Default baseband xperia z C6616 to C6603

Currently I have the Xperia Z c6616 LTE bands that tine 1/2/4/5/8 but has the band 7 which serves to claro Colombia you can get this side with the Xperia Z c6603 baseband that would Bands 1, 3, 5 , 7, 8, 20? in this case would be inserted by software missing bands. It is possible?

I have seen that XDA can with a model of ZL Colombia but as I think I am using the C6603 does work on 4G LTE Claro Colombia.