Question about Apple iPhone 3G

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I have an iphone that display's No SIM at the upper left corner I cannot get internet

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You will have to unlock your phone. Search google for the appropriate software to jailbreak and Unlock your iphone. For example: Iphone 3g 3.1.2 jailbreak unlock

Posted on Feb 26, 2010

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Posted on Jan 02, 2017

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1 Answer

How do I find out if my iphone is locked to a network.?

if it says no sim or sos only in top left corner after u put sim in. to find out which go settings>general>about>network

Mar 10, 2015 | Apple iPhone 5

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Ipad air says Invalid SIM in upper left corner? not sure what it means or to do to fix it

The most common reason for this is that the SIM needs to be taken out and reinserted. I put a link below to show how to do it. What it means is that their is a problem with your SIM card, and it might just be a lousy electrical contact issue, but it could be faulty too! You may have to contact Apple to get a replacement. Also, you must be in a country where that SIM is supported. Please read the following links.

Remove the SIM card from your iPhone or iPad

Jan 05, 2015 | Tablets & eReaders

1 Answer

IPhone 4 says invalid sim in upper corner

Hi , your iphone does not seem to be jailbroken , did you recently upgraded to 4.3.3 ? if yes you have to jailbreak the phone and run ultrasnow on it , message me if you also want help with it

May 22, 2011 | Cell Phones

1 Answer

After i inserted my sim card, there is a note at the upper left corner NO SERVICE. pls help me

Do you have a factory unlocked iPhone?
If yes, try to toggle the airplane mode on and then off.
Or you can also reset network settings.

Check also the sim, it might have loosely placed..
Let me know if this works or not so I can give you other suggestions.

Mar 12, 2011 | Apple iPhone Smartphone

1 Answer

My iphone keep no sim top left corner,it say no sim card installed I even change sim card from my other iphone same result (NO SIM)

u check is that compatibal , if it is it will work or else u pls jailbroke it from redsn0w and then install yellowsnow from cydia

Aug 22, 2009 | Apple iPhone 3G Black Smartphone

1 Answer

On my iphone top left corner it keep showing no sim

Try This:
1. Remove Sim Card
2. Hold in 'Home' button and 'On/Off' button together until Apple logo appears
3. Replace Sim Card
4. Hold in 'Home' button and 'On/Off' button together until normal phone screen appears.

Also, Try this:
1.) Shut down the iPhone 3G.
2.) Start up iTunes
3.) Hold down HOME button on the iPhone 3G
4.) While keeping the HOME button depressed, plug in the Sync cable
5.) A message will pop up to ask if you want to reset.
6.) Just click YES and the reset process should start.

Aug 22, 2009 | Apple iPhone Smartphone

1 Answer

No sim message on 3G iphone

Try re-moving and re-seating the sim card (take it out and put it back in.) Directions can be found here:

If that does not work call 1-800-MYAPPLE.

Nov 09, 2008 | Apple iPhone Smartphone

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