Default tmobile 4G lte on Verizon note 3 help

On a Verizon note 3 .
Using tmobile. Can't seem to get lte working.
I can't figure how to get into
Service mode. I'm on mje.
Any and all help would be appreciated.
Also I had a Verizon s5 before this and
It worked with lte just fine .
Verizon note 3
Eclipse rom