Sony PSP-2001 Guide De Référence Rapide page 29

Update methods
You can perform an update in any of the following
ways.
With an Internet connection
Network Update
Update using the PSP system's wireless LAN
®
feature.
By selecting (Network Update) under
(Settings), you can connect to the Internet and
update your system to the latest system software.
Update using a PC
Update using a PC to download update data from the
Internet. For detailed instructions, visit
http://www.us.playstation.com/psp
Updating the system software
Without an Internet connection
Update using a UMD™
You can update using a UMD™ that contains update
data.
1
Connect the AC adaptor to the PSP
system.
2
Insert a UMD™ that contains update
data.
The update data icon and version number are displayed
under (Game) in the home menu.
3
Select (PSP™ Update), and then press
the button.
The update begins. Follow the on-screen instructions to
complete the update.
PSP system updates
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