Database Develop

Atrix HD - Having intermittent signal loss using Straight Talk.

The wife and I have Atrix HD phones that we bought used but in great condition a couple months ago. We purchased the Straight Talk at&t compatible micro sim kits from walmart.com and set up our service. We previously had Samsung Captivates also on Straight Talk and they worked flawlessly. I put in my APN settings and I get data and MMS perfectly but occasionally I get a red triangle where my signal bars should be and my phone says "Emergency Calls Only" and I will wait 30 seconds or so and my signal returns. There is no steady decline in signal that leads up to this. It goes from like 4 bars to a red triangle with a cross inside it.
I live in a fair sized town and have always had 3 or more bars of at&t service with phones in the past so I do not think its an issue with poor coverage. I am attaching pictures of my APN settings.
Any help would be appreciated.

Applehater87 said:
The wife and I have Atrix HD phones that we bought used but in great condition a couple months ago. We purchased the Straight Talk at&t compatible micro sim kits from walmart.com and set up our service. We previously had Samsung Captivates also on Straight Talk and they worked flawlessly. I put in my APN settings and I get data and MMS perfectly but occasionally I get a red triangle where my signal bars should be and my phone says "Emergency Calls Only" and I will wait 30 seconds or so and my signal returns. There is no steady decline in signal that leads up to this. It goes from like 4 bars to a red triangle with a cross inside it.
I live in a fair sized town and have always had 3 or more bars of at&t service with phones in the past so I do not think its an issue with poor coverage. I am attaching pictures of my APN settings.
Any help would be appreciated.
Click to expand...
Click to collapse
I'm having the exact same issue since switching to to the 4G LTE micro sim. It only seems to happen on mine when I'm connected to Wifi though. I get the red triangle intermittently. This never happened to me until I went from the old sim to the new one. Can't find anything on it yet.

same thing
The same thing is happening to me here as well but using a Net10 LTE sim card (same as straight talk basically). I notice it the most after I complete a phone call. It takes a minute or two to regain service again. This is really annoying. Would like to see a solution to this problem.

So I worked with Straight Talk support for about 5 days, back and forth, bounced to several reps throughout and nothing substantial has come of it. It seems a little better after they made "adjustments" to my account as they put it, but I still get disconnected from mobile data when on wifi.
Don't get me wrong, their support people were very responsive and seemed to genuinely want to help me, but in the end they said "your ticket has been open for more than 24 hours so it has been closed. If you continue to have issues please open a new ticket." Anyone else have any luck on this?

I also was having this problem found that if you edit existing att apn (phone needs to be rooted)with sqlite editor it seems to work fine.
tether also works fine this way.I am still not able to get lte to work with straight talk even with new sim.

Just to follow up. As usual, it seems with ST support, one rep tells me they have some things they can try once I call back on another line and then I get a new rep who says nothing can be done until 10 people complain about the exact same issue I'm having. I'm assured this is an isolated incident...
I went ahead and purchased a new SIM card (looks different than the first LTE card I had) in case I had a faulty SIM. Worked flawlessly for a day and now it's back to the same issue of cutting out completely throughout the day.

same problem here on wifi get red triangle (especially after phone call).
More since i switched from 4g sim card to lte sim noticed that data disconnect from time to time like make impossible to watch video flawlessly...
with old 4g was yes only 4g but never loss a bite....could watch anything also streaming tv.....now it is impossible.....
the end of the month going to switch to old sim and see if the problem is in the new sim cards they tried may be to limit access or is in the new service doesn't matter what sim card you possess..
we'll see...

htchd2fix said:
same problem here on wifi get red triangle (especially after phone call).
More since i switched from 4g sim card to lte sim noticed that data disconnect from time to time like make impossible to watch video flawlessly...
with old 4g was yes only 4g but never loss a bite....could watch anything also streaming tv.....now it is impossible.....
the end of the month going to switch to old sim and see if the problem is in the new sim cards they tried may be to limit access or is in the new service doesn't matter what sim card you possess..
we'll see...
Click to expand...
Click to collapse
Switching to my old sim was my first thought to. However when I tried it didn't work. I called ST and they informed me that once you switch sims, the old one can never be reactivated. On top of that they don't offer the non LTE sims anymore. Such a pain. Hope you have better luck though.

pentjaksilat8 said:
Switching to my old sim was my first thought to. However when I tried it didn't work. I called ST and they informed me that once you switch sims, the old one can never be reactivated. On top of that they don't offer the non LTE sims anymore. Such a pain. Hope you have better luck though.
Click to expand...
Click to collapse
Some one could correct me if I'm wrong here but I'm pretty sure this is a result of ROMS using a 4.4 rom. Modem crashes. If you want to test it run a Stock ROM... If you are already using a completely stock ROM then Idk what to tell you. But same thing happens to me using any version besides stock. And yes only when on WiFi

metalmike6 said:
Some one could correct me if I'm wrong here but I'm pretty sure this is a result of ROMS using a 4.4 rom. Modem crashes. If you want to test it run a Stock ROM... If you are already using a completely stock ROM then Idk what to tell you. But same thing happens to me using any version besides stock. And yes only when on WiFi
Click to expand...
Click to collapse
I'm on a 100% stock ROM, I haven't unlocked my boot loader, just rooted.

pentjaksilat8 said:
I'm on a 100% stock ROM, I haven't unlocked my boot loader, just rooted.
Click to expand...
Click to collapse
Then unlock your bootloader and try flashing different radios from the different stock fastboots we have. Depending on the fastboot I can have next to none or almost full in my bedroom. For me, ATT JB is in the middle, JB Mex Retail is the best, Bell ICS is the worst. ATT ICS was about the same as ATT JB.

skeevydude said:
Then unlock your bootloader and try flashing different radios from the different stock fastboots we have. Depending on the fastboot I can have next to none or almost full in my bedroom. For me, ATT JB is in the middle, JB Mex Retail is the best, Bell ICS is the worst. ATT ICS was about the same as ATT JB.
Click to expand...
Click to collapse
For the time being, I just switched to Aio and so far so good with LTE coverage and no disconnecting issues. If they return I'll try different radios as you suggested.

So I've been with Aio for about a week now and everything is working great (knock on wood). I've had 2 mobile data drops at work with Wifi turned on, but they only lasted for a second and I do have really bad reception here inside the building. Outside of that no issues at all so far. I'll update if anything changes.

[Q] Phone Roams All The Time

My phone out of nowhere started doing this really fun thing where it drops to roaming at random. From what I can tell, the phone is not making a handoff to the next tower to avoid the roaming. For example, if I'm sitting under a tower with full 4G, everything is fine. If I have 2 bars, it will work in 4G for a while before dropping to 3G roaming. I am able to force it back into 4G by dropping in and out of Airplane mode.
I'm running the official CM11 4/30 nightly (I was on the March Snapshot until this started happening).
First I used some Google-Fu and found it's most likely a bad SIM. I swapped SIMs with my wife, she was stuck in 3G roaming, awesome! Went to Verizon, the switched the SIM, all good, right? Nope, I didn't notice it right away, left the store and thought all was good until I needed to use internet at work.
Next, I thought it was software, so I created a backup, and dirty installed the newest CM11 nightly. No change, so I did a full wipe and install. No luck.
So next I thought maybe the radio was corrupted, so I tried to update the radio, which didn't go so well. I got stuck in a boot loop and had to sideload the old driver and reflash. So I'm back up but still having this problem. I'm thinking my only thing I can do at this point is to go to stock and see if the updated radios make a difference.
I saw another guy is had the same problem, but he had his phone replaced. I'm not sure if that will work for me since I purchased via Swappa (I do have Asurion insurance though).
So what help do I need?
1) Does anyone have any ideas on what I can do to fix this?
2) Are there any good instructions out there for how to flash to stock?*
3) Are there any good instructions on how to re-root and flash back to a custom ROM once taking the newest OTA?*
*Most of the instructions I've found have been pretty confusing and use a lot of acronyms without explaining them. I'd be willing to write some cleaner instructions for a sticky if someone would be willing to help me out with any questions I have.
Thanks everyone, I appreciate any help offered.

EtherBoo said:
My phone out of nowhere started doing this really fun thing where it drops to roaming at random. From what I can tell, the phone is not making a handoff to the next tower to avoid the roaming. For example, if I'm sitting under a tower with full 4G, everything is fine. If I have 2 bars, it will work in 4G for a while before dropping to 3G roaming. I am able to force it back into 4G by dropping in and out of Airplane mode.
I'm running the official CM11 4/30 nightly (I was on the March Snapshot until this started happening).
First I used some Google-Fu and found it's most likely a bad SIM. I swapped SIMs with my wife, she was stuck in 3G roaming, awesome! Went to Verizon, the switched the SIM, all good, right? Nope, I didn't notice it right away, left the store and thought all was good until I needed to use internet at work.
Next, I thought it was software, so I created a backup, and dirty installed the newest CM11 nightly. No change, so I did a full wipe and install. No luck.
So next I thought maybe the radio was corrupted, so I tried to update the radio, which didn't go so well. I got stuck in a boot loop and had to sideload the old driver and reflash. So I'm back up but still having this problem. I'm thinking my only thing I can do at this point is to go to stock and see if the updated radios make a difference.
I saw another guy is had the same problem, but he had his phone replaced. I'm not sure if that will work for me since I purchased via Swappa (I do have Asurion insurance though).
So what help do I need?
1) Does anyone have any ideas on what I can do to fix this?
2) Are there any good instructions out there for how to flash to stock?*
3) Are there any good instructions on how to re-root and flash back to a custom ROM once taking the newest OTA?*
*Most of the instructions I've found have been pretty confusing and use a lot of acronyms without explaining them. I'd be willing to write some cleaner instructions for a sticky if someone would be willing to help me out with any questions I have.
Thanks everyone, I appreciate any help offered.
Click to expand...
Click to collapse
Get anywhere? I'm experiencing the same. Roaming all the time. Going to revert back to stock 12b and see what happens.

dr_w said:
Get anywhere? I'm experiencing the same. Roaming all the time. Going to revert back to stock 12b and see what happens.
Click to expand...
Click to collapse
I'm fairly certain it's hardware. I spent a day using my Galaxy Nexus - full 4G the entire day.
I went back to stock, "bricked" my phone about 3 times doing it (quotes because it was salvageable, but I had a couple hours where I was googling like a madman worried I dun ****ed up). Stock and the new radios made no difference. In fact, with stock it would only go to 4G if I restarted it - airplane wouldn't even bring 4G back. Figure that one out.
I went to the VZW store and I'm basically screwed. I can call LG and see if they'll replace it or use Asurion. Since I got the device off Swappa, they cannot replace it. They tried to order me a new one, but the system wouldn't let them. I don't really have time to call LG, so I'm probably going to Asurion it. Their process is stupid simple to do and they'll have a phone to me the next day. Then I can spend all day tinkering with it and getting CM11 back on, which I feel like I'm an expert at right now.
Sorry, wish I had better news. If you got the device from VZW, go to the store after flashing to stock. They might want to try swapping your SIM first though, so make sure you go to a store that has decent 4G coverage in its surrounding area.

EtherBoo said:
I'm fairly certain it's hardware. I spent a day using my Galaxy Nexus - full 4G the entire day.
I went back to stock, "bricked" my phone about 3 times doing it (quotes because it was salvageable, but I had a couple hours where I was googling like a madman worried I dun ****ed up). Stock and the new radios made no difference. In fact, with stock it would only go to 4G if I restarted it - airplane wouldn't even bring 4G back. Figure that one out.
I went to the VZW store and I'm basically screwed. I can call LG and see if they'll replace it or use Asurion. Since I got the device off Swappa, they cannot replace it. They tried to order me a new one, but the system wouldn't let them. I don't really have time to call LG, so I'm probably going to Asurion it. Their process is stupid simple to do and they'll have a phone to me the next day. Then I can spend all day tinkering with it and getting CM11 back on, which I feel like I'm an expert at right now.
Sorry, wish I had better news. If you got the device from VZW, go to the store after flashing to stock. They might want to try swapping your SIM first though, so make sure you go to a store that has decent 4G coverage in its surrounding area.
Click to expand...
Click to collapse
Thanks dude. I think you are right, flash stock and get a new sim first. I have a hard time believing its a hardware problem. I just wrote this in the other post about roaming:
"Same exact problem here. I was on the phone with Verizon last night. I was running cloudy pro 2 (all his roms for that matter as they are international roms) and kept getting the roaming issue you speak of...with 3g. I went back to 11A completely bone stock. Just like you mentioned, I get 4g but then after like 10 minutes I get 3g with roaming. Of course this is after I spent 30 minutes on the phone with tech support. They 'zapped' my sim card and it appeared to work but no dice. Now before doing all this I downloaded build prop editor and changed the ro.build.target_country to US versus COM as everyone suggested in all the forums, still no dice. I've tried the toggle airplane mode trick...works for like 5 minutes and back to 3g roaming. I think maybe a new sim card and avoid international roms...bummer because cloudys roms are blistering fast. Interesting thing though, I installed xdabebbs rom and malladus' rom, after already running cloudys roms, and get 3g but no roaming. I also verified that Verizon wasn't throttling me or something like that. One more thing I tried is reflashing the basebands and 24A modem, no dice. If there is a build prop fix or some other fix I'd love to hear it.
Edit: One think I'd like to mention. When I had an S4 I switched between stock roms and AOSP roms and the network settings were responsible for causing the roaming because the stock rom was an older build than the AOSP. So when I had roaming, I'd reflashed the AOSP rom, changed the settings then flash the stock rom. It worked great. "
Edit#2: Ok making a little progress. Just did this:
Get a build.prop editor from the play store, and change ro.carrier to VZW and ro.build.target_operator to VZW and ro.build.target_country to US.
Initially it worked but when I make calls it gives me Unfortunately, the process com.android.phone has stopped and I cant make calls. I went into Settings, Apps, reset app preferences...that didn't fix it either.
4G/LTE is pretty solid now but again, I cant make calls.
Edit#3: Nevermind...roaming again.

dr_w said:
Thanks dude. I think you are right, flash stock and get a new sim first. I have a hard time believing its a hardware problem. I just wrote this in the other post about roaming:
"Same exact problem here. I was on the phone with Verizon last night. I was running cloudy pro 2 (all his roms for that matter as they are international roms) and kept getting the roaming issue you speak of...with 3g. I went back to 11A completely bone stock. Just like you mentioned, I get 4g but then after like 10 minutes I get 3g with roaming. Of course this is after I spent 30 minutes on the phone with tech support. They 'zapped' my sim card and it appeared to work but no dice. Now before doing all this I downloaded build prop editor and changed the ro.build.target_country to US versus COM as everyone suggested in all the forums, still no dice. I've tried the toggle airplane mode trick...works for like 5 minutes and back to 3g roaming. I think maybe a new sim card and avoid international roms...bummer because cloudys roms are blistering fast. Interesting thing though, I installed xdabebbs rom and malladus' rom, after already running cloudys roms, and get 3g but no roaming. I also verified that Verizon wasn't throttling me or something like that. One more thing I tried is reflashing the basebands and 24A modem, no dice. If there is a build prop fix or some other fix I'd love to hear it.
Edit: One think I'd like to mention. When I had an S4 I switched between stock roms and AOSP roms and the network settings were responsible for causing the roaming because the stock rom was an older build than the AOSP. So when I had roaming, I'd reflashed the AOSP rom, changed the settings then flash the stock rom. It worked great. "
Edit#2: Ok making a little progress. Just did this:
Get a build.prop editor from the play store, and change ro.carrier to VZW and ro.build.target_operator to VZW and ro.build.target_country to US.
Initially it worked but when I make calls it gives me Unfortunately, the process com.android.phone has stopped and I cant make calls. I went into Settings, Apps, reset app preferences...that didn't fix it either.
4G/LTE is pretty solid now but again, I cant make calls.
Edit#3: Nevermind...roaming again.
Click to expand...
Click to collapse
Alright, so, I have some interesting news.
I got a replacement device from Asurion - not just a replacement, a brand new device out of the box. I pulled it out of the box, swapped the SIM, same exact issue .
I went to Verizon and *****ed up a storm. They basically said "you bought it on eBay, not our problem" (I actually did Swappa - but they don't know Swappa and they do know eBay).
So I got the guy in the store to do some digging, and apparently Verizon has a point opened up with LG as they're seeing this on more and more devices - especially since KK came out. So I figured I could try an older radio. The device was on 12B when it arrived. I just flashed stock to 10B and it's the same issue. I don't know what's going on at this point - nothing makes sense but its apparently a known issue that's been appearing since the KK update.
I'm going to call Asurion and request a new device again since this one is doing the same thing, we'll see what happens. I'm still leaning towards hardware and thinking there was a slew of bad radios that went out.
Just for giggles - and I have no reason whatsoever to think this will work. I'm going to swap out the new SIM that came with the phone. Originally, I just put in my old SIM since the new one was taking too long to activate. I'm having the exact same issue I had previously. With that, I'm going to leave the new SIM in and see if it has the same dropping issue. The guy in the store had mentioned he could swap out the SIM but after a few days it will crap out again... which makes zero ****ing sense. Because of that, I might as well see what happens if I pop a new SIM in. While again, this makes 0 sense, I'm wondering if maybe the phone is frying the SIM somehow?
Again, it makes no sense at all, but I have nothing else left to try other than getting Asurion to repeatedly send me phones until I find one that works or they replace for another type of phone (which I REALLY don't want). I'll drop an edit in an hour or so if what I try makes a difference.
Quick Edit:
I COULD just keep going to the VZW store and have them repeatedly swap out SIMs since it will fix it for a few days .
EDIT:
Got the new SIM installed and it's working. The guy in the VZW store told me that we can keep swapping SIMs and the same issue will happen, which again, makes no sense to me. I'm at a bit of a loss to be honest. I wonder if it's possible that my old device was frying the SIMs (again, makes no sense) and that maybe the new SIM not going in my old device will fix the issue.

What ROMs are you running? A phone frying a Sim does not sound likely at all. I got my new sim card and have been running xdabebbs ROM with no network issues. I feel like my issues stemmed from the Intl ROMs.
Sent from my Nexus 7 using Tapatalk

dr_w said:
What ROMs are you running? A phone frying a Sim does not sound likely at all. I got my new sim card and have been running xdabebbs ROM with no network issues. I feel like my issues stemmed from the Intl ROMs.
Sent from my Nexus 7 using Tapatalk
Click to expand...
Click to collapse
The only ROM I've ever run was CM11.
Same thing happened on stock though after flashing through the LG Flash Tool. Then, with the new phone from Asurion, used old SIM - 3G only. Used new SIM - 4G sticks.

Just Lost All Cellular Data On Verizon

Strange thing has happened to my beloved N6. This was a Tmob purchased device. Activated on via an existing VZ sim & been working since day 1 no prob. However, about 3 hours ago or so, its lost all its cellular data. Tried reboot, take sim in/out, etc. No luck.
Also, under Network Operators, choosing VZ and trying to register fails - Selected network (Verizon) unavailable
Anyone seeing similar behavior?

By ANY chance, did you put the TMobile SIM back in? For whatever reason, when I did that, I had to factory reset my device to get it to recognize the VZW SIM.
buddhatown said:
Strange thing has happened to my beloved N6. This was a Tmob purchased device. Activated on via an existing VZ sim & been working since day 1 no prob. However, about 3 hours ago or so, its lost all its cellular data. Tried reboot, take sim in/out, etc. No luck.
Also, under Network Operators, choosing VZ and trying to register fails - Selected network (Verizon) unavailable
Anyone seeing similar behavior?
Click to expand...
Click to collapse

anaphora68 said:
By ANY chance, did you put the TMobile SIM back in? For whatever reason, when I did that, I had to factory reset my device to get it to recognize the VZW SIM.
Click to expand...
Click to collapse
I dont think so, but there are an awful lot of sims floating around my house. Strange as it happened mid morning after I had been using data for quite some time. Then poof. No signal.

What state you live in? Indiana has had a blackout for all cell carriers since yesterday/today around knox,greene, and other counties. Bloomington, columbus.

That really, really sucks. Is it possible that Mobile Data is out in your area?
buddhatown said:
I dont think so, but there are an awful lot of sims floating around my house. Strange as it happened mid morning after I had been using data for quite some time. Then poof. No signal.
Click to expand...
Click to collapse

VZ data was ok for co-workers, so data was def good.
Ended up doing a factory reset, and all is good again. I can see a difference in my Cellular Network Screen though...
When I first got it, it was using 'Global' as the 'Preferred Network Type'. When it was busted early today, that was set to LTE with no option for Global. Also, earlier, it would let me scan for available carriers...now after the factory reset...its locked into VZ once again.
I didnt do anything, to my knowledge, to cause it to do any of this...And thats the scary part.

buddhatown said:
VZ data was ok for co-workers, so data was def good.
Ended up doing a factory reset, and all is good again. I can see a difference in my Cellular Network Screen though...
When I first got it, it was using 'Global' as the 'Preferred Network Type'. When it was busted early today, that was set to LTE with no option for Global. Also, earlier, it would let me scan for available carriers...now after the factory reset...its locked into VZ once again.
I didnt do anything, to my knowledge, to cause it to do any of this...And thats the scary part.
Click to expand...
Click to collapse
I saw a post somewhere about changing some APN settings from ipv6 to ipv4 but Verizon doesn't have these or do they?

crashercarlton said:
I saw a post somewhere about changing some APN settings from ipv6 to ipv4 but Verizon doesn't have these or do they?
Click to expand...
Click to collapse
here you go.
http://apn-settings.com/verizon-4g-lte-apn-settings-detailed-configuration-steps/

Happened to me as well. I'm unlocked and rooted on a custom ROM. It just happened to me 2 hours ago. I had to reflash the ROM to gain service again. Bought from Motorola and used on Verizon with an activated sim.

Here too. Motorola bought using an activated verizon sim. Happened a few times. Once in a well covered 4g area. That time recovered on it's own.
Last night happened again. Reboot didn't fix, but airplane mode toggled on and then off did the trick.

I had to flash my ROM again and go through activation before I was able to regain service again. Not sure what happened.

This has been happening to me since last night. The signal icon shows I have half signal, but no LTE and it has an exclamation point on the bars.

idksomuch said:
This has been happening to me since last night. The signal icon shows I have half signal, but no LTE and it has an exclamation point on the bars.
Click to expand...
Click to collapse
Are you running a cm based ROM? Some cm Roms have different RIL's and can cause this. Mine is clean stock ROM so I'm not sure why it happened.

selayan said:
Are you running a cm based ROM? Some cm Roms have different RIL's and can cause this. Mine is clean stock ROM so I'm not sure why it happened.
Click to expand...
Click to collapse
It was actually my T-Mo account. It was suspended for having an overdue bill. It was our first bill with T-Mo and they never informed me that we were not signed up for paper bills, only paperless. I just made the online payment 20 mins ago and everything is working fine for everyone on our account. I also changed our paying options to paper billing. Thanks though!

idksomuch said:
It was actually my T-Mo account. It was suspended for having an overdue bill. It was our first bill with T-Mo and they never informed me that we were not signed up for paper bills, only paperless. I just made the online payment 20 mins ago and everything is working fine for everyone on our account. I also changed our paying options to paper billing. Thanks though!
Click to expand...
Click to collapse
You guys were starting to scare me here as I haven't had any issues.
Had to post... That is an awesome screen name

Larzzzz82 said:
You guys were starting to scare me here as I haven't had any issues.
Had to post... That is an awesome screen name
Click to expand...
Click to collapse
Well with my issue I have no idea why I lost service. I notice that with any ROM you flash the cell network on version stays on global. Even stock, I had mine set to LTE which said recommend but that may have been why I lost all service and had to reflash to get it back.

Fastboot oem config carrier vzw
Sent from my Nexus 6 using XDA Free mobile app

poitee said:
Fastboot oem config carrier vzw
Sent from my Nexus 6 using XDA Free mobile app
Click to expand...
Click to collapse
What does this do?

selayan said:
What does this do?
Click to expand...
Click to collapse
+1

According to the cyanogenmod wiki it fixes the vzw data problems.

[SOLVED] Phone network issue

Hello everyone,
Informations
Phone : Nexus 6
ROM : Euphoria OS 1.0 with included kernel
I have a little problem with the phone network...
I have just install the ROM (3days ago) and everything worked fine.
After the first reboot, I had a network problem: no more network (just phone)
Bluetooth is OK,Wifi also ect...
No extra apps installed.
Any idea?
Thanks
Edit : French phone/network (FreeMobile)

I am having issues over here also. My data randomly stopped working on my way down to memphis, randomly would start to work again. I tried a new rom, it slightly got better, but would cut out of data every 5 min. Kinda got it better by switching to tmo in the apn's. Now just installed sinless, and it is no longer working again.

So, same problem and no fix...? :/

Holy cow! I thought I was the only one! I mean this problem really sucks(and I have wasted a lot of my hours trying to fix it), and have been thinking of creating a thread on this problem until I saw yours.
Okay let me start with what I'm on:
N6: 64gb blue
Rom: Stock
Rooted: Yes
Any other modification: No, only think I did was unlock and do chainfire su root.
Network: VZW
I have had this phone since Dec with no issues other than random reboot every so often.
Now to the problem I had, I went out to the middle of MO for a weekend get away (on Feb 14th). The whole time I was out there it showed 1x even though I was still getting LTE speed. Didn't think much of it until we moved further into the hilly parts of MO were I lost service. Thought it was just where we were at, and thought it would come back once we got back to the hotel we were staying at. It never did. It would say "No Network found" only allow 911 calls.
Spent the next 4 days working With VZW with several trips to the store, and talking to tech support. They made sure my IMEI was not blocked on their side. We used several sim chips, they would all do the same thing, quickly connect then disconnect and go back to no service.
So I did a factory reset, still didn't help. I finally did a fastboot flash of 5.0.1 stock again, this fixed the issue. Until I used titanium backup to restore my sys setting. Then it would drop and not reconnect after the reboot. So I did fastboot flash again and it hasn't happened again since last Thurs. I just restored my app's again to make sure it wouldn't fail to connect over the weekend, and rebooted several times. No issues so far, but I called Motorola and they are RMAing me a new one, because I don't have any trust in this one anymore. They are out of 64gb ones, and they will get back to me in a week.
Questioned to anyone who has gotten a RMA from Motorola:
Are their "like new" replacements okay? I got a few from them when I had my droid x, and they were crap. So I wasn't sure if that is still the same for the N6 or not. I have a feeling its not, but just wanted to get other peoples input on that process.
Thank you for creating this thread, and for everyone's time!
Edit: Had the same issue network wouldn't work, however WIFI, Location, Bluetooth would.

Check your APNs..... make sure you are on the correct one, and that both of APN protocols say IPv4.
Sent from my Nexus 6

APN is for Internet(3G) and MMS, no?
Because we have a phone network (call & SMS) issues.
On my side, APN are OK, but still don't work...
Edit: New !
Everything works fine on :
- Paranoid Android 5 Alpha 1
- Chroma (Latest)
But not work on :
- Euphoria
- Stock ROM
Edit 2 : It works now !!
I seen that I had several issues around the APN side. I mean, I can't add APN, sometime I can. Sometimes APN reseted themselves, sometimes it was OK. Then, I had read the solution above: security tab.
I had just remove my 3rd party lockscreen (HiLocker). Restart the phone and voilà ! After the reboot, my phone ask me the pin code, and all APN are here.
I hope it can help...!

Some times I will see the APN settings, and sometimes I won't. Right now I don't. When it does show up it shows VZWINTERNET selected. There are ton of other options, but they don't work either when the problem was seen.

Is what your experiencing data going in and out? I'm on Sprint and I thought maybe it was just an issue with Sprint. I have or need to read up more on APN because it does get bothersome. I even have issues where sometimes my SMS gets hung up for minutes in sending mode before they actually send. Would be nice to have this corrected.
Sent from my Nexus 6 using Tapatalk

Casper34 said:
Check your APNs..... make sure you are on the correct one, and that both of APN protocols say IPv4.
Sent from my Nexus 6
Click to expand...
Click to collapse
This solved my problem. One of them was on IPv6.
T-Mobile Nexus 6; 32GB
Thanks!!

xjedi said:
This solved my problem. One of them was on IPv6.
T-Mobile Nexus 6; 32GB
Thanks!!
Click to expand...
Click to collapse
The thanks should go to @Circaflex though... he told me how to fix my issue and thought it could be useful here. I'm glad it was.
Sent from my Nexus 6

Casper34 said:
The thanks should go to @Circaflex though... he told me how to fix my issue and thought it could be useful here. I'm glad it was.
Sent from my Nexus 6
Click to expand...
Click to collapse
No my whole problem was that it would drop and no matter what I would do wouldn't reconnect to the network. I tried a lot of things to fix it (see above). APN would appear and then disappear from the menu. Right now its working on the network as of last Thurs. and APN options is not there.

collegencmc said:
No my whole problem was that it would drop and no matter what I would do wouldn't reconnect to the network. I tried a lot of things to fix it (see above). APN would appear and then disappear from the menu. Right now its working on the network as of last Thurs. and APN options is not there.
Click to expand...
Click to collapse
The APN option will not show for a CDMA Carrier, Sprint or VZW, in your case VZW. APNs are set by the Sim from Verizon so you shouldn't be messing with those, nor should the option show up under mobile network settings.

It was like you. Sometimes network was OK, and sometimes, it was down...

So current working theory is that it was a software issue that cause the problem. I'm just unclear as to why it happened, and how to stop it from occurring again . I do have OpenDNS enabled on the phone, could that cause the problem?

Heres my problem, I'll drop out of an LTE zone, and 3G/HSPA will come on line. Only if its on 3G I never get any data, and sometimes with HSPA too. Not until LTE comes back on line again, but then if I'm trying to stream say music 3G/HSPA wont let LTE take over again for a pretty long while.

GS6 Active Network Issues Unlocked

Hello! I Had my Blue Camo GS6 Active 64 Stolen last sunday, Bought A White GS6 Active 64GB Model to hold me over and its in real good condition. But its Network Unlocked and noticed the setting on my 32GB Black And my old Blue 64 phone were set to GSM/UMTS. This for some reason is stuck on WCDMA? I Don't even see a GSM/UMTS Option and was wondering what i should do here?
I Did a few system updates thinking it may automatically work but whoever had the phone before must of changed something, even a Factory Reset didn't solve the issue. So i get the phone in the mail, power it on and everythings good no SIM yet but it had 4 bars, Pop in the AT&T SIM and restart and bam No Signal at all. I Changed it to GSM And get nothing. I Notice if i set to LTE/UMTS When i'm up the road it actually pops up 4G LTE And works too! But i get home and Poof No Bar. Its probably cause it usually does get knocked down when i walk inside to 4G But never no bar.
Anyway i can Flash a Stock OEM Modem? Or a way to force the Network settings to Reset to OEM? Had this... well that GS6 Active for 3 years never had an issue but mine was AT&T Network Locked i never unlocked it. This is Network Unlocked and notice a lot of what seems to be Foreign Networks? Network settings I've never seen before that's for sure.
Help will be appreciated!
Really need this to just work by Monday and AT&T Support sucks lol! Best buy couldn't help me, 3 AT&T Stores couldn't help me cause they don't sell it anymore and i didn't buy from them. But i know its fixable i mean i get signal if i flip around to the WCDMA Setting when i'm home, And before i walk outside i hit LTE/UMTS and i do get a 4G LTE Signal when i get up the street. but i'd rather it Automate like it did before so i don't have to keep doing this.

Yeah this sucks, Like Mint White 64GB S6 Active. Just this i didn't expect. I've Switched sim cards back and forth, took the sim out and tried to change the band but that doesn't work. I've gotten to the Network System menu and put everything on Auto. I Have it set to LTE/UMTS and i get nothing, i take the SIM Out and restart, 4 bars are there. put the SIM In and Boom no signal. I've tried to change the GSM/UMTS Band to Automatic but it just says Unsuccessful. But i have that feeling if i can get it to say Successful it will work.
Anyway to use my laptop to connect via ADB And Force the band to change to auto? Or anyway to get it to stick to Stock settings? I Still suspect whoever had this before did something to the Radio and Network settings and i can't figure it out for the life of me. AT&T sure won't help me lol! And Samsung just wants me to bring it to a repair shop. While i was actually at a few repair shops around here and they know nothing about these.
It's the only phone i'm comfortable with. The S8 Active is ok but without physical buttons it doesn't really serve me like this did... and i don't really care for Bixby button can't be customized. Also noticed Otterbox doesn't make Defender series cases for it so i'd have a bit of trouble getting a beefy case on it.

Ahhh.... i get some signal in WCDMA Preferred. Fixed a SMSC Issue so text's go out and i receive them if i move around a lot.
Signals still bad not like it used to be. Why do i get a Signal On WCDMA But not GSM Auto Or LTE/UMTS? Is there anyone that can help me get to any advanced network option's or a way to change the Band to Automatic? I Try to select Automatic Band which is the default i believe and it just says Unsuccessful.

Have you tried just refalshing stock rom???
I know you already have done this but sometimes it doesn't work first time(few have mentioned issues that took several flashes to solve it)
The reason folks are not replying is quite possible know one has any idea why this has happened.
I had an s6 Active that everything worked other then 4G and nothing worked.. It was a factory refurbed and Unlocked. And no matter what I did it simply would not worked... I returned it and go a replacement... It suggested it had been damaged internaly in someway..
Can you return yours for a replacement/refund???
Sorry am not actually able to help.
regards
Lohtse

I might return it. I figured out why messages were not sending i messed up the smsc settings lol!
Very unique issue here i see 4G pop up and i get calls and data flows. Sometimes 4G LTE magically appears and everything stops working till 4G shows up.
Pretty hard to find this GS6 Active in 64GB anymore.
If i take my sim card out and dial *#*#2636*#*# i think? Or it might be *#*#0011*#*# it brings up network options. I notice if my sim cards in that menu shows up empty. Something maybe wrongly set in there but not sure how to tell. Never found a way to successfully set the GMS/UMTS Band. And with no way to really root it or change anything through the pc is probably going to make this even more difficult. Phones in great condition though i dont think theres damage i believe its a network setting somewhere i missed... or at&t sucks lols! Every sense i got robbed on the 18th its been nothing but a big problem getting a phone working again.

Reflashing stock rom? Like Android 5? Its in Android 7.0.1 now. Id be interested in doing this but going back that far is spooky i dont wanna destroy it. Ive seen people say its possible and others say its not possible to go back.
That would probably work though! When i got my S6 Active Camo Blue 64gb New it was Android 5.0.1 and i think more network options were available. Then in 7.0.1 they all disappeared.
Never had issues on that phone i can't believe it was robbed from me. Not like i dropped it or lost it either it was robbed from me! Police did nothing even with the fact they threatened to kill me and everything. Police did nothing... and after 14 hour shift im not exactly ready to fight with 5 people.