Database Info

Radio Reboot Cause and What to DO!

OK Guys and Gals, Here is what is going on with the radio issue. No Matter WHAT radio combos you may be using. As some of you may know by my earlier posts I live in a huge 4G network and never get anything, but 4G and (3G only for a min on boot) This is why I didn't have ANY issue's until I got curious and wanted to try something. On our tbolts, if you try to make a call while in 3G the 3G will drop out until the call is over. I went back to froyo, got pissed and went strait back to GB (doesn't matter what Rom as all the dev have clearly stated) when I did go back to GB things were tight as usual. worked like a charm. I used it as I normally would and everything was fine. upon a self induced restart, before my phone had a chance to obtain 4G (still in 3G) I decided to make a test call to see if the 3G would drop. It didn't. Quickly after I ended the call the phone booted in to bootloader. Thank God I had removed the GB RUU because I don't have a card reader to remove the RUU. I forgot to mention I do have the latest Rom Mgr and was able to get into recovery and simply reboot. After that reboot I would get to my home screen, but this time the 3G only would come up and then reboot. Time after time of rebooting I tried other things such as toggle radio to just grab 4G, then the phone rebooted again! upon the next full boot I quickly moved the original froyo radio strait to the sd card. And yet another reboot. This time I got a Rom Mgr error and noticed that Rom mgr was no longer flashed!!! I flashed it real quick because I knew another reboot was on its way. Rom mgr flashed and I told it to boot in to recovery. Thank **** I flashed Rom manager because if not I would be in continuous boots like the unfortunate others. Once in recovery I Realized that I had told my phone to go in to recovery via Rom mgr. and if I did a restore, the phone would have booted back up with my froyo rom but with the GB radio! so I told CWR to just reboot so I could tell the phone to go into recovery via the pwr restart option (thus not restarting after I flashed my froyo recovery) Once recovery of my froyo rom was complete I used ADB to reboot bootloader and SUCCESS! Bottom line you can not make a call while on 3G with any of the current GB radios, you gotta be quick, Make sure ROM mgr is actually flashed!!!! and hopefully can dump the froyo radio on to your SD card before an inevitable reboot happens! and have some ADB knowledge. I'm certain this is whats going on! People make a call while in 3G and its all down hill from there. So dont bother with telling radio settings to stick with one band. Once this happens, there is no turning back. Any questions PM me. I'm glad I tried this out before Vaca tomorrow with a FUBAR Tbolt
Hope this helps developers somehow. Good luck!

I make calls all day on 3g

Only 3g here in new Mexico and no.issues here. Maybe its more to do with making a call while the phone is trying to.connect to the 4g.
Sent from my ADR6400L using XDA App

thetwiztidfreak said:
Only 3g here in new Mexico and no.issues here. Maybe its more to do with making a call while the phone is trying to.connect to the 4g.
Sent from my ADR6400L using XDA App
Click to expand...
Click to collapse
Good point, but sometimes you never know when that may happen. Ie. Your driving in a 3g area while on a call, hang up and it doesn't get the 4g in the new area ur at and what I mentioned is most likely going to happen. *shrugs*
Sent from my ADR6400L using XDA Premium App

Dubin04 said:
I make calls all day on 3g
Click to expand...
Click to collapse
Maybe, but that one time when u make a 3g call n hang up, if your in a 4g area then, this could happen n Tom manager may drop its cwr flash n **** ya up. Just a heads up. Make a 3g call, but if ur going in a 4g area make damn sure u check rom Mgr to see if cwr is still flashed.
Sent from my ADR6400L using XDA Premium App

In Hawaii I also do not have 4G unfortunately and have been using 3G with a GB ROM.
Sent from my ADR6400L using Tapatalk

This guy was just web browsing.
DroidTh3ory said:
Just happened... 10 minutes ago. I am looking for another Dump truck so I pulled up Craigslist, hit the search box and as I was typing it just started to lag like a MFKR... Then, Reboot. It hit the White HTC screen and just kept rebooting. I pulled the battery and booting into hboot, 3 seconds later... Reboot.
My not be relevant but it happened to be in a 3G area this morning on a job.
There's a Verizon store on my way home. Ill be setting another one up tonight.
Click to expand...
Click to collapse

MrHawaii said:
In Hawaii I also do not have 4G unfortunately and have been using 3G with a GB ROM.
Sent from my ADR6400L using Tapatalk
Click to expand...
Click to collapse
There's your answer. Hope 4G DOESN'T POP UP SOON OR IT MAY BE AN AWESOME THING GONE WRONG!
Sent from my ADR6400L using XDA Premium App

thetwiztidfreak said:
Only 3g here in new Mexico and no.issues here. Maybe its more to do with making a call while the phone is trying to.connect to the 4g.
Sent from my ADR6400L using XDA App
Click to expand...
Click to collapse
Plus your only in 3g. The phone will only grab the dominant signal. So ur good till 4g comes in to ur area. Hope there's a better radio to fix this by then!
Sent from my ADR6400L using XDA Premium App

When you say radio combos are you referring to froyo radios also? Cause gb only has one radio.
Sent from my ADR6400L using XDA App

So... if you have 4G disabled on the GB ROMs you shouldn't encounter the endless bootloop..?

mkilla said:
When you say radio combos are you referring to froyo radios also? Cause gb only has one radio.
Sent from my ADR6400L using XDA App
Click to expand...
Click to collapse
The GB radios out there are combos. They Support cdma,evdo and lte.
Sent from my ADR6400L using XDA Premium App

swimminsurfer256 said:
So... if you have 4G disabled on the GB ROMs you shouldn't encounter the endless bootloop..?
Click to expand...
Click to collapse
Possibly, but hope u maintain 3G because if you happen to go to 1x (CDMA) It may be the start of awfulness! Maybe just force evdo? Good luck
Sent from my ADR6400L using XDA Premium App

Well I'm not running a gb ROM right now but I was, and when I was, I am in and out of 4g/3g areas all day long, it didn't happen to my phone.
Sent from my ADR6400L using XDA App

Dope - make sure you post in the http://forum.xda-developers.com/showthread.php?t=1098363 thread, telling us what your EMMC identifies itself as.
So far, nobody who has bricked their device has stepped forward and given us the magic numbers, so we cannot determine whether specific hardware plays a role in bricking.

mkilla said:
Well I'm not running a gb ROM right now but I was, and when I was, I am in and out of 4g/3g areas all day long, it didn't happen to my phone.
Sent from my ADR6400L using XDA App
Click to expand...
Click to collapse
Have to be running a gb rom with a gb radio. Make a call while in a 3g/4g area. only make a call when in evdo n see what happens after u hang up. Jk
Unless you got another tbolt laying around if u aren't as fortunate as I was with this BS

CorporateGoth said:
Dope - make sure you post in the http://forum.xda-developers.com/showthread.php?t=1098363 thread, telling us what your EMMC identifies itself as.
So far, nobody who has bricked their device has stepped forward and given us the magic numbers, so we cannot determine whether specific hardware plays a role in bricking.
Click to expand...
Click to collapse
Leaving for Florida in a few hours n everything is packed up. Ill report once I'm there if not too busy. Thanks for the link!

I ran a GB rom and radio for over a week set to only 3G and I am in a STRONG 4G area. Made many calls and had no issue.
*edit: Correct me if I'm wrong but your data (3G) drops when in a call, when set to 3G only, due to the fact that you can't have simultaneous data and voice. That is what 4G (LTE) is providing. I open and close the browser a couple of times or toggle airplane mode and it comes back.

rsmiff said:
I ran a GB rom and radio for over a week set to only 3G and I am in a STRONG 4G area. Made many calls and had no issue.
*edit: Correct me if I'm wrong but your data (3G) drops when in a call, when set to 3G only, due to the fact that you can't have simultaneous data and voice. That is what 4G (LTE) is providing. I open and close the browser a couple of times or toggle airplane mode and it comes back.
Click to expand...
Click to collapse
Not my understanding...
I've put mine in 3G only and was still able to use voice and data.
Voice uses 1x...
Not until Voice over LTE will that be accurate...LTE is data only at this point.
Turn off data and you can still make a call, send and receive SMS/MMS.

dajogejr said:
Not my understanding...
I've put mine in 3G only and was still able to use voice and data.
Voice uses 1x...
Not until Voice over LTE will that be accurate...LTE is data only at this point.
Turn off data and you can still make a call, send and receive SMS/MMS.
Click to expand...
Click to collapse
I mean simultaneously use voice and data. You can't currently do that. That is what LTE is going to provide.
dopediculous...Have you done this?
http://forum.xda-developers.com/showthread.php?t=1098363

Stuck in roaming

I have a problem where my Charge thinks I am always roaming. One other person in posted in this forum with this problem but had no responses and he is a one post wonder. Has anyone else seen this problem. I have sent this device to Samsung twice and it has not been fixed. They will not replace it. Verizon did some stuff overt the phone that was of no help. This does not happen if I put my sim in a Thunderbolt and it does happen if I put another Sim into this device. It has to be the device. Any ideas?

i think that I ran into this problem just the other day have you figured out how to fix it.
I thought that the sim was supposed to automatically update roaming.
I have tried flashing Roms over top using odin cwm and nothing has helped, i don't know what else to do.

What are you running on it (roms, radios, etc) and what have YOU done to try fixing it?
Sent from my GT-P1000 using XDA App

kvswim said:
What are you running on it (roms, radios, etc) and what have YOU done to try fixing it?
Sent from my GT-P1000 using XDA App
Click to expand...
Click to collapse
I was on Gummy charge fe 1.9.1 and a few days ago it put me into roaming mode. all the areas where i would have perfect 4g or 3g reception say i am roaming. I tried reflashing the gummy rom in odin and in cwm then i tried getting the new leak to see if the newest modems would fix it. Niether of those worked so i tried flashing the EE4 stock rom and that didn't work either. I didn't want to keep flashing after that because i didn't want to end up ruining my phone any mor. I flashed each of them a few times to make sure it wasn't just an error.
I wiped all data did factory restore wiped cache dalvik and even battery(i know that didn't really do anything useful but thought i would try it).
I didn't know what else to do so i figured i would leave it on stock unrooted and see if anyone could help me here before i called up verizon.
I also tried taking the battery out and sim for about half an hour to see if that would do anything but it didn't help either.

Is "data network mode" on your power menu activated? May seem like a stupid question....Also, can you make calls?
Sent from my Droid Charge running GummyFroyo 1.9.1

kvswim said:
Is "data network mode" on your power menu activated? May seem like a stupid question....Also, can you make calls?
Sent from my Droid Charge running GummyFroyo 1.9.1
Click to expand...
Click to collapse
Yes i can make and recieve calls also i can send and recieve text messages. I did find out that when i go into a 4g area that it will connect so i was wrong about that part. Earlier i just assumed the 4g would act the same I just wasn't in a 4g area for a couple days because I had off of work. But as soon as I leave the 4g area it says that I am roaming.
This info may help solve the problem and sorry about saying the 4g didn't work. you know what they say when you assume you just make an ass out of u and me.
I am thinking that it is just the 3g antenna going bad or something because I saw that was happening to some people but I am not sure if it is the same predicament.
Thank you for the help so far though.
Oh yeah and also the mobile network is on If that was the problem I would probably be really upset with myself that i didn't notice. Although I have seen it happen when i went to verizon to get a new sim card after something happened to mine I ended up waiting there for half an hour for them to get my phone working only to find out the reason they couldn't get the new sim working right was because they had the mobile data turned off.

Multiple Roms, stock and custom, gingerbread and froyo. kernels radios, you name it. No problem with voice. Shows data roaming all the time and will not get data unless I enable data roaming in the settings. If I pull my sim out and put it in my Thunderbolt there are no problems. I also tried a different sim and the problem was still there. I have already sent it to Samsung for this as well as talked to Verizon.

[Q] I cannot use my 4G network?

Hello,
I have recently downloaded GummyCharged GBE 2.1 and the theme ICS onto my Droid Charge. The problem is, I have noticed that I cannot use my 4G network, even after I continually tap on it.
I have come up with some probable answers that I still need help with, but I think I downloaded ED1 and not EE4?
Is that correct?
I can use my Wi-Fi no problem, just the 4G network I can't use. So if I want to use my 4G again, I have to root my phone again?

VexedVortex said:
Hello,
I have recently downloaded GummyCharged GBE 2.1 and the theme ICS onto my Droid Charge. The problem is, I have noticed that I cannot use my 4G network, even after I continually tap on it.
I have come up with some probable answers that I still need help with, but I think I downloaded ED1 and not EE4?
Is that correct?
I can use my Wi-Fi no problem, just the 4G network I can't use. So if I want to use my 4G again, I have to root my phone again?
Click to expand...
Click to collapse
You have a 4g device shouldn't matter ED1,ED2,EE4. You getting no 3g/4g at all?
When you go to setting/wireless networks/mobile networks is packet data checked?

Yes, packet data is checked and I cannot see the symbol for 4G on the status bar. I have no idea why it's doing this.

VexedVortex said:
Yes, packet data is checked and I cannot see the symbol for 4G on the status bar. I have no idea why it's doing this.
Click to expand...
Click to collapse
If you are using wifi your 3g/4g wont show up. Make sure it is unchecked. Also you can use wifi but if in airplane mode your 3g/4g wont show up. I know most of this is simple but trying anything.

Hi,
Airplane mode was never checked. I also don't leave Wi-Fi on when trying to use 4G, so I guess that's not the problem.

VexedVortex said:
Hi,
Airplane mode was never checked. I also don't leave Wi-Fi on when trying to use 4G, so I guess that's not the problem.
Click to expand...
Click to collapse
Ok I give up here too. I would install a different Rom.

Data outage that happened to me when data was out same Tom too
Sent from my SCH-I510 using xda premium

Well I'm probably sure that I still have more data left, but is that what happens if you run out of data?

VexedVortex said:
Well I'm probably sure that I still have more data left, but is that what happens if you run out of data?
Click to expand...
Click to collapse
No he is saying Verizon network may be down in the area. Over the past well just say the past they have had outages with no coverage. Could call Verizon and see if they tell you the truth or reflash.

Agreed Athens I should be more clear in the future lmao
Sent from my SCH-I510 using xda premium

My area has 4G coverage, I think I need to reflash.

Try flashing again doesn't work then my guess would be similar is fried or data is really down happened to me too cs said it was fine went to a physical store and all if there phone were down so yeah best of luck to ya
Sent from my SCH-I510 using xda premium

Don't remember the whole thread but have you tried a different sim card? Doesnt that control 3g/4g and if the card is fried you won't get signal? Just an idea that might be easier than flashing something else.

True but sometimes the store reps know better than call center about data outages
Sent from my SCH-I510 using xda premium

bfitzpatrickd2d said:
True but sometimes the store reps know better than call center about data outages
Sent from my SCH-I510 using xda premium
Click to expand...
Click to collapse
Damn, I guess I'll reflash. Do you think it's because of the GummyCharged GBE ROM? Because I was in a rush flashing it but I remember I didn't root my phone first and I didn't flash Voodoo. Before I reflash, no one knows how to fix this problem?

when i flashed gbe 2.1 i flashed the odin version first like 1.7 or something then voddoo was enabled then i booted into recovery flashed 2.0 voodoo already enabled then i flashed 2.1 ontop of it because it is a addon package not a full rom and i was good to go on i side note just back up flash something like humble just to see if your data works if it doesn't work on humble then you know verizon doesn't know **** and data is down or your sim is fried but i would think you wouln't be able to make phone calls if that was the case or make sure you have the most recent radio sometimes that might work sorry if i couldn't help more let me know if you need more help or questions... good luck man

I fixed the issue,
I just went into recovery mode and wiped my data, cache and Davlik cache. Then I installed ICS again from my SD card and the 4G started to work once again.

Sweet
Sent from my SCH-I510 using xda premium

Verizon GS3 stuck on 3g

Second day owning this device and love it so far, but day two has been rough. I am stuck on 3g. All of a sudden today my lte switched and will not go back. Iv'e rebooted, toggled airplane mode and data. Even pulled the sim. I live in a strong 4g area so that is not the problem. My buddy has a nexus and his is fine. I also have had great reception in areas I have always had problems, so not a reception issue. I called verizon and was told it is a know issue that is normally solved with a reboot. She said an update was scheduled for early September to fix the issue. The point of this thread is to find out if anyone else has had this problem, or found a solution.
Edit: After countless toggling I got it back to 4g, but it won't connect to the network. So my thought is that the sim card is trashed. Going to get a new sim card first thing in the morning.
Sent from my SCH-I535 using xda app-developers app

I don't have the exact problem i did notice mine switches from lte to 3g all the time and it stays 3g until i change it back and reboot.
Sent from my SCH-I535 using xda app-developers app

ajd88 said:
Second day owning this device and love it so far, but day two has been rough. I am stuck on 3g. All of a sudden today my lte switched and will not go back. Iv'e rebooted, toggled airplane mode and data. Even pulled the sim. I live in a strong 4g area so that is not the problem. My buddy has a nexus and his is fine. I also have had great reception in areas I have always had problems, so not a reception issue. I called verizon and was told it is a know issue that is normally solved with a reboot. She said an update was scheduled for early September to fix the issue. The point of this thread is to find out if anyone else has had this problem, or found a solution.
Edit: After countless toggling I got it back to 4g, but it won't connect to the network. So my thought is that the sim card is trashed. Going to get a new sim card first thing in the morning.
Sent from my SCH-I535 using xda app-developers app
Click to expand...
Click to collapse
Unfortunately I am also finding myself stuck in 3g. I have pulled the battery, installed a new ROM. Still working on it, not thrilled. Prior to 4g disappearing, it showed 4g, however I was unable to connect over it. I hope this isn't a hardware issue.
---------- Post added at 08:12 PM ---------- Previous post was at 08:02 PM ----------
ajd88 said:
Edit: After countless toggling I got it back to 4g, but it won't connect to the network. So my thought is that the sim card is trashed. Going to get a new sim card first thing in the morning.
Sent from my SCH-I535 using xda app-developers app
Click to expand...
Click to collapse
Did this work?

Just FYI, I have the SCH-i535 and am noticing similar behavior. I had a Samsung Droid Charge before the SGS3, and it stayed locked to 4G LTE in the same exact areas of my home. If my Charge did happen to drop 4G, it would always come back. But not with my SCH-i535. Once 4G drops it stays on 3G until I reboot the phone. So far, this is my only complaint about this phone.

It is very random for me. Im certain its a **** sim card. Right now its fine, but at any time it may get stuck on 3g. Also while at work the first couple of days it would hold a decent 3g signal, now its primarily on 1x. Once i replace the sim card I am hopeful for it to be fine.
Sent from my SCH-I535 using xda app-developers app

ajd88 said:
It is very random for me. Im certain its a **** sim card. Right now its fine, but at any time it may get stuck on 3g. Also while at work the first couple of days it would hold a decent 3g signal, now its primarily on 1x. Once i replace the sim card I am hopeful for it to be fine.
Sent from my SCH-I535 using xda app-developers app
Click to expand...
Click to collapse
I thought Verizon said that this was a known issue? I'm just curious as to why you would disagree. But if a new SIM does happen to fix the problem, please let us know.

Just a heads up! I have the same issue, but I can't get 4g back at all, which I thought stemmed from flashing CM9, but this thread is making me wonder now! I spent an hour on the phone with Verizon technical support and they said you will get a popup if the sim is the issue. They told me its the phone and they are sending me a new one. FYI you can try this code. *2767*3855# in the dialer to factory reset the phone ( can do the same in recovery ofcourse), but you HAVE to be running STOCK UNROOTED! Some people have had luck with this "resetting" the radio I guess. If this doesnt work, might as well call them and get a new phone coming. TRUST ME, I believe I did everything I could think of before calling them, except taking the phone apart and pulling a new radio out of my ass!! Lol

I'd just return the phone and get a new one if possible.

They did tell me it was known issue. Its just weird how random it is. I am hopeful it is either the sim card of a software issue. I hope it is not a hardware issue. I would rather not have my phone replaced as I just put a new screen protector on. Also to those getting a replacement, is it brand new or a certified like new device?
Sent from my SCH-I535 using xda app-developers app

ajd88 said:
They did tell me it was known issue. Its just weird how random it is. I am hopeful it is either the sim card of a software issue. I hope it is not a hardware issue. I would rather not have my phone replaced as I just put a new screen protector on. Also to those getting a replacement, is it brand new or a certified like new device?
Sent from my SCH-I535 using xda app-developers app
Click to expand...
Click to collapse
I did read in another forum that the replacement phones are coming out with a baseband update. I'm guessing that we will probably need to exchange our phones...or be patient for the OTA. Hopefully it won't be too much longer. Incidentally, I just did a factory reset and 4G now appears to be working. Time will tell...

mds96 said:
Just a heads up! I have the same issue, but I can't get 4g back at all, which I thought stemmed from flashing CM9, but this thread is making me wonder now! I spent an hour on the phone with Verizon technical support and they said you will get a popup if the sim is the issue. They told me its the phone and they are sending me a new one. FYI you can try this code. *2767*3855# in the dialer to factory reset the phone ( can do the same in recovery ofcourse), but you HAVE to be running STOCK UNROOTED! Some people have had luck with this "resetting" the radio I guess. If this doesnt work, might as well call them and get a new phone coming. TRUST ME, I believe I did everything I could think of before calling them, except taking the phone apart and pulling a new radio out of my ass!! Lol
Click to expand...
Click to collapse
I also flashed CM9, and I am fairly certain this was the cause of my problems. Nothing I did would make 4G work again.
Other 4G VZW devices seemed to work fine at the same time(I have an ipad3 for work, POS).
I didn't mess with it for a couple of hours while running errands, then all of the sudden it was working again. Been fine ever since as far as I can tell. It would be nice to know what exactly is causing this, but for now I'd caution against messing with cm9 .

T-Mobile: No Service

Something happened to my phone last night where it now won't connect to any registered network. Simply says "searching".
I've tried a handful of new roms following all the guides to the tee. U M M U for my mounts. Wipe everything, cache / data / dalvik. The phone itself works fine it just cant connect to a network. I'm not sure if the phone itself just broke or what.
I've also tried some different modem kernels etc but nothing is helping.
Is my phone physically broken or is there a way to get it to work. I've also tried stock rom and what not and I can't fix it.
Someone help me please!

Did you pay the bill check the imei number make sure its not all 0s
Sent from my SGH-T959V using xda premium

ericmpanda said:
Did you pay the bill check the imei number make sure its not all 0s
Sent from my SGH-T959V using xda premium
Click to expand...
Click to collapse
Lol if you don't pay the bill it still says T-Mobile with bars
---------- Post added at 01:07 PM ---------- Previous post was at 01:06 PM ----------
DJKlitz said:
Something happened to my phone last night where it now won't connect to any registered network. Simply says "searching".
I've tried a handful of new roms following all the guides to the tee. U M M U for my mounts. Wipe everything, cache / data / dalvik. The phone itself works fine it just cant connect to a network. I'm not sure if the phone itself just broke or what.
I've also tried some different modem kernels etc but nothing is helping.
Is my phone physically broken or is there a way to get it to work. I've also tried stock rom and what not and I can't fix it.
Someone help me please!
Click to expand...
Click to collapse
If you can, call T-Mobile and make sure there are no network outages in your area

Is the phone showing any networks when you go to network operators? Even if TMOB has an outage you should see other carriers there. If your not seeing any then your modem might have crapped out.

ericmpanda said:
Did you pay the bill check the imei number make sure its not all 0s
Sent from my SGH-T959V using xda premium
Click to expand...
Click to collapse
How do I check the imei? I'm semi-noob. I just know the basics.
hechoen said:
Is the phone showing any networks when you go to network operators? Even if TMOB has an outage you should see other carriers there. If your not seeing any then your modem might have crapped out.
Click to expand...
Click to collapse
Theres nothing coming up. Just saying "Searching" This happened about 40 miles away, drove home, still nothing. I don't think its a TMO problem. Also, my roommate has TMO and his phone works fine.

DJKlitz said:
How do I check the imei? I'm semi-noob. I just know the basics.
Theres nothing coming up. Just saying "Searching" This happened about 40 miles away, drove home, still nothing. I don't think its a TMO problem. Also, my roommate has TMO and his phone works fine.
Click to expand...
Click to collapse
Imei is in your settings in about phone.

th3controller said:
Imei is in your settings in about phone.
Click to expand...
Click to collapse
says unknown

DJKlitz said:
says unknown
Click to expand...
Click to collapse
If you flashed back to stock and it still says that your modem went belly up. When did you get the phone?

Flashing the modem should fix your issue. Also, stock kj6 even with different modems is pretty unstable. My dad is on stock but his phone signal and 4g often craps out while me on cm9 is more stable.
Sent from my SGH-T959V using xda premium

Just contact the customer service office from other phone and tell them about this problem. only they can solve your problem and they will give you exact solution for this problem.

This happened to me a few days ago. Phone would drop signal like crazy. I flashed modem after modem nothing. Reverted to stock GB but nothing. After two days of one bar or no reception it came backmagically. Just giving an FYI cuz for me it had to be Tmo doing something.
Sent from my SGH-T959V using xda premium

This also happened to my phone last Thursday! Was your phone unlocked? Mine was reverted to a simlock state and had to b re-unlocked, wierd as it is apparently it does happen with these phones,though the tech I spoke to thinks the providers have something to do with it
sent from my t959w running RemICS-UX, Voodoo sound, Rom Toolbox pro