This is a discussion on Help! iPhone says "No SIM card installed" within the iPhone forums, part of the Apple iPhone category; http://www.maclife.com/article/how_t...phone_sim_card...
Hi all,
I have been experiencing same problem quite for some time now, i have done everything suggested on this page now. Switched on and off , manual reset by pressing home and power buttons, restoring from itunes , removing sim and cleaning dirt particles, but no sucess, my sim works on other mobile but other sim wont work on mine ( I dont have contract with ATnT ). please help!
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you can check my blog post and confirm ..
This happened to me three times in the past three months. I solved it each time by rebooting (holding down home button on front and power button on top right). This last time it took a few tries.
Im in the UK, got my new phone today, got home put in the sim card yep you got it no sim card.
Just great £560.00 for the phone and i cant get it working, not very good start.
Back to the shop tomorrow let them sort it.
put my sim in from my other o2 phone that works OK but i don't get internet.
Oh well hope its sorted tomorrow.
but any help would be great.
thanks
I live in the SF Bay area, which has notoriously bad 3G network service, and my iPhone is about 9 months old. I went to sleep listening to music on my iPhone and woke up to the "No SIM installed" message.
I'm in favor of starting with the least invasive solutions first, so I did a few hard reboots. It didn't work.
I read about resetting network connections as a solution and was about to do that next when I read somewhere to try putting the phone into "Airplane Mode" and doing a hard reboot, then taking it off "Airplane Mode". THIS WORKED for me. As soon as I took it off "Airplane Mode" it redetected the network.