Is this KODI Box useless?

Being of limited Scottish ancestry I purchased the cheapest Kodi box I could find: An MBOX.. with Android 6.0 .. Kodi 16.1 .. 8 gigs

Problem #1: I have tried every possible way to upgrade the box to Kodi 17 Krypton.. (hoping that would solve some issues) .. but this MBOX ..T95X – won’t let Me install the new version. I have gone into settings and enabled “allow external .apk files) .. but it won’t do squat. Trying to use the GoogleStore to download the Kodi Krypton package goes nowhere .. as the video screen will allow Me to enter My email name.. but No room for the password.. so I can’t use the google play .. download package.

I also can’t use the external package .. (an .apk – even with that option enabled).

So this box is a piece of Junk? It seems that way. Even playing back local content on a chip .. the box freezes and starts over.

Any help appreciated, but the major problem is that I am just too damn cheap?

Thanks