Tweaked iOS 5.0.1 (9A406) Fixes "Invalid SIM", "No SIM Card Installed" Errors On iPhone 4S

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  • ktmboy
    ktmboy Posts: 1
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    finally i had the same problem. now installed cstom ipsw from snowbreeze made on customozed ipsw and seems to be working .. wth... lol...
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  • Tc
    Tc Posts: 29
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    Have a 3Gs - after updating to 5.0.1 (9A405) - and activating > every now and then keep getting :Searching...No SIM InstalledNo Service*A NEW SIM from T-Mobile/Family Mobile did not helpA Network Reset seems to help it for a few days, weeks randomly - then it degrades again in-time and I have to do above again and loose all my WiFi passwords.Does 9A406 work for the 3Gs - Anyone???
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  • RD
    RD Posts: 4
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    Me having 9B179 IOS 5.1 but still facing this issue of Invalid SIM
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  • NC
    NC Posts: 3
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    I also have version 5.1 9B179. However after havig my iphone for around 3 months, suddenly experienced the problem of 'invalid sim' after leaving my phone for around half an hour. When I returned the error message had appeared. No one seems to be able to help with this problem. Already tried reboot, aeroplane mode turn off and reboot, and network settings reset with no luck.
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