PlayStation Vita got its second post-release firmware update. The update takes the system from version 1.51 to version 1.52.
As with the previous update, this is just a small bug fix.
Sony did not say what exactly the update fixes. However, a number of Vita owners are saying via Twitter and blogs and so-forth that the update fixes a version 1.51 bug where the 3G system would not recognize your SIM card.