ATT on Verizon 4S

[grilledsteeze]

Is this possible? I thought all the phones had the capability to use both networks. When the ATT sim is in though it says incorrect SIM.

 

[Ikyo]

There are a lot of posts about this already. The phone does support multiple bands, but it is locked only allowing Verizon and Vodaphone.

 

[grilledsteeze]

any way to unlock it?

 

[grilledsteeze]

Bump.. Anyone try this?

 

[jav6454]

Bump.. Anyone try this?

Wait for the iPhone Dev Team first...

 

[DiamondMac]

There are a lot of posts about this already.

Would love to see this forum start to give warnings for not searching the forum

 

[grilledsteeze]

Would love to see this forum start to give warnings for not searching the forum

except that no string of search queries yields a thread similar to mine.. Sure plenty talk about unlocked SIM cards overseas and whatnot, but for the life of me I could not find one about using an ATT SIM in a Verizon 4S. It wasn't for lack of effort..

 

[b24pgg]

Verizon's iPhone 4S can be unlocked but will only work with foreign SIMs.

That means that AT&T and T-Mobile SIMs will not work even if the phone is unlocked; you can only roam on those networks with foreign SIMs.

See this thread for more info.

 

[grilledsteeze]

I guess I'm just curious how they can lock a phone if they all ship from apple the same. Is is something in the BIOS? There can't be 3 different versions of iOS 5 for Sprint/Verizon/AT&T can there... anyway thanks for the help guys.

 

[b24pgg]

I guess I'm just curious how they can lock a phone if they all ship from apple the same.

They don't. Each carrier's iPhone 4S has a different model number: