mobile

I see the general consensus is that the tmobile note 4 cannot be used on verizon. Is the radio purely software controlled? Could I just flash another baseband and modem?

I did notice when I installed cm12 and inserted my verizon sim I was able to get 4g and data access but not on the stock tmo rom. Voice did not work as well. Is there anything I can do? I dont really want to have to shell out for the verizon version with an unlocked bootloader.

Thanks