IPhone 4 invalid sim

Hi,
Late last year I returned my iPhone 4 to an Apple store as it was faulty. As it was out of warranty I paid a fee and had the phone replaced. I had not used this phone as I received an iPhone 5 at the same time. Today I went to set the phone up for a friend and it came up with a invalid sim card error saying "only compatible sim cards from a supported carrier may be used to activate iPhone. Please insert the sim card that came with your iPhone or visit a supported carrier's store to receive a replacement sim". I have tried two different sims and receive the same message. What is going on? and is this phone even going to be covered by warranty anymore (90 day service limited warranty?)

Being that apple have actually replaced the phone i have no idea who the provider would be (its definately not optus) trying to track down a telstra microsim now to try out as thats who the original phone was locked to before i had it unlocked (properly through telstra) so hopefully that works

Similar Messages

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    Dear sir
    I bought my iPhone 4 from Apple store in Charlotte N/C about 2years ago without contract.
    Now I tried to upgrade it to iOS 7.0.4.but after that my phone not work with last sim card.
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    Please tell me whats the matter?
    My phone serial no  86034HTCA4T
    Modem firmware  04.12.09
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    Without contract is not the same as unlocked. The update to iOS 7 relocked
    the iPhone to the wireless carrier to which it was originally locked. You must
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    If you used jailbreak or other hack to unlock the iPhone initially, the method
    used may prevent a legitimate unlock from succeeding and may render your
    iPhone unuseable.

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  • Thanks this was very useful.. I have a brand new iphone 4s unlocked version from singapore and I am having the same problem constant network fluctuations, no service, call failed, invalid sim, sim failure, bars fluctuating from 5 - 3 - 2 - 1, no signal/ba

    I have a brand new iphone 4s unlocked version from singapore and I am experiencing constant network fluctuations on my iphone , no service, call failed, invalid sim, sim failure, bars fluctuating from 5 - 3 - 2 - 1, no signal/bars searching etc... Ifeel miserable after trying out all the options changed multiple sims, tried multiple carriers, restored the phone back and have set-up as new device but the problem does not get solved... its is so frustrating that after investing on a world's most expensive phone you cannot enjoy the calling features which the phone offers which is the main thing you own the phone for.. Rest of the things are working.. The funniest part I am not able to make calls or receive calls but can access the internet..  I have tried every possible thing and really very frustrated with this iphone of mine...I hope the problem gets solved.. would anyone have any solutions to this problem.. Does it mean one should never update software as I hear that after updating to IOS.5.1 the problem has started coming and same has been with there.... Apple says its a hardware failure which is very difficult to digest as sometimes I get 5 bars and able to make and receive calls but 95% of the time I am unable to. If anyone has any solution I will be very happy if he or share can share the same. Many thanks. its so disgusting to experience this on top of this apple does not support global warranty for the phone as you need to go to the country from where you bought the phone for replacement.. Truly sad state of affairs.. very very very dissappointing.

    Have a look at this it might help
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  • I would like to know how to get my iphone on if it goes into a no service mode and shows as invalid sim, I would like to know how to get my iphone on if it goes into a no service mode and shows as invalid sim

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    actually I found the solution :
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    Robin
    iPhone 4, iOS 7.0.2, iTunes 11.1.1
    <Personal Information Edited by Host>

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