Fourth generation iPhone. Repair is straightforward, but the front glass and LCD must be replaced as a unit. GSM / 8, 16, or 32 GB capacity / Model A1332 / Black and White.

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SIM Failure, invalid SIM or no SIM card installed

This is a factory unlocked Apple iPhone 4. It always shows the error "SIM Failure, invalid sim or no sim card installed."

How can I fix it?

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where did you buy the phone?

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Black Friday
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Try going back to your telecom company and have them replace your sim card. That will typically remedy the issue.

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Did you tried this solution? it worked fine for my iPhone 4 here http://www.unlockboot.com/2013/06/fix-no...

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I am sufyan sarwar and mere pas I phone 4 a332 hai plz help me

SIM Failure, invalid SIM or no SIM card installed

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I also had the same problem, and I had to get a new iPhone 4.

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how to sim unluck i phone 4 sim failure iphone 4

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Well, there are some ways to try. You can try another SIM card. Turning the phone off and on. If it's a factory unlock, you can do a restore in iTunes, and you won't lose you factory unlock

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