HT202340: iPhone: Understanding SIM cards

Learn about iPhone: Understanding SIM cards
Gyatshola

Q: Since yesterday, I have upgraded my iphone 4s to 5.1.1. version, my bsnl sim card is not working. No sim card inserted signal is showing in phone. I even tried by re-inserting the sim card but it wont work. So please help...?

Since yesterday, I have upgraded my iphone 4s to 5.1.1. version, my bsnl sim card is not working. No sim card inserted signal is showing in phone. I even tried by re-inserting the sim card but it wont work. So please help...?

MacBook Pro, Mac OS X (10.7)

Posted on May 17, 2012 10:18 PM

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Q: Since yesterday, I have upgraded my iphone 4s to 5.1.1. version, my bsnl sim card is not working. No sim card inserted signal is s ... more

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