[Q] Mobile data is not working..please help - Verizon Samsung Galaxy S III

I was running a Jellybam rom on 4.2 about a month ago and I decided I would upgrade to a 4.3 rom. Up until then my data was working normal and I could get 3g just about all around town. So after searching I settled for the ;latest PAC-man rom on 4.3 and loved the features it came with. Theres only one issue though...Now when i turn my data on and wifi off to access 3g or 4g I am extremely lucky if I even get a 1x signal. I am talking once in a blue moon this will happen. I know my data is working thought because when I download or send a MMS, I will instantly get 3g or 4g but as soon as it is finished, all data is lost again. I have tried going back to Jellybam and reinstalled PAC but nothing helps fix it. This is really becoming annoying now because I cannot use gps or pandora in my car anymore. Please help!

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Constant data drops

So I am currently running bamf 1.6.3 and I change kernals a lot, but one thing I can't seem to fix are the data drops. I live in raleigh, so no LTE, and am running the .7 cdma / .6 LTE radio combo. The data drops off a lot, more noticeable when changing towers. Even sitting at home with good signal it will just drop to 1x and is hard to get 3g back without a reboot. Anybody else see this? No reboot problems
So am I the only one with this issue??
Mine drops 3g and 4g for a second or two and then comes back. It has been happening a lot recently.
At one point in time I would have that happen, it was because of a local tower being screwed up. Maybe switch from eHRPD to the standard 3g network? or vice versa?
Had the same issue with 1.6.3 and went back to 1.6.1 and Im fine again. Ill wait for another version before updating again
Having this same problem but I'm on stock and it only happens while I'm on 3G....nothing but problem since I got this phone....did Verizon and HTC test this phone out? Gps problems,reboot problems,data problems,battery...I'm really sorry I left my carrier for this phone.
mbrown3460 said:
Having this same problem but I'm on stock and it only happens while I'm on 3G....nothing but problem since I got this phone....did Verizon and HTC test this phone out? Gps problems,reboot problems,data problems,battery...I'm really sorry I left my carrier for this phone.
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the NEW 4g network is going to take some time to get running properly and because of that will have issues as will the phones. Not everything works flawlessly off the bat, give time to get everything settled and figured out and it will get perfected.
With all the radio/prl updates they have been doing I wouldnt be suprised if it is caused from that.
I was having the same problem. Disabling eHRPD has seemed to fix it. I still see strange signal drops, but I'm not seeing data drops at all.
It's not a fix, but rather than rebooting, just turn on airplane mode, wait for the airplane icon to appear, and then disable airplane mode. I have the same issue you describe, so I just keep the airplane mode toggle widget on my second home screen panel.
I'm getting very frustrated with the inconsistent data connection on this phone. I halfway considered trying to get VZW to let me swap it for the Droid X 2 when it releases next week.
I have similar problem. I live in Northern CA with 4G coverage. The problem will be like this:
- 4G works OK, data works
- Moments later, 4G icon shown upload activity (arrow up sign)
- Shortly afterwards, no data. Mail, Google Maps, etc. failed
Fix is to turn Airplane mode OR REBOOT the phone. I have tried switching radio mode (using LTE ON/OFF) but to no avail.
I understand 4G is new and so is the phone, but c'mon.. it has been sometime now and we are STILL paying for the service, even when the 4G network is down (few weeks ago) or when the phone loses data.
This happens to me on stock. Will be using 4G and then all data drops, then comes back, then drops, then comes back and repeats the cycle. Rebooting, airplane mode, nothing helps. Eventually it goes back to normal.
My phone went wacky yesterday. 1x and no data for four hours. Spent an hour on the phone with Verizon tech. We did everything possible and nothing. Then it just fixed itself. Had someone with a Droid X in the same room as me with great EV signal. Now the phone is perfect again. I dont get it . I have enabled REV A and now I put it back and that didnt matter.
zx12dak said:
My phone went wacky yesterday. 1x and no data for four hours. Spent an hour on the phone with Verizon tech. We did everything possible and nothing. Then it just fixed itself. Had someone with a Droid X in the same room as me with great EV signal. Now the phone is perfect again. I dont get it . I have enabled REV A and now I put it back and that didnt matter.
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Mine as well on 1.6.3 bamf remix. i had to keep going in airplane mode. it was stuck on no service or even the 4g icon (not blinking and no service)
We are Guenna pigs....
Since i have gone to the new leaked gingerbread radio not the latest froyo radio but the new gingerbread i dont have data drops
get it here http://www.multiupload.com/KQCRTNALV9
I too had continual problems with data yesterday (on BAMF 1.6.3) in San Diego. Kept switching from 4G/3G/1x. Today seems to be running smooth.
I'm gonna say thank god I'm not the only one, I don't live in a 4g area, yet there's many times my 3g will do the same arrow thing showing up and than everything fails. I'm running the new radio and perfect storm 1.4
, and drods kernel
Sent from my ADR6400L using XDA Premium App

Constant Arrow up (upload) on 4G w/ no data connection

So sometimes my 4G goes crazy and has the constant upload arrow lit up and stay like that w/ no data connection.. as if it is trying to communicate with the network but not get any response back. cant figure out how to fix it other than put my phone in CDMA mode and try switching back to LTE later on in the day. anyone else have this issue and no what the deal is?
using Das BAMF 1.6.3 Remix with .6 LTE and .7 CDMA radios. also this issue occurred when i was fully stock.
I struggled with that issue most of the day yesterday (stuck up arrow, sometimes alternating to 3G/1x), but so far today, I've been on functional 4G without a hitch. I'm running BAMF 1.6.3. I'd like to think it's network related, but can't be sure. . .
I get the stuck send arrow 1-2 times per week. I restart the phone and it's fine. Since the update the only issues I have had seem to happen when verizon is working on the network.
I've only had it twice, and both times it persisted for several hours, regardless of reboots and reflashing my ROM. I think it's network-related and ya just have to wait it out.
I was getting that before from time to time but since loading up the Ginger radio and chingy's gingeritis rom the switching from 3g to lte is fantastic and no upload lte hangs like you mentioned.
I had this exact same issue yesterday!!! I'm pretty sure it was a network issue...
Got the same issue yesterday. Running stock ROM + the OTA update.
Having problems with data again today. Reboots, toggling airplane mode not working so far. . .
Sent from my ADR6400L using Tapatalk

[Q] Loss of 3G and Data Completely

Hey all! So...after struggling with this problem for a couple weeks, I've finally decided to get some help. I have an HTC Thunderbolt, currently running MIUI-Vicious-ICS-4.0, with 2.6.35.14-imoseyon-5.1.0AOSP+ Kernel. Also, the baseband is 1.48.00.0906w_1,0.01.78.0906w_2.
The problem is that I don't get 3G at all, and often I loose data completely. Very rarely do I have even 3 bars of 1x. WiFi still functions though. I've had this problem on many ROMs (CM7, MIUI, DasBAMF) so I know it isn't the ROM. I'm paying for data every month so it sucks not being able to use it
If you need any more details, feel free to ask. ANY help on this would be VERY appreciated!
Thanks!

Data only working for mms?

I've been having a lot of trouble lately getting my data to work. I turn it on and can send pictures and receive them, I get 4g and everything is fine. But when I turn data on and try to surf the Web or check reddit or try and use Pandora on my phone I cannot get data to work. I'm running v23 PAC and I've tried installing the latest radio but the best I ever get for data for regular use is 1x. I know I'm in a 3g/4g because I know of 3 people with Verizon gs3s and if we all stand side by side everyone is getting 3g or 4g and I cannot even get 1x. Any ideas?
Sent from my SCH-I535 using xda premium
I had the opposite problems I couldn't send mms but everything else work fine data make calls jst could not send mms i was on pac man niteless i did wipe cache dalvik still no go reflash gaaps and no reflash rom n gaaps.. U can try factory reset then reflash rom and gaaps.. I gt tired after two hrs of trying to figure it out i gave up and went back to liquidsmooth 3.0 beta
I'm on Liquid 2.9 now, with no issues sending mms with or without wifi on which I keep reading about. The problem you are talking about with signal levels I had a few flashes ago. I went through a few roms to end up here but I had that problem come back with different roms both TW and AOSP. I toggled my network settings to gsm, turned roaming on, then pulled battery and sim out for 5 minutes or so. Loaded them back in the phone, went back to network settings and toggled back to LTE, and roaming off. Seems to help lock on to the 4g signal for me. Don't know if it will help or not but I hope so.
If you switch roms again you might try to wipe both caches, data reset and wipe the system a couple times before flashing something new. **Just a suggestion that seems to help clear up any left over scraps from previous flashing for me, of course backup like always and it sucks when phones brick but it happens.

[Q] anybody else having 4g connection issues?

About 3 weeks ago after installing the update of liquidsmooth 4.4.4 i randomly started dropping to 3g service in places that i normally had full 4g available. It has slowly gotten worse to where if im not on wifi, than the phone is pretty much useless. i normally have full coverage everywhere. so i originally thought that maybe something had gotten messed up on the update, so i did a clean install of liquidsmooth 4.4, and blackbird kernal and same thing still occurred. also tried carbon rom and slimrom, and no luck. so for the fun of it, i went ahead and reflashed the phone back to stock from backups and rerooted it, updated the modems and reinstalled liquidsmooth w/ blackbird kernal, and same thing. i have went through all the mobile networks settings and tried everything and nothing seems to help, idk if that update screwed something up or if its an issue that others have been experiencing as well, or if im just screwed and my phone phone is dying.... any help is appreciated thanks
rideforlife7 said:
About 3 weeks ago after installing the update of liquidsmooth 4.4.4 i randomly started dropping to 3g service in places that i normally had full 4g available. It has slowly gotten worse to where if im not on wifi, than the phone is pretty much useless. i normally have full coverage everywhere. so i originally thought that maybe something had gotten messed up on the update, so i did a clean install of liquidsmooth 4.4, and blackbird kernal and same thing still occurred. also tried carbon rom and slimrom, and no luck. so for the fun of it, i went ahead and reflashed the phone back to stock from backups and rerooted it, updated the modems and reinstalled liquidsmooth w/ blackbird kernal, and same thing. i have went through all the mobile networks settings and tried everything and nothing seems to help, idk if that update screwed something up or if its an issue that others have been experiencing as well, or if im just screwed and my phone phone is dying.... any help is appreciated thanks
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I'm currently running OmniToad, and ran CM 11M8 for a short while. On T-Mobile at least, with the custom ROMs it's normal to see H+ only when data is being transferred; it will drop back to 3G otherwise. When I ran the stock ROM on the Relay, it would always say "4G" regardless of whether it was in UMTS (3G) or HSPA+ mode. Apps like SignalCheck or CellMapper will tell you which mode it is really in.
On the other hand, if data transmission is only going through as 3G, it could be a phone issue or a tower issue. Is LTE available in your area, or are they just getting it set up? I know when T-Mobile was upgrading the Chicago area to provide LTE, there were a few glitches here and there.
It was stupid for T-Mobile to brand HSPA+ as "4G" but that's a different rant.
Bobby Tables said:
I'm currently running OmniToad, and ran CM 11M8 for a short while. On T-Mobile at least, with the custom ROMs it's normal to see H+ only when data is being transferred; it will drop back to 3G otherwise. When I ran the stock ROM on the Relay, it would always say "4G" regardless of whether it was in UMTS (3G) or HSPA+ mode. Apps like SignalCheck or CellMapper will tell you which mode it is really in.
On the other hand, if data transmission is only going through as 3G, it could be a phone issue or a tower issue. Is LTE available in your area, or are they just getting it set up? I know when T-Mobile was upgrading the Chicago area to provide LTE, there were a few glitches here and there.
It was stupid for T-Mobile to brand HSPA+ as "4G" but that's a different rant.
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yea LTE has been in this area for quite a while now, i had it with my S4 and it worked perfectly, i never had a problem with the service on the relay either up untill a few weeks ago the internet speed and and data coverage was great, not quite as fast as the LTE on my S4 but it was still more than adequate, i used to use the hotspot and stream netflix on my laptop. now i can usually get a text to send but calls usually fail and if i try and use the internet its impossible. it almost seems like its doing the exact opposite of what it should be doing, as soon as i try and use anything (not while connected to wifi) than it drops coverage to 3g/edge/ or to nothing at all. Im leaning towards the hardware failing side, but i figured i might as well give it a shot and post it and see if maybe i wasnt alone. thank you for your reply.
small note of background on me: first time posting ever in this forum but have been using the tools and roms from it for a long time, so im not a complete noob, but i definitely still have a lot to learn.

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