1. Shanicenicolle's Avatar
    I see a lot of you posting incorrect information and wanted to clear the air. A 3G sim will not work in an lte phone. There is most definitely a difference. But an lte sim will work in a 3G phone. That's why some of you are able to swap between certain devices and others cannot. I run into this issue with customers getting loaner phones almost everyday.

    Sent from my SAMSUNG-SGH-I747 using Android Central Forums
    smooth4lyfe likes this.
    11-13-2012 10:52 PM
  2. smooth4lyfe's Avatar
    I see a lot of you posting incorrect information and wanted to clear the air. A 3G sim will not work in an lte phone. There is most definitely a difference. But an lte sim will work in a 3G phone. That's why some of you are able to swap between certain devices and others cannot. I run into this issue with customers getting loaner phones almost everyday.

    Sent from my SAMSUNG-SGH-I747 using Android Central Forums
    Thanks for the info

    U work with AT&T?
    11-14-2012 12:18 AM
  3. bobbyp5's Avatar
    I was always curious about this one. Because they used my 4S sim card in my galaxy 3 when I upgraded.
    11-14-2012 09:08 AM
  4. Shanicenicolle's Avatar
    Thanks for the info

    U work with AT&T?
    Best buy mobile, but we sell att phones (obviously :P)

    Sent from my SAMSUNG-SGH-I747 using Android Central Forums
    11-14-2012 01:06 PM
  5. Shanicenicolle's Avatar
    I was always curious about this one. Because they used my 4S sim card in my galaxy 3 when I upgraded.
    Yea most of the 4S had the newer lte cards

    Sent from my SAMSUNG-SGH-I747 using Android Central Forums
    11-14-2012 01:07 PM
  6. anon(153966)'s Avatar
    So this explains why I can put my Samsung Galaxy S3 SIM card into my iPhone 4s without having to call AT&T.

    Thanks for clarifying...
    11-15-2012 08:50 AM
  7. runtohell121's Avatar
    Sorry to say, but there is absolutely no difference between 3G sim card and LTE sim card. In my Samsung Galaxy S3, I'm using my old iPhone 4 sim card and it still works fine. All you have to do is switch the data plan from iPhone to LTE. It's the data plan that matters, not the sim card. I went into AT&T and ask about if I needed a new "LTE" sim card and they told me that only the data plan needs to be changed in order to have functioning data for your new LTE phone.

    So this explains why I can put my Samsung Galaxy S3 SIM card into my iPhone 4s without having to call AT&T.

    Thanks for clarifying...
    Data plan is incompatible.
    11-15-2012 12:59 PM
  8. Shanicenicolle's Avatar
    Sorry to say, but there is absolutely no difference between 3G sim card and LTE sim card. In my Samsung Galaxy S3, I'm using my old iPhone 4 sim card and it still works fine. All you have to do is switch the data plan from iPhone to LTE. It's the data plan that matters, not the sim card. I went into AT&T and ask about if I needed a new "LTE" sim card and they told me that only the data plan needs to be changed in order to have functioning data for your new LTE phone.



    Data plan is incompatible.
    There IS a difference lol but you can believe what you choose.

    Sent from my SAMSUNG-SGH-I747 using Android Central Forums
    goestxx310 likes this.
    11-15-2012 05:52 PM
  9. dhughes's Avatar
    From my understanding you need the newest sim card that does not have the 3G logo on it to get LTE. The new ones just have the at&t logo on them. It also needs to be on your plan as lte whatever as well. The newer ones will work for all phones 3G 4G hspda and 4G LTE.

    Sent from my SAMSUNG-SGH-I747 using Tapatalk 2
    11-15-2012 07:16 PM
  10. anon(153966)'s Avatar
    All I know is I have an old SIM from when the iPhone 4 was released and on my account I have the LTE data package.

    Without calling AT&T I can place my SIM from my Samsung Galaxy S3 into my iPhone 4s and the data works, period. I do this a few times a week, thus no call to AT&T is needed.

    Now if I could do the same with BlackBerry 10 upon release, I'd be happy...
    11-15-2012 08:34 PM
  11. umpirerob's Avatar
    Just because your 4S wasn't LTE doesn't mean the SIM wasn't... All new AT&T SIMs were LTE compatible before the network launched.

    Sent from my HTC Mecha using Tapatalk 2.
    11-15-2012 08:44 PM
  12. Shanicenicolle's Avatar
    Just because your 4S wasn't LTE doesn't mean the SIM wasn't... All new AT&T SIMs were LTE compatible before the network launched.

    Sent from my HTC Mecha using Tapatalk 2.
    Exactly what I was saying!

    Sent from my SAMSUNG-SGH-I747 using Android Central Forums
    11-15-2012 09:26 PM
  13. Antrevia Purvis's Avatar
    I just bought a Galaxy not I717 and at first it was working and then all of a sudden i received a No Sim Error message. I change out the sim port and tried again and still not working.its not the sim because i am using it now in my daughte iphone 3 but it state 3g. If i get a 4G LTE sim card do you think it will work?
    05-07-2014 02:44 PM
  14. graewulf1's Avatar
    This is confusing. Of course a 3g SIM won't work In a 4g phone. They are different sizes physically and the 3g won't fit in the 4g device.

    Sent from my SM-P600 using Tapatalk
    05-09-2014 05:55 AM
  15. Praise Yah's Avatar
    Hello would you know if a 3g sim card from my motorola droid 2 will work with Samsung Galaxy Nexus SCH-I515, or Samsung Galaxy Note 3?
    Thanks for your help!
    08-25-2014 07:07 PM
  16. bsnrich's Avatar
    I have a galaxy s 4 LTE and the home botton broke. I purchased a simcard adapter and inserted it in my old 3G galaxy s 2. even though the reception bar shows good reception, when I try to make a call, I get a "not registered in the network"message. Is there a solution for this situation??????
    01-27-2015 10:48 AM
  17. Simon Bromilow's Avatar
    There IS a difference lol but you can believe what you choose.

    Sent from my SAMSUNG-SGH-I747 using Android Central Forums
    Correct as an LTE sim is a 4G sim that is backwards compatible with 3G. If like in the previous post about data plan was the only issue thats because you had an LTE sim with a 3G plan to begin with. A 3G sim has to be replaced for a 4G (LTE) plan
    05-05-2017 12:12 AM
  18. Shanicenicolle's Avatar
    Correct as an LTE sim is a 4G sim that is backwards compatible with 3G. If like in the previous post about data plan was the only issue thats because you had an LTE sim with a 3G plan to begin with. A 3G sim has to be replaced for a 4G (LTE) plan
    This post was from 2012...
    05-05-2017 01:07 AM

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