Swapping sim card between iPhone 4 and S4 on AT&T

You can swap the SIM card back and forth between the phones with no issue. But if you want LTE, two things need to happen:

1. You'll need to get a data plan that is provisioned for LTE.
2. You'll need a new SIM card.

I always had issues with data when I used to swap between iphone and android. I had it explained by an ATT tech before, but I forget it's been a while. Every time I switched I had to call ATT to have them set it up, only took a few minutes but took the fun out of owning 2 phones real quick.

LTE automatically turned for me when I went from a 4S to an S4. I did get a text asking me to switch plans so I don't know how long it would have lasted.

I've never had any problems switching between my iPhone 4 and an Android phone. I have a "smartphone" data plan and not an "iPhone" data plan which is what may have been causing the issues the other posters had. AT&T is weird like that. Here is what I see when I log into my account; first screenshot is my wife's line, second is mine.


edit: FWIW, I've swapped my SIM from an S3 to my iPhone 4, a Nexus 4 to my iPhone 4, and just now tried it from my HTC One to my iPhone 4. Same experience with all.

Wait is LTE a different service than regular data on ATT?

MacUser03 said:

Hmm, conflicting reports on whether swapping out the sim card will work or not. Can anyone else weigh in this?



Which iPhone and android phone were you swapping between?

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Originally an ip4 and a samsung captivate, but just earlier this year it was with a ip5 and a Note 2. I used to completely lose data and whenever I called they said it was because they were set up differently in AT&T's system for data. Maybe they changed something since then. I would LOVE for this to be seamless as well as I am very much undecided between a 5s and a Note 3 and I think I may buy them both and just swap out the SIM card as desired.

Just to clarify it wasn't an issue with LTE, I just didn't get ANY data until I called and let them know I was on a different phone.

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Stooby Mcdoobie said:

I've never had any problems switching between my iPhone 4 and an Android phone. I have a "smartphone" data plan and not an "iPhone" data plan which is what may have been causing the issues the other posters had. AT&T is weird like that. Here is what I see when I log into my account; first screenshot is my wife's line, second is mine.

Image

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edit: FWIW, I've swapped my SIM from an S3 to my iPhone 4, a Nexus 4 to my iPhone 4, and just now tried it from my HTC One to my iPhone 4. Same experience with all.

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Hmm, that's interesting, maybe I had an iphone plan. I had a mobile share plan with 2 iphones and an ipad on it back then so it wasn't a plan add on, but incorporated into the plan itself.

Can anyone else comment on the mobile share plans specifically and if you can swap the sim from iphone to android and have data work automatically with no call to ATT required?

Bankaimadness said:

Wait is LTE a different service than regular data on ATT?

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Technically, yes. Your account has to be properly provisioned for it with an LTE data plan. Once you have that, you can switch between multiple phones and it's fine.

Bankaimadness said:

Wait is LTE a different service than regular data on ATT?

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Nothing at all. I don't know why AT&T does this. Last summer I was switching between an HTC One X and iPhone 4S without any issue at all.

MacUser03 said:

How did you get on a "Data Unlimited plan for LTE"? Did you start out with an android phone? I thought an LTE sim card didn't work in an iPhone 4.

EDIT:
According to this page, and LTE sim card does work in an iPhone 4. So it seems what I need to be able to swap between iPhone 4 and android phone is to get an LTE data plan and LTE sim card, and then I can have the best of both worlds.

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I had an unlimited iPhone data plan for years. When I switched to a GS3 last year, the rep at the store changed my plan to what you see above. Since then, I've been able to switch back and forth between any AT&T/unlocked phone with a microSIM slot.

That page is correct. When I put my SIM in the iPhone 4, it works no problem - it's just stuck on 3G like normal.

Stooby Mcdoobie said:

I had an unlimited iPhone data plan for years. When I switched to a GS3 last year, the rep at the store changed my plan to what you see above. Since then, I've been able to switch back and forth between any AT&T/unlocked phone with a microSIM slot.

That page is correct. When I put my SIM in the iPhone 4, it works no problem - it's just stuck on 3G like normal.

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Any idea what plan you get when you sign up for a mobile share plan? I asked many technicians if there was a plan that allowed me to swap at will and they all said no, that's when I gave up. They said there was only one plan for mobile share, but the way the phone was input was what was limiting me.

spinedoc77 said:

Any idea what plan you get when you sign up for a mobile share plan? I asked many technicians if there was a plan that allowed me to swap at will and they all said no, that's when I gave up. They said there was only one plan for mobile share, but the way the phone was input was what was limiting me.

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I'm honestly not sure. When you log into your AT&T account, what does it say under myAT&T > Wireless Services > Add or Change a Service?

Stooby Mcdoobie said:

I'm honestly not sure. When you log into your AT&T account, what does it say under myAT&T > Wireless Services > Add or Change a Service?

Image

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I don't have post paid anymore, I'm on go phone. On go phone it just says smartphone plan so i have a feeling i will be able to swap. So now i can buy a note 3 and a iphone 5s.