Database Info

same sim card getting LTE on one phone, only 1X/Spotty 3g on other

i posted this on another website's forum yesterday...sorry for those who read it twice, but i got no responses and am desperate.
so my launch day phone had a bit of an accident last weekend the screen cracked. I was able to get another thunderbolt from someone, was originally a refurb (tag under battery says "remanufactured in Philippines" )
any who I've been using the refurb one for about a week now, no major issues. But now today I can't get LTE at all...I've tried reflashing different radios, going back to sense over CM7...nothing. Put the same sim card in another phone right next to it, LTE.
What else can I do? thanks in advance

Have you installed an app recently that is messing up the phone? Have you checked to see if LTE is active on the phone? *#*#4636#*#* and check your phone info. Could always try flashing another radio.

Why does everyone start flashing radios and performing hard resets on their phones when a signal problem shows up? Wouldn't it be wise to contact Verizon first and make sure it isn't their problem? If you haven't changed anything on your phone, there's a 99% chance that verizon is having an off day.

nothing comes to mind that i would of installed that triggered this.
tried different radios.
called verizon to see what they can do. Looks like I can get a replacement phone shipped out. Now to return to stock. thanks.

djxstream said:
called verizon to see what they can do. Looks like I can get a replacement phone shipped out. Now to return to stock. thanks.
Click to expand...
Click to collapse
I'm surprised the VZW rep didn't tell you that it's because the 4G sim cards are paired with your phone. I tried to swap 2 4G phones on my account in the past and I was told that the 4G cards are associated to the phones and they would need to send me out new 4G sim cards. This was a while ago, so I'm not sure if it's still valid, but I would think that they'd have a way to re-link the sim cards on their end.
Good luck with this.

[Q] T-mobile on skyrocket

I was wondering if anyone could help me figure out whats going on. I got the tmobile\walmart plan for $30 that includes 5gigs of data a month at 4g speeds. My phone is unlocked and with the tmobile sim I am only getting edge speeds right out of the box, so I tried flashing various t989 modems with no luck. I would either get edge, or when I would try to goto apn settings it would say no sim installed. Right now Im using the Telus Kj3 modem, and still only getting edge. I am right in the middle of St. louis so I think getting tmobile 4g shouldnt be a problem. Also im on stock 2.3.6 rom. Any ideas?

Read the thread about this. Search
Sent from my SAMSUNG-SGH-I727 using Tapatalk 2

Ive been searching for two days, and have read about 35 different threads spread all over xda and the skyrocket forum regarding this problem and have tried a hundred different things. I need someone that has successfully gotten it to work that can point me in the right direction. Your advice of "search" does me no good. If I had found the answer, I wouldn't have created a new thread about it.

The thread you seek is in the general section. Good luck
http://forum.xda-developers.com/showthread.php?t=1507825
Sent from my SAMSUNG-SGH-I727 using Tapatalk 2

FYI - May be of interest to you: http://www.cellphonesignal.com/exclusive-first-official-pictures-of-the-galaxy-note-for-t-mobile/

Well apart from the search advice ... it's too simple
-unlock the phone with a purchased unlock code
-put T mobile SIM
-flash T Mbile blaze 4G radio using ODIN
-in Android set up the T mobile apn settings

It should of been simple but it wasn't. After days of trying different roms and modems, and reading every page on it, I had no luck. So I invited someone over with a tmobile 4g phone, and I put my sim in it, and that phone didnt get 4g either. Finally figured out it was on tmobiles end, called them, and they fixed the issue. Also, after flashing the blaze modems, my phone said no sim card. The telus modem is the one that worked for me.

speeddevil said:
It should of been simple but it wasn't. After days of trying different roms and modems, and reading every page on it, I had no luck. So I invited someone over with a tmobile 4g phone, and I put my sim in it, and that phone didnt get 4g either. Finally figured out it was on tmobiles end, called them, and they fixed the issue. Also, after flashing the blaze modems, my phone said no sim card. The telus modem is the one that worked for me.
Click to expand...
Click to collapse
so what was the issue? what did they do to resolve it? new sim card?

.dan said:
so what was the issue? what did they do to resolve it? new sim card?
Click to expand...
Click to collapse
+1
And it's always a good thing if somebody with a problem to disscuss here , would come back and say what worked for him/her so it can benfit the others

I had my wife call. I did not need a new sim. The first tech couldn't figure it out because he had her do things like take the battery out, and power cycle the phone which of course didn't work. So he escalated to a higher tech, which eventually tried "refreshing the signal." Wife said right after he did that, the 4g symbol came on my phone. Sadly though, Groove ip and talkatone don't carry a conversation to well while driving, even on 4g. I think I will try skype, and if that don't work I will have to switch my plan to something with more minutes.

speeddevil said:
I had my wife call. I did not need a new sim. The first tech couldn't figure it out because he had her do things like take the battery out, and power cycle the phone which of course didn't work. So he escalated to a higher tech, which eventually tried "refreshing the signal." Wife said right after he did that, the 4g symbol came on my phone. Sadly though, Groove ip and talkatone don't carry a conversation to well while driving, even on 4g. I think I will try skype, and if that don't work I will have to switch my plan to something with more minutes.
Click to expand...
Click to collapse
refreshing the signal eh? hmm i wonder if mine has gone stagnant..

It sounds weird I know... but kudos to the tech guy. Whatever he did, it worked. Rather it be that, or something else he tried.

Samsung Galaxy Nexus Data Connection Issues

I am having a weird issue with my Galaxy Nexus. Let me first say that it is entirely stock . I bought it the day after it was released and have loved it except for this issue.
I can be driving in the car with Spotify running playing music or at home just checking emails and all of a sudden it will just act like it is switching from 4G to 3G but it seems to get stuck. While this is happening no data being sent or received. It has bars but they are just grayed out. I went to Verizon and they said that it was something that happens with a lot of phones. I had never heard of this happening before and I just thought and still think that this chick was full of it. She said the way to fix it was to change the phone to airplane mode on then off and it would fix the issue faster then waiting on it. I told her I didn't get it because my friend bought a Galaxy Nexus the first day it came out and this never happens to him, also fully stock. Also I can be right next to him and he has 4 bars of 4G and I have 2 bars for 4G or even worse I will have like 2 bars of 3G. Also my friend has never had these issues.
So after all of this I ask VZW what the next move would be and she said I would have to do a factory reset and try another SIM card before being able to get a warranty replacement. I am wanting to know if anyone else has seen this or what others might think is the issue. I think it has something to do with the antennas for 4G/3G possibly being bad or faulty or something. I don't care about doing a factory reset but I know that is VZW bonk excuse to try before giving me a new phone.

Data drops have been quite the issue with the VZW Gnex. Factory reset or a sim card won't help. Just do what you have to do to get a replacement.

lowandbehold said:
Data drops have been quite the issue with the VZW Gnex. Factory reset or a sim card won't help. Just do what you have to do to get a replacement.
Click to expand...
Click to collapse
That is what I was kinda thinking. Just haven't had a free chance to make sure I have everything backed up and then do the wipe and get the new phone. I will see if I just tell em i did the reset that it didn't work and they can give me a new one. Rather just get the new one and possibly root it. Well thank for the input.

Getting Cell Service with NO SIM! And some other guys number ! Help

I just bought a phone the guy who made no mention of the fact that it was rooted when I bought it. What is worse is he mentioned that his GF worked for Verizon, which did not seem to mean much at the time. Knowing that here is what i'm dealing with.
I was in a rush when I checked out the phone as I had to meet another person to pick one up for my wife as well. It's the sch-i575 in white 16gb. After having a minute to look at the phone it turns out he had Paranoid Android flashed and the phone was rooted. CRAP! Not what I was looking for and he was not upfront about it. The incredibly strange thing was that with NO SIMCARD the phone was getting 3g signal! I spent all night trying to unroot \ undo what he did. I managed to use ODIN to get back to the stock rom although I think it's still a rooted one since I still have the super user app. I got a sim card from verizon but since it was rooted I did not bring the phone in and when I tried to activate later it would not activate. My wife's by the way is working flawless and when I put my sim in her phone it works fine as well. I had to put the sim in my wife's phone and it activated there. Here is the crazy thing, with or with out a simcard the phone makes calls and has 3g internet only but when I make a call it uses HIS NUMBER!! I'm not sure what the hell to do, what could have he done? Any ideas? Please all help is appreciated! I did not think this was even possible for the phone to function w/o a sim. I'm worried about taking it in to Verizon because of the funkiness. Ty again for any insight...

tekkski said:
I just bought a phone the guy who made no mention of the fact that it was rooted when I bought it. What is worse is he mentioned that his GF worked for Verizon, which did not seem to mean much at the time. Knowing that here is what i'm dealing with.
I was in a rush when I checked out the phone as I had to meet another person to pick one up for my wife as well. It's the sch-i575 in white 16gb. After having a minute to look at the phone it turns out he had Paranoid Android flashed and the phone was rooted. CRAP! Not what I was looking for and he was not upfront about it. The incredibly strange thing was that with NO SIMCARD the phone was getting 3g signal! I spent all night trying to unroot \ undo what he did. I managed to use ODIN to get back to the stock rom although I think it's still a rooted one since I still have the super user app. I got a sim card from verizon but since it was rooted I did not bring the phone in and when I tried to activate later it would not activate. My wife's by the way is working flawless and when I put my sim in her phone it works fine as well. I had to put the sim in my wife's phone and it activated there. Here is the crazy thing, with or with out a simcard the phone makes calls and has 3g internet only but when I make a call it uses HIS NUMBER!! I'm not sure what the hell to do, what could have he done? Any ideas? Please all help is appreciated! I did not think this was even possible for the phone to function w/o a sim. I'm worried about taking it in to Verizon because of the funkiness. Ty again for any insight...
Click to expand...
Click to collapse
It sounds like you didnt flash the proper stock image. I would start with that and report back.
http://forum.xda-developers.com/showthread.php?t=1755386

tekkski said:
I just bought a phone the guy who made no mention of the fact that it was rooted when I bought it. What is worse is he mentioned that his GF worked for Verizon, which did not seem to mean much at the time. Knowing that here is what i'm dealing with.
I was in a rush when I checked out the phone as I had to meet another person to pick one up for my wife as well. It's the sch-i575 in white 16gb. After having a minute to look at the phone it turns out he had Paranoid Android flashed and the phone was rooted. CRAP! Not what I was looking for and he was not upfront about it. The incredibly strange thing was that with NO SIMCARD the phone was getting 3g signal! I spent all night trying to unroot \ undo what he did. I managed to use ODIN to get back to the stock rom although I think it's still a rooted one since I still have the super user app. I got a sim card from verizon but since it was rooted I did not bring the phone in and when I tried to activate later it would not activate. My wife's by the way is working flawless and when I put my sim in her phone it works fine as well. I had to put the sim in my wife's phone and it activated there. Here is the crazy thing, with or with out a simcard the phone makes calls and has 3g internet only but when I make a call it uses HIS NUMBER!! I'm not sure what the hell to do, what could have he done? Any ideas? Please all help is appreciated! I did not think this was even possible for the phone to function w/o a sim. I'm worried about taking it in to Verizon because of the funkiness. Ty again for any insight...
Click to expand...
Click to collapse
I thought the I575 was an old slide phone. So A. your in the wrong section of the forum since this is Verizon's S3 or B. you mentioned the wrong device number? I saw phones before working and running on networks without sim-cards but that was years ago. If it is an S3, you sure it's a Verizon device? Also since you see 3g....can you browse around in the browser or make a phone call?

ctsr
galchristian said:
I thought the I575 was an old slide phone. So A. your in the wrong section of the forum since this is Verizon's S3 or B. you mentioned the wrong device number? I saw phones before working and running on networks without sim-cards but that was years ago. If it is an S3, you sure it's a Verizon device? Also since you see 3g....can you browse around in the browser or make a phone call?
Click to expand...
Click to collapse
Yes, it's a galaxy s3 16gb in white. It looks like currently I was using the tar66 using ODIN. I'm reverting back to the bone stock one now. As far as the models go isn't the SCH-I575 the Verizon version of the S3?
I'm waiting on the stock unrooted rom to take through ODIN and will report back. Thank you for taking the time to try and help.
Ohh, yes the internet works and when I make phone calls with or with out my sim in it makes calls successfully but the other guys number shows up. What the heck did this guy do to the phone!

Our model is the SCH-i535
Dont thank/like/rep my posts or ill report you.

DROID3R said:
Our model is the SCH-i535
Dont thank/like/rep my posts or ill report you.
Click to expand...
Click to collapse
You are obviously absolutley correct. I'm frantically trying to figure this out. I have flashed the stock rom and don't have super user anymore. The problem persists with the guys number.
Could he have flashed a custom kernel and modem or does reverting back using the stock rom cover all that ?

tekkski said:
You are obviously absolutley correct. I'm frantically trying to figure this out. I have flashed the stock rom and don't have super user anymore. The problem persists with the guys number.
Could he have flashed a custom kernel and modem or does reverting back using the stock rom cover all that ?
Click to expand...
Click to collapse
The one i linked covers all that and completely erases all data on the phone. Did you insert your sim after the stock flash?

toy028 said:
The one i linked covers all that and completely erases all data on the phone. Did you insert your sim after the stock flash?
Click to expand...
Click to collapse
I just double checked and I had the I535VRLAG1 version, yours is the I535VRALF2 in the link you posted trying this now. The crazy thing is that it even says that the sim is activated with MY number! but the calls are still comming from him. I even tried wiping the device and clearing the cache. I also tried to JUST flash the modem with VRLG1.modem.tar.md5 and nothing :\. Waiting on the file from your link to download and will try that.
Is it possible that this is being caused by something on Verizon's end? The phone ( with out the SIM ) is registered to him somehow? I know this is not normal but because his GF worked for Verizon could they have done something funky?

Yeah its definitely possible its from something she did to the phone but most likely nothing from Verizon's end. Does the IMEI number under status match the IMEI number under the battery?

toy028 said:
Yeah its definitely possible its from something she did to the phone but most likely nothing from Verizon's end. Does the IMEI number under status match the IMEI number under the battery?
Click to expand...
Click to collapse
Yes IMEI is the same in the OS as behind the battery.
The curious thing is that on the same screen in the OS where you find the IMEI there is also a field called Network and it says " Unknown"
It also has things like:
Eri v : 5
Mobile network type : EvDo-rev.a:8
The thing I keep coming back to is how is it possible for this phone to make calls\ have data with out a sim?
Starting to really think I got cheated

Cheated? Sounds like you have free Verizon service.
Roll with it. If you really want a bill you can have mine...
Sent from my SGH-I535 using Tapatalk 2

tekkski said:
Yes IMEI is the same in the OS as behind the battery.
The curious thing is that on the same screen in the OS where you find the IMEI there is also a field called Network and it says " Unknown"
It also has things like:
Eri v : 5
Mobile network type : EvDo-rev.a:8
The thing I keep coming back to is how is it possible for this phone to make calls\ have data with out a sim?
Starting to really think I got cheated
Click to expand...
Click to collapse
Very strange that's for sure. Try re-provisioning the device *2767*3855#

toy028 said:
Very strange that's for sure. Try re-provisioning the device *2767*3855#
Click to expand...
Click to collapse
Just did and the same thing happened. I went to the Verizon store and the guy there had no idea and got me in touch with tech support from the store. They were dumbfounded and flat out said that what is happening is impossible. "It's impossible to make\receive phone calls with out a sim unless they are emergency" I harped on the fact that I am making phone calls as one of their other customers and that this is a big deal. In the end since I had the insurance and extended warranty they will ship me a new phone.

tekkski said:
Just did and the same thing happened. I went to the Verizon store and the guy there had no idea and got me in touch with tech support from the store. They were dumbfounded and flat out said that what is happening is impossible. "It's impossible to make\receive phone calls with out a sim unless they are emergency" I harped on the fact that I am making phone calls as one of their other customers and that this is a big deal. In the end since I had the insurance and extended warranty they will ship me a new phone.
Click to expand...
Click to collapse
Wow... you gave away free service
Dont thank/like/rep my posts or ill report you.

Yeah i agree. Screw it. Just forward your number to the new one until everyone gets used to the new number. Free service equals win baby win
Sent from my SCH-I535 using xda app-developers app

Still have sim error after update who else?

Yeah just another update thread. Who here is still getting the no sim error after installing the update it is now worse for me! I am more of a reader and not a poster im just curious is there a work around for this like for example has anyone installed a rom and the problem went away?
LIttle Rant: I have had nothing but motorola smartphones Droid X, Droid Bionic, Razr Maxx so I got curious since the S3 is one of the top selling phones to check it out and let me tell you love the phone but getting that stupid error all the time is annoying I picked my s3 up thinking I could make a quick sell on my razr maxx but now im stuck switching back and forth between the S3 and the razr maxx Verizon even sent me a replacement did that help? nope now its been 3 days they have a ticket open so who knows any help would be apprectiated and lets hear your story!

I'm still getting it, even worse than before I installed the new modem (radio). It seems to be more prevalent in areas where it's switching from 4g to 3g and back. If I'm in an area that has a strong 3g or 4g signal, it never gives me that problem. Has to be a Verizon thing or something with the SG3 that can't handle the switching between the two modes, just not sure......

amaury48 said:
I'm still getting it, even worse than before I installed the new modem (radio). It seems to be more prevalent in areas where it's switching from 4g to 3g and back. If I'm in an area that has a strong 3g or 4g signal, it never gives me that problem. Has to be a Verizon thing or something with the SG3 that can't handle the switching between the two modes, just not sure......
Click to expand...
Click to collapse
UPDATE: I can confirm that if I place myself in a particular position in town where my phone will constantly switch between 3g and 4g and I attempt to send SMS messages my phone inevitably drops all data signal and gives me the no sim and no connectivity message.

I haven't been to were I used to get them bad....but I got one in an area yesterday where I generally get a strong 4G single that I had never had the no SIM issue before.
I was not happy.
galaxy. s3. synergy. yadda yadda.

I am getting it all the time at my house sometimes to the point where the phone does not work at all but if I drive down the road phone works flawless no errors even at work no errors im starting to think it might not be the phone it could be there network but for the hell of it lastnight I switched back from my razr maxx at home and the phone worked fine and when I woke up phone was fine im wondering if this only happens when the network is more at peak operation im growing very frustrated with this phone might off it and just use the razr maxx or hope for another update.

jparasita said:
I am getting it all the time at my house sometimes to the point where the phone does not work at all but if I drive down the road phone works flawless no errors even at work no errors im starting to think it might not be the phone it could be there network but for the hell of it lastnight I switched back from my razr maxx at home and the phone worked fine and when I woke up phone was fine im wondering if this only happens when the network is more at peak operation im growing very frustrated with this phone might off it and just use the razr maxx or hope for another update.
Click to expand...
Click to collapse
I had the same situation just moving from one room to another in my house. Yesterday evening I received a text from my neighbor asking if I had noticed we were receiving a 4g signal in our area (we are in a rural area about 12 miles outside of Tallahassee, FL.). Since yesterday I have a solid 4g in my home area so the no sim problem has disappeared. But there are pockets of weak coverage areas on the way to work in town and at the Florida State University where I work and I continue to find small areas where the problem persists. It has to be the SG3's inability to handle the hand-offs between 3g/4g which produce the no sim problem. My Thunderbolt would handle the switching from 3g/4g much better and not produce the no sim error. I'm sure Samsung could remedy this with a software change (at least not display the no sim) when switching service.

I still have the error on 2 phones. Funny thing is it seems that now it is worse on my wifes phone where it was the other way prior to the update.

From reading this thread and similar threads/topics regarding the sim errors with the GS3, I figured I'd post this here. This is confirmed, my friend and I both have a GS3 bought on the same day at the same VZW store. She keeps getting a sim error while I have never gotten one regardless of coverage or 3G/4G switch frequency, I frequently switch from 4G to 3G when on the subway. She went into the store and requested a new sim card, wound up arguing with the rep, according to him there's no possible way the error could be related, she finally got a new card by calling reps at various levels. After doing a factory reset and reprovisioning the internal SD card with the new sim, she has not yet had a sim error with the newest OTA. So it seems many Verizon sim cards aren't necessarily defective, but are improperly configured with the VZW network. This is just an educated guess based off personal experience, hopefully this is helpful to those with frequent sim errors.
Sent from my SCH-I535 using xda app-developers app

Shibby87 said:
From reading this thread and similar threads/topics regarding the sim errors with the GS3, I figured I'd post this here. This is confirmed, my friend and I both have a GS3 bought on the same day at the same VZW store. She keeps getting a sim error while I have never gotten one regardless of coverage or 3G/4G switch frequency, I frequently switch from 4G to 3G when on the subway. She went into the store and requested a new sim card, wound up arguing with the rep, according to him there's no possible way the error could be related, she finally got a new card by calling reps at various levels. After doing a factory reset and reprovisioning the internal SD card with the new sim, she has not yet had a sim error with the newest OTA. So it seems many Verizon sim cards aren't necessarily defective, but are improperly configured with the VZW network. This is just an educated guess based off personal experience, hopefully this is helpful to those with frequent sim errors.
Sent from my SCH-I535 using xda app-developers app
Click to expand...
Click to collapse
How do you reprovision the internal SD card with the sim? If you are correct, some people may be able to fix the problem by doing so with their existing sim cards.

eagene said:
How do you reprovision the internal SD card with the sim? If you are correct, some people may be able to fix the problem by doing so with their existing sim cards.
Click to expand...
Click to collapse
I would also LOVE to know how to do this!!! Very frustrated with this!! Hopefully reprovisioning the sim finally works!!

After searching around, I found to reprovision, you need to go to stock and dial this in the dialar, *2767*3855#. My question is,
- Is it def not possible to do this from an AOSP rom?
- When they say "go to stock", can I just flash a TW based rom and do it?

reprovisioning does not work, don't waste your time

ripken204 said:
reprovisioning does not work, don't waste your time
Click to expand...
Click to collapse
Agreed, I have reprovisioned before, to no avail. I thought it might be my SMS client, GO SMS, but I am getting the same NO SIM error with that client that I get with Handcent as well as the stock messaging client.
I called Verizon back today, to note my account that it's still happening, and spoke to them about a replacement phone. (I am already on my second S3 and second SIM) They offered me my choice of Android device, which currently is a bad deal. So I asked them if their deal would hold true once the Note 2 came out, and the nice lady at level 2 support said yes.
So unless this gets fixed prior to the Note 2... a switch is almost inevitable for me.

Dont waste your time doing the reprovision does not work I tried it earlier today.

mdt73 said:
Agreed, I have reprovisioned before, to no avail. I thought it might be my SMS client, GO SMS, but I am getting the same NO SIM error with that client that I get with Handcent as well as the stock messaging client.
I called Verizon back today, to note my account that it's still happening, and spoke to them about a replacement phone. (I am already on my second S3 and second SIM) They offered me my choice of Android device, which currently is a bad deal. So I asked them if their deal would hold true once the Note 2 came out, and the nice lady at level 2 support said yes.
So unless this gets fixed prior to the Note 2... a switch is almost inevitable for me.
Click to expand...
Click to collapse
Interesting...I might be doing the same thing. This issue is beyond frustrating. However, I have not called Verizon about it yet. Mainly because there doesnt seem to be a fix. I dont want a refurb S3 and there currently isnt a valid replacement. Might try the Note 2 if its possible.

dmbfan13 said:
Interesting...I might be doing the same thing. This issue is beyond frustrating. However, I have not called Verizon about it yet. Mainly because there doesnt seem to be a fix. I dont want a refurb S3 and there currently isnt a valid replacement. Might try the Note 2 if its possible.
Click to expand...
Click to collapse
call verizon just so that they can put a note in your account.
vzw put a note on my account and I should be able to just call up and replace my S3 with something new... just have to wait for something good to come out

ripken204 said:
call verizon just so that they can put a note in your account.
vzw put a note on my account and I should be able to just call up and replace my S3 with something new... just have to wait for something good to come out
Click to expand...
Click to collapse
100% agree with Ripken... call them and have them note it in your account. Basically, I am documenting it once per day (it happens more, but calling more than once per day seems redundant) so they see it, but more importantly, I have some ammunition if I finally move to a new phone. Today's call to 2nd level tech support was a bit frustrating to me, as the nice lady said that, in fact, verizon did get a bad batch of SIM cards. When I pointed out that the bad batch must have been sent all over the country, because it's not a localized issue, and there was a software update addressing it... she didn't have a response. We went thru the same rigamarole with the phone... ie pull the battery, read the number on my SIM, read the numbers from my software build, etc. Again, she offered me any Android phone in exchange, which I turned down. But, at the end, she mentioned she was sending this issue up to a different tier of support that (her words) works with Samsung to fix these issues. I kindly asked her to have them address the headphone jack - bluetooth non-coexisistance, which she giggled at but assured me was working as intended.
So, back to waiting for a fix... or an inevitable new phone.

VRLHD Modem
Ok guys try this at your own risk! I might have found a fix looks like there is another modem floatng around called VRALHD I just flashed it in odin and guess what my phone seems to be working good here at home so try this at your own risk!
Download Link:
http://goo.im/devs/invisiblek/i535/modems
also if you google VRALHD modem galaxy s3 something will come up I cant confirm for sure this will help I will report back after some usage between now and tommorow.
Here it is on rootzwiki
http://rootzwiki.com/topic/34053-of...zon-sgs3-sch-i535-odin-or-recovery-flashable/

Guess I had high hopes for that modem does not fix the issues nevermind lol I am hoping when the jellybean update hits with a new modem this will fix the problem the waiting game begins.

Installed the HD modem last night. I have one area at work that I can test it. I'll report back later with my results.
Update: Flashed the HD radio last night (in CWM touch recovery), install went fine. Didn't have an opportunity to check it out till this afternoon when I put myself in a exact known location where I could reproduce the 3g/4g constant hand-off with the "no sim" notification. Sent out 6 text messages and a couple of phone calls with no problem. Either this new radio did the trick for me or it may be coincidental that Verizon has corrected this "dead" area that would produce this problem without fail everyday I was at work. Couldn't tell you for certain. All I know is that it's not happening anymore at this particular location. I used to have the "no sim" "out of area" notifications constantly at my home until just last week when Verizon finally covered this area with a strong 4g service. Only time will tell as I travel thru areas that have weak coverage. It's very obvious that this problem stems from weak coverage areas and the SG3's inability to handle the transfers effectively.