Question about Apple iPhone 3G

10 Answers

No SIM card installed

I keep getting a "No SIM card installed" error massage. I can't do anything with my iPhone 3G. Tried restarting it, but no luck, took out the SIM & replaced it, also no good.

What can I do? I really don't want to go to the Apple store, it's still crazy there.

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  • djgnetz Aug 01, 2008

    There is no sim card installed but it still says "no sim" in the upper left corner. I can't make phone calls or go on the internet with this there. How do I get this off? Emergency 911

  • reytech317 Oct 16, 2008

    @ALL
    I have broken gold contact in my sim tray inside of my 3g iphone! the whole track is cut, could anybody post here the schematics of the iphone 3G so i could fix the NO SIM problem?
    WBR
    ReYteam.



  • Bill Cheatam May 06, 2012

    Thank you very much.. This solution worked immediately. I will probably get an upgrade anyway. Thanks again..

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I too have had the "no sim card installed message. What has always worked for me is to go into settings and put the phone into airplane mode for about ten seconds and then switch back to regular mode which causes the phone to reconnect to the ATT network. The sim message goes away. This is also a good fix for when your phone isn't connecting to 3G or showing an "E" instead of 3G.

Posted on Sep 24, 2009

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  • rdlola Nov 20, 2010

    This solved it right away--awesome tip, thank you so much for sharing!:)

  • elbeejohnson Jun 09, 2011

    Thank you! Worked right away.

  • Bill Cheatam May 06, 2012

    Thank you very much! The solution worked immediately.

  • maryanne Taylor
    maryanne Taylor Oct 30, 2013

    Help please! I tried this but it still says [no sim] what else can I do to get my phone working

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I had the same problem with my iPhone 3G. I took out the SIM card, tried to clean the contacts and noticed the SIM card still had a bit of warping on it. Gently removed the warping off the SIM card by bending it a bit then cleaned the SIM card contacts and it has never done the error since.

I believe this should solve your problem.
Good luck.

Posted on Jul 13, 2008

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I'd been having the same problem so I decided to call Bell and turn out all SIM cards with batch numbers ending in 07,08, and 09 are faulty and will go after about 10 months so I just had to take it back to a Bell store and they traded with me.

Posted on Mar 21, 2011

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The 'spit shine' technique solved this problem for me. There was a dirty fingerprint covering half the SIM. Thanks!

Posted on Jul 13, 2008

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U just update your iphone firmware.. u can find in internet how to update your iphone for free.. its verry easy.. u just download the firmware first,, then open itune 9 ,, hold shift then ,, find your firmwar that u allready download... and click restore,, finish.. wait until your iphone restore succesfuly... good luck.. (agung.budiarsa@yahoo.com)

Posted on Dec 07, 2009

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This will happen when you dont get service
take out sim from iphone and put it in another cell phone and make a call
then take out sim again and put it back in the iphone and try to make a call (you still might not see the bars). They will come up while your call is going thru.

Posted on Jan 13, 2009

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I get this when I drop phone even on SOFT surfaces just cm-then stuck re-setting it over and over and over for almost an HOUR-then finally works ok again. Pulled Sim out other week (friend did) and said it was wrecked and I need to go to store for new Sim card. Guess need to do that today since dropped it AGAIN and sick of this.

Posted on Sep 25, 2009

Take the phone to the Genius Bar at an Apple store. They should be able to fix you right up.

Posted on Jun 06, 2012

Ya.. no tht didnt solve anything 

Posted on Nov 01, 2008

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I jus cleaned the gold chip on my sim wid a lens cleaner .....its working absolutely fine now !!!!!

Posted on Feb 09, 2013

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