SIM card not supported on unlocked phone...

Discussion in 'iOS 11' started by pred02, Feb 17, 2018.

  1. pred02 macrumors newbie


    Mar 15, 2017

    I have a iPhone 6s plus which I purchased of US Apple site unlocked. Have been using it with a SIM only plan with Three UK. Phone was once replaced at Apple UK store due to battery issues about 3 mnths ago.

    I am currently travelling in Argentina, I bought a local SIM card (Personel) and when I tried to insert got a Activation, followed by SIM card is not supported.I talked to Apple, they say I need to talk to my carrier (Three) as they claim my carrier locked it.

    Three UK are saying they have not locked it; but that I should update network settings to enale use of other SIMs ny plugging in via iTunes. Problem is I do not have my computer here.

    It’s all very bizzare and I am not sure will get a resolution. Any thoughts?

  2. bruinsrme macrumors 603


    Oct 26, 2008
  3. pred02 thread starter macrumors newbie


    Mar 15, 2017
    I have tried reseting the network settings, but still get the same issue. I didntry swapping out with an Argentian and my friend’s colombian SIM and still the same issue
  4. gahig ulo macrumors 6502a

    gahig ulo

    Nov 11, 2017
    riverside california
    you have internet connection when inserting your sim?
  5. pred02 thread starter macrumors newbie


    Mar 15, 2017
  6. niji Contributor


    Feb 9, 2003

    it sounds as the phone is locked, no matter what Three is telling you.

    in addition to using a 3rd party site (inputting your IMEI), there are 2 other ways to see if it is locked

    How to tell if an iPhone is locked or unlocked

    It's vital to know if an iPhone is locked to a specific network before buying it. (An unlocked iPhone can be used on any phone network, and is worth more money.) Here's how to check it's unlocked
    By Lucy Hattersley | 13 Feb 18


    Apple iPhones come in two flavours - locked and unlocked - and it's important to be able to check which sort you've got. An unlocked phone can be used on any phone network, while a locked phone can only be used on the network the phone is locked to.

    The iPhones you pay full price for (typically from the Apple Store) are unlocked by default. But an iPhone bought from a network, usually as part of an ongoing network plan, will be locked. This is normally for a set period, 18 or 24 months, and the cost of your contract covers part of the cost of the iPhone device.

    It's not possible to tell, just by looking at the handset, whether an iPhone is locked or unlocked: Apple does not allow other phone companies to brand iPhone devices. (You don't get Three- or EE-branded iPhones, for example.) To confuse matters even further, some phones are locked when sold, but are unlocked at a later date when the original owner has paid for the initial contract.

    But don't worry. It's relatively easy to find out if your iPhone is locked or unlocked, using either the Settings app or a SIM card.

    How to check if an iPhone is unlocked in Settings
    The simplest method of checking if an iPhone is locked or unlocked, and the one we'll use first, involves a quick look in the Settings app.


    You'll need to be able to power up the iPhone and access the cellular settings (you may need to enter the passcode). Follow these steps to check in iOS if an iPhone is unlocked:

    1. Open Settings.
    2. Tap Mobile Data > Mobile Data Options. (In older versions of iOS you will just have to tap Mobile - or Cellular, if the device is set to American English.)
    3. Check for an option named Mobile Data Network (or Cellular Data Network).
    If you see an option for Mobile Data Network then your iPhone is most likely unlocked. This option should not appear on locked iPhones.


    This method is not 100 per cent effective, however. If you need to know for sure - if you're buying a second-hand iPhone, for example, and want to know if you're paying a fair price - you should use a SIM card to check that it is unlocked. We'll walk through that method next.

    How to check if an iPhone is unlocked using a SIM card
    It's best to have two SIM cards, from different networks. One is usually the SIM card you own, and then other will be the one in the iPhone. Follow these steps to check that the iPhone is unlocked:

    1. Make a phone call using the current SIM card. Make sure it connects.
    2. Power off the iPhone. Hold down the Sleep/Wake button and use the Slide to Power Off option to switch off the iPhone.
    3. Use the SIM-card ejector tool (or a paper clip) to eject the SIM card from the iPhone.
    4. Insert your new SIM card.
    5. Press the Sleep/Wake button to wake up the iPhone.
    6. Make a phone call. Check that the iPhone can connect a call using the new SIM card.
    If the phone call does not connect with the new SIM card, then the iPhone is locked.
  7. Sfkassem macrumors newbie

    Sep 30, 2012
    I Had the same issue before. I had to contact apple, and they escalated to a senior advisor who then confirmed that it was swapped. Once they do that they move the profile from the old phone to the new phone. Make sure you have the info from the old phone like the IMEI. They will then make a ticket to the engineering dept who will move the profile from the old phone to the new and you will be unlocked again. takes a few hours
  8. pred02 thread starter macrumors newbie


    Mar 15, 2017
    Thank you. confimer this worked.

    Need to speak to senior advisor and tell them activation policy was not transfered when my phone was replaced by Apple. It took 24 houra after which I erased the phone and it is workong now fine with other providers. Thanks all for your support

Share This Page

7 February 17, 2018