HT201328: How to unlock your iPhone for use with another carrier

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VJ4APPLE

Q: SIM Not Valid Iphone 4S

Hi

 

I am using Iphone 4S factory unlocked bought it in US.

I used this phone with different networks in different countries (India and UK).

Now the problem is the Phone is working only for my India SIM which is strange.

It is not working with any other SIM except for my IDEA SIM.

getting a 'SIM Not Valid' mesaage when i try to use other SIM card.

 

Can some please help me in this regards.

 

Thanks

=Vijay

iPhone 4S, iOS 8.1.2

Posted on Jan 24, 2015 8:36 AM

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Q: SIM Not Valid Iphone 4S

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  • Helpful answers

  • by Lyssa,

    Lyssa Lyssa Jan 24, 2015 9:14 AM in response to VJ4APPLE
    Level 6 (17,893 points)
    Jan 24, 2015 9:14 AM in response to VJ4APPLE

    Did you buy the phone from an Apple store? Did you recently restore or update the phone?

     

    ~Lyssa

  • by VJ4APPLE,

    VJ4APPLE VJ4APPLE Jan 24, 2015 9:41 AM in response to Lyssa
    Level 1 (0 points)
    Jan 24, 2015 9:41 AM in response to Lyssa

    Thx for quick response Lyss,

    yes i bought it from istore couple of yrs back and it did work till mid of last year. when i did a restore in aug 14. it is working only for my India (IDEA) Network and my phone is absolutely fine with IDEA SIM.

    I checked with the carrier whether it has been locked by them. they confirmed that they did not lock.

    i tried restoring the phone couple of times. it did nt work.

     

    Please help me.

     

    -VIjay

  • by Meg St._Clair,

    Meg St._Clair Meg St._Clair Jan 24, 2015 9:43 AM in response to VJ4APPLE
    Level 9 (58,969 points)
    iPhone
    Jan 24, 2015 9:43 AM in response to VJ4APPLE

    Your phone was never properly unlocked by the carrier. It was hacked to unlock it. When you restored it, the hack was removed. You will need to contact the carrier to which it is locked and see if you qualify for unlocking.

  • by VJ4APPLE,

    VJ4APPLE VJ4APPLE Jan 24, 2015 9:55 AM in response to Meg St._Clair
    Level 1 (0 points)
    Jan 24, 2015 9:55 AM in response to Meg St._Clair

    Hi Meg ,,i bought this phone in US and I dont understand how this phone is locked to indian network carrier sim (IDEA). The Phone is still working fine with IDEA SIM. not sure why it doesnt work for other SIM cards after restoring..

  • by Meg St._Clair,

    Meg St._Clair Meg St._Clair Jan 24, 2015 10:07 AM in response to VJ4APPLE
    Level 9 (58,969 points)
    iPhone
    Jan 24, 2015 10:07 AM in response to VJ4APPLE

    Unless you bought an unlocked phone from an Apple store in the U.S. or had the U.S. carrier to which the phone was locked officially unlock it for you, the phone was hacked to unlock it. Hacking can have very unpredictable results.