For details, refer to the user's guide (
Note that if you restore default settings, settings you have adjusted
for options other than the system password will also be cleared.
Once cleared, these custom settings cannot be restored by the
system.
The analog stick does not function properly.
, At a scene where the symptoms appear, move the analog stick in a
circular motion. This will help you determine the optimum
operating range.
The PSP system cannot communicate with another PSP®
®
system in ad hoc mode and communication is
disconnected.
, If "UMD™ Cache" under
you may not be able to communicate properly.
20
Before requesting service
®
(System Settings)
page 5).
(System Settings) is set to "On,"