I'm trying to unlock an Iphone 4. The celular company allready unlocked it. and send me an E Mail with the instructions to do it myself. I have done every step, and in itunes apears that my Iphone is Unlocked. But I can not use a sim CArd from another Co

Question

I'm trying to unlock an Iphone 4. The celular company allready unlocked it. and send me an E Mail with the instructions to do it myself. I have done every step, and in itunes apears that my Iphone is Unlocked. But I can not use a sim CArd from another Co

Im tying to unlock an Iphone 4.

the celular company make it by its system, and send me an E mail with the instructions to finsh the process by myself, throug itunes.

I did every step, and at the end appers a message telling that my Iphone is unlocked.

but it does not work with other celular company sim card.

It only works with the original sim Card company.

In the Iphone appears a message teeling that has no service with another company's sim CArd.

I don't know what to do.

I've been doing this, with different Sim cards.

sometimes appears a message informing that the SIM card is locked with a PIN. That i must instal the last itunes version and connect it again.

but every Sim card I have are with PIN.

If you can help me I;ll be very glad.

Thank you very Much.

nicanorfrommon

iPhone 4, iOS 6.1.3

Posted on Jun 20, 2013 1:20 PM

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Answer 1

ChrisJ4203

Level 10

230,299 points

Jun 20, 2013 1:34 PM in response to nicanorfrommon

Try doing a restore on the device with the new SIM installed and see if that will activate.

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Answer 2

Jun 20, 2013 1:37 PM in response to ChrisJ4203

I;ve allready done this and it with more that one different Sim, and it does not works.

I have no signal from the new celular company.

I tested both Sim cards with other unlock celular and both works with no problem.

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Answer 3

ChrisJ4203

Level 10

230,299 points

Jun 20, 2013 1:44 PM in response to nicanorfrommon

You are sure the SIM cards are active? Since the device is working with the old SIM, and you are not receiving an error that the SIM is not supported, something else is wrong. Have you done a reset on the phone? Hold the sleep/wake and home buttons together until you see the Apple logo and then release. After this see if you get signal.

What company's SIM are you trying to use an an alternative to AT&T?

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Answer 4

Jun 20, 2013 2:56 PM in response to ChrisJ4203

Chrisj4203, thank you for your kind answer.

I have done a lot of restores to the Iphone, and resets also.

I;ve done holding both buttons as you sugested, but there is no signal appearing.

I am in Uruguay, South America and the original company is Movistar ( Telefonica) and the new sim card is from ANTEL ( the officail and biggest company in my country).

I don;t knoe what todo.

I have been trying for more than one mont.

I have gone several times to both companies. Aldo two times to Apple uruguay, and nobody can help me.

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Answer 5

ChrisJ4203

Level 10

230,299 points

Jun 20, 2013 3:01 PM in response to nicanorfrommon

In looking at this official list of wireless carriers http://support.apple.com/kb/HT1937, I don't see ANTEL. So, I'm not sure it is a supported carrier. What have the carriers done for you. It sounds like the phone does not support the bands that are used on the AT&T version of the iPhone 4. I would ask them for a new SIM, if that doesn't work, ask them to tell you what frequency bands they support, and then check the specs for the AT&T iPhone 4.

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