I can't find any online manual for it. On Walmart's website they say nothing about screen mirroring or Allshare. Same on Amazon. On Walmart's website there were however a few reviews voting it 1 star because the manual said it supported Allshare even though it doesn't. Might have been advertised as supporting it earlier and the manual was wrong.

This thread from Samsung's community forums (All links to the player's support link are dead) also has several users complaining that they can't install more apps when it was advertised as support 250+. A moderator stated this was a basic model that could not install any additional apps than what it shipped with.