The New 2.81 Is Avalible Via Network Update And Sony Japan Website
http://www.jp.playstation.com/info/support/sp_20060907
Network Update
The main function which is renewed with system software version 2.81
It corresponded to the vulnerability with respect to security of system software.
Furthermore <importance news>
System software of time before the PSP® system software version 2.80 to customer of errand
“The memory stick PRO duo” of the bulk which exceeds 4GB cannot use with PSP® of time before the PSP® system software version 2.80. As for details please view this.
