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T-Mobile's iPhone Is Unique Variant of AT&T's Model

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Not exactly accurate

PhoneMaster

Mar 26, 2013, 4:03 PM
From what I understand, once AT&T exhausts its on-hand stock of the A1428, it will start selling the "new" A1428 that T-Mobile will be selling as well. In other words, Apple will only be producing the "new" A1428 from now on. The new A1428 will be fully compatible with all of AT&T and T-Mobile's GSM, WCDMA and LTE bands.
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Charles Bigelow

Mar 26, 2013, 4:22 PM
The 1700, 1900 thing will eventually be ironed out. This is what happens when LTE comes further into the picture so to say. Interoperability.
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PhoneMaster

Mar 26, 2013, 4:33 PM
True, but I wanted to correct a misimpression one may get from the article, which is that the AT&T version will NEVER be compatible with T-Mobile. That statement is true for the A1428 being sold now, but eventually both carriers will supposedly be selling the same A1428 variant, at which point an iPhone 5 sold by AT&T should be fully compatible with T-Mobile.
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Charles Bigelow

Mar 26, 2013, 4:39 PM
Exactly. T-Mobile's AWS 1700 and AT&T's 1900 variants are the present issues at hand. Once LTE goes inter carrier-wide with networks and phones, this will be in the past.
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PhoneMaster

Mar 26, 2013, 4:45 PM
Ok, though again, that's not what I am saying.

What I am saying has nothing to do with LTE. I am saying that Apple will be quickly phasing out the current A1428 regardless of carrier and replacing it with a new A1428 variant that will support WCDMA1700 that will be shipped to all carriers currently selling the A1428, not just to T-Mobile.
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Charles Bigelow

Mar 27, 2013, 6:10 AM
OK, thanks.

I understand. Impractical though then. Why put AWS 1700 and 1900 on the same phone if eventually LTE will be the norm?? Just for now?
If AT&T would have merged with T-Mobile, then there would have been no worries in that department. So now they have to start tweaking a whole line of phones for interoperability on a network that is going to evolve into one LTE base in the future? Maybe I am missing something here.
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mikkej2k

Mar 27, 2013, 6:41 AM
Charles Bigelow said:
OK, thanks.

I understand. Impractical though then. Why put AWS 1700 and 1900 on the same phone if eventually LTE will be the norm?? Just for now?
If AT&T would have merged with T-Mobile, then there would have been no worries in that department. So now they have to start tweaking a whole line of phones for interoperability on a network that is going to evolve into one LTE base in the future? Maybe I am missing something here.

More time than the lifecycle of an iPhone which is a few years. If and when interoperability happens between carriers a LOT has to occur. READ THE ARTICLES. Technology has to produce a small enough radio chip that carries the LTE frequencies. Policy and/or law ...
(continues)
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Charles Bigelow

Mar 27, 2013, 3:07 PM
I have READ THE ARTICLES, thank you very much.
The chip will happen. Policy and/or law is another issue. People and corporations love politics. Hence the time factor.
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WiWavelength

Mar 27, 2013, 11:16 AM
Guys, all of you are "[n]ot exactly accurate."

The A1428 iPhone 5 variant has always possessed the physical capability for W-CDMA 2100+1700 (i.e. AWS). However, Apple implemented a software lock out to appease AT&T. The software lock out is being removed. Simple as that...

AJ
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