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  • 105. Re: iPhone 4S verizon unlocked for overseas use without roaming
    Entropee Level 1 Level 1 (15 points)

    As promised, I'm updating my previous posts after my trip abroad. To summarize, I have an iPhone 4S purchased from Verizon that was on the Verizon network, I upgraded to an iPhone 5, & took the 4S off the Verizon network. I wanted to use a SIM card in the 4S while traveling abroad in China with a local cell phone carrier & there was some dispute as to whether it is possible. Wel, it is, but perhaps with some caveats. Originally I bought a China Mobile (GSM network only) SIM card from Telestial &, upon arriving China, found it did not work. I went to China mobile & they could not help me get it to work. I went to China Unicom (also GSM network only) & tried one of their SIM cards &, again, it did not seem to work. Finally I went to China Telecom (CDMA network) & tried one of their SIM cards & it worked. I was able to use both voice & data without any problems. So, it seems that it is possible to use a SIM card from a foreign cell phone carrier in the (CDMA) iPhone 4S, but perhaps the SIM has to be from a cell phone company on a CDMA network - at least that was my experience. I don't know if this was an issue specific to China, but I'd be interested to hear other's experiences in other countries. If this is true, then it would probably be difficult to use this phone in Europe, for example, where almost all carriers are on GSM networks.

  • 106. Re: iPhone 4S verizon unlocked for overseas use without roaming
    KiltedTim Level 8 Level 8 (37,815 points)

    CDMA networks do not use SIM cards. SIM cards are used for GSM carriers only. Something got lost in the translation somewhere.

  • 107. Re: iPhone 4S verizon unlocked for overseas use without roaming
    KC7GNM Level 4 Level 4 (2,720 points)

    I have read this thread and he just don't get that CMDA does not use the sim card slot at all. In fact my sprint phone has a sim in for international roaming yet I can remove the sim and still use it without any problems here in the states. The SIM is used for GSM networks only. CMDA uses the IEMI number to register the phone on their network.

  • 108. Re: iPhone 4S verizon unlocked for overseas use without roaming
    Meg St._Clair Level 8 Level 8 (38,425 points)

    Some CDMA2000 networks in Asia use something that is sometimes called a "CDMA SIM". I wonder if that could have been part of the confusion? Verizon phones can't make use of such a SIM, of course. (However, Verizon does have roaming agreements with the Chinese CDMA carrier.)

  • 109. Re: iPhone 4S verizon unlocked for overseas use without roaming
    Entropee Level 1 Level 1 (15 points)

    CDMA networks absolutey DO use a SIM card with some phones. Try taking the SIM card out of a Verizon iPhone and then use it. You will see that it does not work. You must have the CDMA SIM card in the iPhone in order for it to work.

  • 110. Re: iPhone 4S verizon unlocked for overseas use without roaming
    KiltedTim Level 8 Level 8 (37,815 points)

    Sorry. You're wrong.

  • 111. Re: iPhone 4S verizon unlocked for overseas use without roaming
    Entropee Level 1 Level 1 (15 points)

    Tim, I beg to differ with you. I had this very conversation with Verizon about using my iPhone 5 abroad. They stated that, upon returning to the states, I must put the SIM card that came with my iPhone back into my phone in order to use the iPhone on the Verizon network once again. Why would Verizon tell me that I must put the SIM card back into my iPhone when in the states if this was not necessary? And incidentally, didn't you repeatedly tell me that I would NOT be able to use my iPhone in China? You were so absolutely certain about this and you were wrong. Why do you post comments with such certainty when, in fact, you are not certain. You mislead people. Get a little humility, would you?

  • 112. Re: iPhone 4S verizon unlocked for overseas use without roaming
    Stephen Longworth Level 1 Level 1 (0 points)

    Entropee. I can absolutely refute your claim about Verizon network and iphone 4S. I've been using my iPhone 4S, on Verizon's network, with an empty SIM slot for six months. It works just fine.

     

    I'm not sure what your experience in China means, unless perhaps your iPhone isn't "SIM unlocked" and perhaps Verizon and China Telecom have some working agreement, who knows.

     

    What I can tell you, with absolute certainty, is that (1) on Verizon's CDMA network you do not need anything in the SIM slot for it to work, and the ONLY reason the Verizon iPhone comes with a Verizon SIM card installed is so that you can ROAM in foreign countries and pay the exhorbitant fees associated therewith

     

    AND (2) IF your iPhone is truly "SIM unlocked" you can install the GSM SIM card from any carrier in whatever country you're in and the phone will default to that network and function just fine.

  • 113. Re: iPhone 4S verizon unlocked for overseas use without roaming
    deggie Level 8 Level 8 (46,525 points)

    That is because you have an iPhone 5 and accessing Verizon's LTE cell data network requires a nanoSIM. This thread is about the 4s.

  • 114. Re: iPhone 4S verizon unlocked for overseas use without roaming
    Stephen Longworth Level 1 Level 1 (0 points)

    Entropee, you may well have been told this by a Verizon employee, HOWEVER, my experience is that not all Verizon employees know what they're talking about. When trying to get my iPhone SIM unlocked I got contradictory information from two people at Verizon. Even the second one, who gave mostly good info about SIM unlocking gave incorrect details about the procedure, which fortunately turned out to be LESS complicated than she indicated, not more.

  • 115. Re: iPhone 4S verizon unlocked for overseas use without roaming
    Meg St._Clair Level 8 Level 8 (38,425 points)

    Stephen Longworth wrote:

     

    Entropee, you may well have been told this by a Verizon employee, HOWEVER, my experience is that not all Verizon employees know what they're talking about. 

    In this case, however, they knew precisely what they were talking about. As deggie points out, an iPhone 5 requires a 4G LTE SIM from Verizon in order to work in the U.S.

  • 116. Re: iPhone 4S verizon unlocked for overseas use without roaming
    Stephen Longworth Level 1 Level 1 (0 points)

    and as deggie also points out, this thread is about the 4S not the 5 . . .

  • 117. Re: iPhone 4S verizon unlocked for overseas use without roaming
    Meg St._Clair Level 8 Level 8 (38,425 points)

    Stephen Longworth wrote:

     

    and as deggie also points out, this thread is about the 4S not the 5 . . .

    The point being, Entropee did not get any incorrect information, as you seemed to be implying.

  • 118. Re: iPhone 4S verizon unlocked for overseas use without roaming
    Stephen Longworth Level 1 Level 1 (0 points)

    actually, Meg, if you read my post, I wasn't implying anything, but simply relaying my experience that one cannot always trust the information one gets from Verizon call centers. Entropee in fact asked the somewhat rhetorical question, quote "Why would Verizon tell me that I must put the SIM card back into my iPhone when in the states if this was not necessary?" unquote. . .

     

    My post was an answer to that question, namely that information gleened from one phone call to Verizon is not definitve, and should not be absolutely trusted. The fact that in this case the information WAS indeed good in no way invalidates my word of caution.

    Given the level of confusion here, and the categorical statements being made on the basis of what in a court of law would for good reason be considered "hearsay" I thought it wise to caution one and all about trusting certain sources.

    Hence my reporting of my own experience of which I'm certain.

     

    Troubleshooting 101. . .

  • 119. Re: iPhone 4S verizon unlocked for overseas use without roaming
    KiltedTim Level 8 Level 8 (37,815 points)

    Entropee wrote:

     

    Tim, I beg to differ with you. I had this very conversation with Verizon about using my iPhone 5 abroad.

    The iPhone 5 is a different animal. The Nano-SIM is required to connect to the Verizon LTE network. The 4S does not have an LTE radio. Service in the US is strictly CDMA, which does not use a SIM at all.

     

    You mislead people. Get a little humility, would you?

    I suggest you try paying attention and brushing up on your reading comprehension skills.

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