why can i not upgrade to lollipop 5 on my asus tf300

[AC Question]

when i search to do an upgrade from 4,2 to lollipop 5 it says i am up to date

 

[AlphaTango414]

Have you ensured your device supports 5.x.x ? I would assume your device will have 4.4.4 before you would be able to get 5.x.x. So in short, make sure your device supports it, not all devices do.