Originally Posted by mgmartini
I have just brought from China a G9009D Dual Sim Galaxy S5 and just now I realized that it has a "China Use Only Sim Slot - CDMA".
I am from Brazil and I was wishing to use 2 different numbers on it (3G).
Is anyone researching if there a way to change this? I.e: Make both Sim card slots 3G and Quadband?
You probably can't do that. Only one slot is GSM, the other is CDMA. You'd need a different model to support two GSM numbers.. the sm-900fd duos appears to have dual GSM SIM slots.
In any event, there is a thread that collates all of the information on the Chinese model that you have. Do a search and look for details there. You'd also find a better audience for your model as the people in that thread have the same goals and model as you.