Root LTE Band 12

[iSoBeastOnYou]

I'm wondering if there's a way to get band 12 on my zmax without updating to b12 or b13.

I'm currently running

Metro stock 4.4.4 rooted

P.S. if there is a way it would have to be without using a computer.

 

[iSoBeastOnYou]

Anyone?

 

[fino8129]

no idea i dont thing is possible