Can i Change my device firmware Sm-g920T to another Tmobile firmware in order to get marshmallow?

My S6 is a Tmobile version factory unlocked the baseband is G920TUEU3COK1 so i cannot get marshmallow update because my baseband is not included on theupdate that they provide.

Can i change it to one of the basebands that got the update.

https:// support.t-mobile .com/docs/DOC-21138 that is the link with the listed basebands that will get the update.

Moved to the S6 forum--I think you'll get better answers here than in the general Marshmallow forum.