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will the Sprint model work on Verizon and vice ...

4th Generation Ipad. 

Will the Sprint model work with Verizon and vice versa?  I understand they are both CDMA

I see different prices out on the web

Thank you for the clarification, this answers my question.  Much appreciated.

No.  As far as CDMA goes, a given device will only ever work on the one single CDMA network it is sold pre-configured for.  There is no way to alter the CDMA configuration to allow it to connect to an alternate network as CDMA.

The GSM side of those devices is unlocked though, and should work on any compatible GSM netowrk.

so- just so I understand then.

I could use a Sprint model only with Sprint, but with any GSM network such as AT&T

Yes, an iPad 4 model A1460 has both a CDMA radio and a GSM radio (https://support.apple.com/kb/SP662).  The CDMA radio will only ever connect to the one CDMA network the device was configured for at the time of sale.  However, the GSM radio will work for an GSM service provider, if they support iPad data plans and support the frequencies available on the A1460 iPad.

A GSM device gets all of its network connection information from the SIM card itself, while a CDMA radio requires certain key information be burned into the firmware before it is sold for use.  That firmware information effectively cannot be altered or changed afterwards.

The same thing applies to the new iPad Air, except the iPad air is only sold as a single model with CDMA and GSM capabilities (where as the iPad 4 was available as two models, one CDMA/GSM and one GSM-only).  With the iPad air, a Sprint or Verizon model will only ever work with the one, pre-configured CDMA network, but any GSM network.  An AT&T or T-Mobile iPad Air will never work with any CDMA carrier (as they have nothing in their firmware to support any CDMA network) but will work with any GSM carrier.

Thank you for the clarification, this answers my question.  Much appreciated.

You are welcome - good luck with your purchase!

To clarify further, the CDMA network is where the LTE comes in, correct? 

Because I have a Sprint iPad 4 (ME411LL/A) with a Verizon LTE SIM card in it and can get decent 3G, but no 4G LTE.

As I posted elsewhere:

I bought an "unlocked" Sprint Gen4 iPad 128GB (ME411LL/A) for cheap and was hoping to use it on Verizon (my family plan). So far it's a bust. The Verizon Store and Customer Support won't touch it!

I found online that folks are taking active Verizon 4G LTE SIM cards and popping them into other LTE devices and having success.

I just happen to have a Verizon JetPack 4G LTE hotspot. I pulled the mini-SIM, cut it down to micro (re-verified it still works in the hotspot) and popped it into the iPad. I can get Verizon 3G, but no better.

Any thoughts?

I also found that Verizon LTE is 700 MHz and Sprint LTE is 800 MHz. Is this a showstopper?

If I cannot get LTE to work, I will sell it to a real Sprint customer.

CRAP! Just re-read your question and saw iPad 4, not iPad MINI 4! Well, gonna leave this here in case other people want to read it.

Pretty sure the other answer you've been given is wrong.  For the iPad Mini 4 with Cellular, there is only *one* model, which is A1550.  There is not a "Verizon model" and a separate "Sprint model" (or AT&T or T-Mobile for that matter.)

Apple has a habit of selling one device in different 'boxes' (well, sticker labels) saying they're for Sprint, Verizon, or whatever, but they all usually are interchangeable.  For instance, in the Apple Store I bought the "T-Mobile" iPad Mini 2 because they had them in stock but didn't have "Verizon" models.  Even the Apple Store rep told me they wouldn't work with Verizon.  I opened the box, popped in my Verizon SIM and started surfing.  He was impressed!  He later found out the branding on the box referred to the SIM card that shipped in the box (this was pre-Apple SIM days), not the device itself.

You can double-check this information yourself on Apple's page here, or you can just read the following from another site stating the same thing...

"The single iPad mini 4 model with cellular support -- the iPad mini 4 (Wi-Fi/Cellular)(A1550) -- ships unlocked with support for UMTS/HSPA/HSPA+/DCHSDPA (850, 900, 1700/2100, 1900, 2100 MHz); GSM/EDGE (850, 900, 1800, 1900 MHz), CDMA EV-DO Rev. A and Rev. B (800, 1900 MHz), and LTE (Bands 1, 2, 3, 4, 5, 7, 8, 13, 17, 18, 19, 20, 25, 26, 28, 29, 38, 39, 40, 41)."

Apple even sells it with the Apple Sim which is a special SIM card that can be configured to work on any of the above carriers and you can activate it right on-device. No need to visit your carrier and get one from them.You can even switch carriers right on the device.  Try Sprint and if you don't like it, switch to Verizon, etc. (I believe AT&T is the lone exception because they have an arrangement with Apple where they dictated once you switch the sim to AT&T service, the SIM locks and can't be changed again. That's a purely business limitation, not technical. Note though that is the Apple SIM that gets locked, not the iPad itself. You can simply replace the Apple SIM with a SIM from your carrier. The iPad is hardware-unlocked and supports *all* carriers.)

Now if you're not getting LTE support, chances are it's your SIM. Just go to your carrier and say you need a new one that will support the iPad.  If you turn in your old one, they may even skip the (stupid/useless/rip-off) 'Activation Fee' (which is a joke!)

One last thing regarding CDMA.  The other poster is *partially* right.  While there is no *technical* difference between devices, they do have a baked-in hardware CDMA ID and that ID is registered to a particular carrier.  But that is for identification purposes only.  That's how for instance, your carrier knows which phone you have.  However, that's also only if you're connecting to the older CDMA network.  That doesn't apply when you're using a SIM card and connecting to LTE.  And even then, Verizon has publicly commented that they will start to accept any technically-compatible hardware, meaning they are agreeing to simply add the CDMA identifier of your device to their system so they too can now recognize it.  Think of that more as a serial number.  But again, that doesn't limit *where* it's used.

Hope this helps!

最后更新：2017-10-16 13:20:53

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