SIM Failure and No Service

Just trying to see if there's a fix for this.
Several months ago I was having this problem, it went away and now it seems to have surfaced again. It started this past Saturday and I'm not sure why or, what to do about fixing it. My phone will sporadically display the message 'SIM Failure' and then where the Verizon logo and signal bars are, 'No Service' is displayed. If I power down and restart the phone, it does 'Searching' a bit before finally showing he bars and VZN logo. Sometimes it will maintain that for an hour or so before another SIM Failure message, sometimes, I immediately get the message and have to restart my phone over again.
I didn't think these VZN iPhones had SIM cards, I thought we were CDMA or something like that. I've had the phone since February so I don't know if this is a device issue or a software issue and I'm trying to figure out if I should try to return it before my 1 year warranty thing is gone.
I'm on 6.0.1 (10A523) version of iOS so I believe I'm current as far as updates to the phone go.
Any help/information/guidance would be greatly appreciated.

It sounds like both of you have tried some great steps to research what's going on with the SIM errors on your iPhone 4s devices. The Version 6.0.1 (10A523) is the most recent software from Apple. And although you don't use the SIM on the Verizon Wireless CDMA technology here in the United States, the iPhone 4s come with the awesome capability to use a SIM card for global GSM services too. Which is why you're seeing messages about a SIM. You can check out http://bit.ly/zXnl81 to see where the SIM is on your phone and how to remove/reinsert it to try to refresh it's connection to the phone.
There's also a wonderful support article from Apple at http://support.apple.com/kb/ts4148 to help with every step you may need to take to resolve random SIM errors on the 4s. Many times just removing and reinserting the SIM will do the trick, but Apple also includes steps on how to restore your phone to ensure the error messages stop.
Thank you
JenniferH_VZW
Please follow us on Twitter @vzwsupport

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IPhone 4s and Sim failure and No service issue

Ok,
Few days back I asekd questions regarding few other issues with iPhone 4s. here is it, https://discussions.apple.com/message/17068754#17068754
Few gentlemen told me, to replace sim card. Here is what I did,
1) I am from India. I was using Vodafone 3g micro sim. Everyday, 4-5 times in the ideal mode I got messages like Sim failure and invalid sim. I have to restart my iPhone everytime. Then only it was working.
2) I posted the question, people said its my card problem
3) I bought new BSNL 3G micro sim card for iPhone. I inserted the card and got 3G working.
4) After 3 hours, I saw No service message. I waited for some time, i went to outside to see if it was a network issue. Nothing changed.
5) I rebooted my iPhone, it immediaetly picked the network.
6) After few hours, again it lost and said no service.
7) I then didn't rebooted it.
8) In the morning, I saw Sim Failure and invalid sim message. Useless
9) I now rebooted and Sim is working with 3G network.
Now please ,
is this iPhone issue? It is for sure. I am tired now. Battery is dying and with this Sim Failure and No service, I am totally disappointed.

Hi Ahelpyguy...
I read all your messages above , I am facing the same problem as u faced.
My Iphone 4S and it was working fine (5.0) until i upgrade to 5.0.1(9A406).
Now I am facing alot of network issues. I get messages liek NO Sim , SIM FAILURE.
I even restored the sowftware from ITUNES but i am still facing the same problem.
I was using Vodafone first but I heard that due to problem in micro sim reader of Iphone 4s i shd use a 128 K or 64 K sim.. Since only Airtel provided 64K sim ...I installed that in my phone. But still i am facing the same issue.
I would appreciate if you can tell me whats Tweaked version of 5.0.1.
the current software installed on my phone is 5.0.1 (9A406).
Thanks
Prateek

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Most likely you have Office 2004 which are PPC-only applications and will not work in Lion. Upgrade to Office 2011. Other alternatives are:
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Commercial power failures and FiOS service interruptions

Severe weather reminder for our FiOS customers...
In the event of a commercial power failure, your FiOS battery backup will power your standard voice service for approx 8 hours. For additional information about the battery backup unit, click here for more info.
It’s possible that after electrical power is restored, you may still be without FiOS TV service. Sometimes resetting your Battery Backup Unit (BBU) is needed. Click here for more info.
For an automated wizard to help with FiOS restoration, click here.
Due to extreme weather conditions, there may be storm related power outages in your area. Your FiOS services will be affected until power resumes. If you do not have power please contact your local power company. If your power is restored and your FiOS services are still not working, you can report an outage, check status, request a new repair or update an existing repair online at www.Verizon.com/repair . If some of your Verizon services are working, but not all, you can use the In Home Agent application on your PC to troubleshoot and restore services. We apologize for any inconvenience.

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HELP!!

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hi guys,
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Kindly follow the below steps to avoid any SIM card conflicts
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All reasons given like bad IMEI series, manufacturing defects etc blah blah are not logical as everything was tested before every sale.

SIM Failure and No Service

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