I recently committed to Nextel Mexico which i think uses cmda evolution or evdo... thing is they offer the iphone 5s but i dont think they will offer the iphone 6 anytime soon. They gave me a moto x which i dont really planed to use as i wanted to buy the iphone 6 when it becomes available. But... here comes the part i'm most confused... I tried my sim card on an ATT unlocked iphone 5... No service, then tried it on a Verizon Nokia Icon... No Service.... I assume that the iphone 5 didnt work because it's unlocked for gsm. And after some research i now assume it didn't work on the Nokia on Verizon because even if their gsm part is unlocked their CMDA is still exclusive to work with Verizon only. So my question is... is the A1429 version of unlocked phones only gsm, or does it work with any carrier using cdma worldwide?