PSP official firmware 3.03 released

Posted by multippt

Sony recently released a new firmware update for PSP users. This update updates the PSP’s firmware to 3.03.

The following feature is added:
-More Playstation titles from the PLAYSTATION Network can be played on the PSP

Note that updating this can render your PSP being unable to run homebrew (non-official) software. This firmware cannot be emulated from a homebrew application.

A PSP firmware update consist of several files within it, of which one of the files is a file with the extension *.PSAR. This special file contains the firmware files, which the update installs into the PSP. This new update features a different *.PSAR file, that consist of a different layout. This results in currently available PSP firmware dumpers being unable to dump the new update for emulation. In addition, the encryption keys for certain important files have been changed, making decrypting the entire firmware update not possible. Thus, emulation of this new firmware is not possible at the moment.