As mentioned previously, Sony has now released the PSP Firmware Update v4.01 as expected.

To recap, the update includes two main changes, the latter being improved video playback for certain file types.

* Display of search results under Internet Search has been improved for certain languages.
* Playback of video content under Video has been improved for certain file types.

Download: PSP Firmware v4.01 (US) / PSP Firmware v4.01 (EU)

No word yet if Alejandro plans to jump right to 4.01 CFW now, or proceed with his 4.00 M33 CFW that was expected later this week. Time will tell...

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