PlayStation Portable (PSP) Firmware 5.51
PlayStation Portable (PSP) Firmware 5.51 description
This update is for customers who own PSP® systems with model numbers PSP-1001, PSP-2001 or PSP-3001 sold in North America. DO NOT update your PSP® system through this Web site if you purchased your system outside North America. There is no guarantee of proper operation with models sold outside North America.
For installation instructions go to this page:
http://www.us.playstation.com/Support/SystemUpdates/PSP
