Question about Apple iPhone Smartphone
No sim card installed keeps appearing
Same thing happened to me. This happens when the phone does not get reception. When that happens the phone goes into no service and says "sim card not installed". The solution is to take out the sim card from your iphone put it in another phone and make a phone call. Then take the sim card out and put it back in the iphone and make a call. At first you will see it will still say no service, but when it says calling you will see that after a while (6 or 7 seconds) the bars come up and it will display your carrier name.
Posted on Jan 10, 2009
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Posted on Jan 02, 2017
Tips for a great answer:
Aug 14, 2011 | Apple iPhone 3G
Download the latest iTunes to your computer and reset the iPhone. Then re-sync it.
To reset iPhone, press and hold the Sleep/Wake button and the Home button at the same time for at least 10 seconds. During this time, a red "power off" slider may appear and the screen may go black, but do not release Sleep/Wake and Home buttons until the Apple logo appears.
If iPhone won't turn on, or the display freezes or doesn't respond
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.
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