Searching.after IOS 6 iPhone Update - Lost Signal completely?

Have just updated my iPhone 4S to IOS 6, and now have lost my network completely. Instead of Orange i now have "Searching… ".

I have gone to settings > general > reset > reset network settings
and also "reset all settings", still nothing…

Anyone else experienced this?

Yes, almost exactly the same problem. Since updating iPhone 4 to iOS6, my phone is now unable to retain a signal in relatively weak areas (indoors), whereas it was fine before. I'm on the Three network.

It spends most of it's time now "Searching… " or "No Service".

Resetting phone and/or removing/replacing SIM makes no difference. Selecting Carrier manually also doesn't help, just results in a missing carrier message!

This can't be a network issue, because I've had no problems in this exact location for months!

Mine is always searching!
Have you find the answer?

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