Has anyone upgraded their P5210 to the new release XAR-P5210UEUANB2? I downloaded the firmware last night but am debating loading it. I have multiple backups so if anything goes awry I can put my tablet back to the way I like it. Just trying to figure out if it would benefit me to move to the new version. Couldn't find what the difference was between the new version and the XAR-P5210UEUAMK1 version.