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iPad Micro SIM in iPhone 4 for data only?

H

HiFiGuy528

macrumors 68000
Original poster
I know no one really knows, but an educated guess?

Not asking if the SIM will fit. I'm asking if I can use my Unlimited data plan on the ipad SIM in the iPhone 4?
 
DjAmTraX said:
I know no one really knows, but an educated guess?
Click to expand...

I really wish people would read information and have some basic technical knowledge of these devices. The iPad uses the Micro-SIM, the same one that the iPhone 4 uses, so yes they are exactly the same. However, be careful because if your on a prepaid data plan on your Micro-SIM, and you use this in the iPhone 4 to make calls you will be up for a fortune.
 
fjfjfjfj said:
Thank you for asking, I didn't know the answer to this either.
Click to expand...

I thought the words "Micro-SIM" in relation to the iPad and iPhone 4 would have made this very clear - hell you can even tell by the SIM card size and the tray size as well. Not hard to find this information.
 
My guess that it will work as well as an ATT prepaid phone SIM works on the iPhone 3GS... in other word it does not.

That said, it will be curious to see if an iPhone 4 microSIM works on the iPad -- not to make phone calls but to use data.
 
Chupa Chupa said:
My guess that it will work as well as an ATT prepaid phone SIM works on the iPhone 3GS... in other word it does not. That said, it will be curious to see if an iPhone 4 microSIM works on the iPad -- not to make phone calls but to use data.
Click to expand...

I also bought some (5) Micro-SIM to SIM adapters so if needed I can use my prepaid Micro-SIM cards in any standard mobile phone 🙂 - very handy indeed. The iPhone 4 Micro-SIM will work in the iPad but depends if its assigned as data or voice, and if using voice on a data sim - you'll burn through your credit in no time, plus the provider can tell this is being done so you may get a call from them.
 
ArmCortexA8 said:
I also bought some (5) Micro-SIM to SIM adapters so if needed I can use my prepaid Micro-SIM cards in any standard mobile phone 🙂 - very handy indeed. The iPhone 4 Micro-SIM will work in the iPad but depends if its assigned as data or voice, and if using voice on a data sim - you'll burn through your credit in no time, plus the provider can tell this is being done so you may get a call from them.
Click to expand...

Micro Sim cards come with adapters anyway, at least in the UK they seem to be.
 
Don't know about the US, since you seem to only have one option.

However, the tele-companies that offer iPad sims in Australia have in their terms and conditions, that it is ONLY to be used with the iPad. They would of known about the new phone... (developers knew the rename to iOS4 more than a month ago)

so I highly doubt iPad and iPhone4 sims are interchangeable.
 
Everyone here knows that a micro-sim 3FF is electronically the same as a standard size SIM card. Sooooo unless AT&T is checking the serial number of the micro-sim against the terminal, an iPad sim should work in the new iPhone 4.
 
I want use my 3GS with Voice & Data as I do now. I also want to use iPhone 4 for Data only from my iPad SIM that's unlimited.
 
How about this - using an AT&T micro-SIM from an iPhone 4 with unlimited data on an iPad 3G without an active data plan.

Physically I know it'll work (micro-SIM is a micro-SIM), but I wonder if AT&T will be able to easily detect it.
 
I think it's going to depend on the APN the new iPhone has factory set to connect to the internet. I can tell you this, however. I took the micro-SIM out of my iPad 3G (with an unlimited plan), and installed it into my iPhone 3GS with a micro-SIM adapter, and it "could not authenticate on the cellular network" (I forget the exact wording of the pop-up message). Therefore I couldn't use any kind of cellular data with my iPad SIM in an iPhone 3GS. I do know that the iPad uses a different APN than the iPhone, "broadband" APN (for the iPad) versus "wap.cingular" (for the iPhone), and on a stock, non-jailbroken AT&T iPhone, the settings to change the APN are disabled. So unless you can change the APN settings on the iPhone 4, I doubt it'll work.
 
chris975d said:
I think it's going to depend on the APN the new iPhone has factory set to connect to the internet. I can tell you this, however. I took the micro-SIM out of my iPad 3G (with an unlimited plan), and installed it into my iPhone 3GS with a micro-SIM adapter, and it "could not authenticate on the cellular network" (I forget the exact wording of the pop-up message). Therefore I couldn't use any kind of cellular data with my iPad SIM in an iPhone 3GS. I do know that the iPad uses a different APN than the iPhone, "broadband" APN (for the iPad) versus "wap.cingular" (for the iPhone), and on a stock, non-jailbroken AT&T iPhone, the settings to change the APN are disabled. So unless you can change the APN settings on the iPhone 4, I doubt it'll work.
Click to expand...
Good thought. You're probably right.
 
chris975d said:
I think it's going to depend on the APN the new iPhone has factory set to connect to the internet. I can tell you this, however. I took the micro-SIM out of my iPad 3G (with an unlimited plan), and installed it into my iPhone 3GS with a micro-SIM adapter, and it "could not authenticate on the cellular network" (I forget the exact wording of the pop-up message). Therefore I couldn't use any kind of cellular data with my iPad SIM in an iPhone 3GS. I do know that the iPad uses a different APN than the iPhone, "broadband" APN (for the iPad) versus "wap.cingular" (for the iPhone), and on a stock, non-jailbroken AT&T iPhone, the settings to change the APN are disabled. So unless you can change the APN settings on the iPhone 4, I doubt it'll work.
Click to expand...

You can change APN here. http://unlockit.co.nz
 
iPhone 4 micro sim in ipad 3g

xraydoc said:
How about this - using an AT&T micro-SIM from an iPhone 4 with unlimited data on an iPad 3G without an active data plan.

Physically I know it'll work (micro-SIM is a micro-SIM), but I wonder if AT&T will be able to easily detect it.
Click to expand...

This will be great. Everyone with an iPhone 3G or 3GS unlimited data plan will be grandfathered for an iPhone 4 upgrade if they continue paying $30/mo. So I really hope the iPhone 4 micro sim will work in an ipad 3G!
 
Verified it works. Took the iPhone 4 SIM and placed it into the iPad 3G tray, changed APN to wap.cingular. Works like a charm. It's annoying that both SIM trays don't work with each other which would make the swap a little less annoying.
 
Confirmed to work: iPhone 3GS with Voice & Data as I do now (micro SIM adaptor). iPhone 4 for Data only from my iPad SIM that's unlimited.
 
further question

traveling to france end of month
orange network has a prepaid 200meg ipad data card avail
i have the iphone4
assuming jailbreak/unlock avail by then would prepaid orange data card be used in iphone 4 for data only??
 
Can't get iPad Sim on Telstra Australia to work in iPhone 4 on data only!

I am working over in Australia for a couple of months and got the iPhone 4 on release in the UK on the 24 of June, the only micro sim available in Oz is for the iPad, so bought one with a view of using it for data purposes onlt on the Testra 3G network .... no joy, just keeps coming up with Invalid SIm, but previously was getting a signal, be it slight .... believe it has something to do with the network settings and configuration ..... can anyone help, achieved what I'm after or know for a fact its a lost cause???
 
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