I heard in a post a while back that someone had a problem upgrading to 2.0 from a 1.5. The WAB Version Changer was used to change the 1.5 to 2.0. He then changed it back to 1.5 in order to upgrade, and apparently the upgrade failed and resulted in a bricked PSP. There was no confirmation of this in the earlier post, and I just need to ask if anyone else has had this problem. Please respond with details regarding your problems.