Will it ever be possible to unlock a CDMA phone for GSM use?

estockme

macrumors regular
Original poster
Mar 3, 2011
236
1
Not international, but to switch from Sprint or Verizon to att, tmo, etc in the US.

Is this in the cards?
 

wordoflife

macrumors 604
Jul 6, 2009
7,563
34
Well you can't use the VZW iPhone 4 (CDMA) with GSM since it has no SIM card entry. With the 4S, it is said that Verizon (and maybe Sprint) is only unlocking phones to international carriers, so I'm not sure if it will work on AT&T. That's just the rumor. Sprint apparently is not selling unlocked iPhones anymore too (maybe they will unlock it if you call?)
 

B777Forevar

macrumors 6502a
Jul 25, 2011
767
2
Chicago, IL
You'll have to wait for a jailbreak unlock if you want your iPhone fully unlocked.
As of right now, Verizon only unlocks it to international carriers.
 

Ksizzle9

macrumors 6502a
Apr 15, 2011
566
0
Wirelessly posted (Mozilla/5.0 (iPhone; CPU iPhone OS 5_0_1 like Mac OS X) AppleWebKit/534.46 (KHTML, like Gecko) Version/5.1 Mobile/9A405 Safari/7534.48.3)

I Almost started this exact same thread. Since, essentially all 4s' are the same phone, it's not a hardware issue. So it must be software. I wish someone who knew the dev team had a way of asking them this question to see if it's even doable(which it 100%shud b) or if it's something they are even thinking about. This would potentially make the Verizon/sprint iPhones very very valuable here in the states since they would be able to work on all carriers at that point. Would LOVE LOVE LOVE to see this hack at some point.
 

scaredpoet

macrumors 604
Apr 6, 2007
6,627
342
Well, aside from the mom and pop carriers, AT&T is, unfortunately, the only nationwide GSM carrier in the US that the iPhone 4 will fully work on. Even if unlocked, T-Mobile's 3G band is on 1700MHz, a band the iPhone isn't equipped for. So you'd be stuck on edge in their 1900MHz spectrum.

Otherwise, yes, it's a software issue, and entirely a carrier decision.
 

bidwalj

macrumors 65816
Feb 16, 2007
1,036
112
Getting an unlocked phone to work on AT&T is easy as all you do is put in a sim. It's a bit harder on Verizon and sprint. Verizon and sprint only allow phones they approve to be active on their network. Hardware wise, an iPhone 4s can work on all the networks (no tmobile 3G) but Verizon and Sprint have to allow it first.
 

estockme

macrumors regular
Original poster
Mar 3, 2011
236
1
Getting an unlocked phone to work on AT&T is easy as all you do is put in a sim. It's a bit harder on Verizon and sprint. Verizon and sprint only allow phones they approve to be active on their network. Hardware wise, an iPhone 4s can work on all the networks (no tmobile 3G) but Verizon and Sprint have to allow it first.
Right... I've unlocked GSM phones w/ tmo before by simply calling and asking nicely. Any chance this will happen with sprint some day?

On the other hand i guess I could say what is the point... I'm off contract, so I could drop out any time, switch to another carrier and sell the sprint phone to cover the switch +the first few months.
 

Asianxfatty

macrumors member
Nov 6, 2011
30
0
I know what you mean, i have a verizon iphone 4s, it has the capabilities to be unlocked internationally. IT should also a have a way to be unlocked domestically inside the United States. It is essentially the same technology inside the 4S, I posted the same post a couple weeks ago, hoping that one day there will be a software unlock to make the iphone 4s fully unlockable in the us. Wouldn't it be great that we could carrier hop in the United States :p..I believe in DEV team, we just got to be patient. im sure they have the same idea as us!

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i wish the unlocked version of the 4S was CDMA + GSM compatible, but it isnt =/
 

iDuel

macrumors 6502a
Jul 20, 2011
773
94
Greece/USA
Right... I've unlocked GSM phones w/ tmo before by simply calling and asking nicely. Any chance this will happen with sprint some day?

On the other hand i guess I could say what is the point... I'm off contract, so I could drop out any time, switch to another carrier and sell the sprint phone to cover the switch +the first few months.
No there is no chance. This is a common practice with cell phone carriers in the united states. Sprint & Verizon will definently not unlock the SIM card tray for domestic use.

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If you want an unlocked phone, buy it full price from Apple. It's that simple.:rolleyes:
 
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