Database Develop

Signal keeps going in and out

Device: Tilt
Carrier: AT&T
ROM: Duttys_WM6.1_Official_5.2.19209_1_58_16_27
Have been running this rom for a couple of weeks with no problem. All of the sudden yesterday I noticed signal kept coming in and out, wasn't able to make or receive calls. Since then, I've tried a couple of diff ROMs, diff radios, and for some reason it just doesn't seem to catch a consistent signal. Signal keeps jumping from 3G to EDGE to having nothing. When I try to make a call or go online, signal just goes dead.
Any suggestions onto what could this be?
Thanks

same issue here....in NYC
i'm having the same issue.
if you switch the band signal (click on the phone icon on the top..then go Bands tab) to GSM. all is well. you will no longer rotate b/w EDGE and 3G when trying to make calls/internet. but when you revert the setting back to Auto, the phone may work for a short time while it still thinks its under EDGE. then when it senses 3G network available, it will try to connect to that signal and disconnect both your voice and data. i'm in New York City, so trying to get on 3G network is not an issue.
ive had this issue for about a week now thinking my setting got all messed up somehow. i've reflashed my tilt to the original ATT ROM from the HTC ATT ROM update from one of Dutty's ROMs. still doesn't work. i'm starting to think the 3G chip is fried...
AT&T technicial support can't help either. the guy i had on the phone said there was a 3G tower literally a block away...
might have to call warranty to get it exchanged...
does anyone else have any ideas why this does this?

Change the radio and see if this helps. I keep a copy of all 6.1 radios on my phone so I can flash on the go for the best signal possible.

P1Tater said:
Change the radio and see if this helps. I keep a copy of all 6.1 radios on my phone so I can flash on the go for the best signal possible.
Click to expand...
Click to collapse
I've tried a couple of different radios with no luck. Thing is, it just happened out of nowhere... yesterday morning worked, yesterday night, it was acting up, no change in ROM or radio...
Thanks for your input.

sum1kool said:
I've tried a couple of different radios with no luck. Thing is, it just happened out of nowhere... yesterday morning worked, yesterday night, it was acting up, no change in ROM or radio...
Thanks for your input.
Click to expand...
Click to collapse
If that is the case, then I would definitely call your service provider and see if they are having issues.

P1Tater said:
If that is the case, then I would definitely call your service provider and see if they are having issues.
Click to expand...
Click to collapse
And If Your Cell Provider Happens to Be AT$T. Then the answer is definately yes.

JimmyMcGee said:
And If Your Cell Provider Happens to Be AT$T. Then the answer is definately yes.
Click to expand...
Click to collapse
haha... yeah, thats kinda what i figured. so now im "3G-less". im on EDGE only like my old blackberry... at least i have wifi, gps, camera in one device unlike any current BBs out there... still kinda sucks. ill give ATT-tech a shot anyway...

So, I called AT&T yesterday... was on the phone for a couple of hours with NO RESULT! They did they all the towers are working around my area with no problem though... i think it might be what finaldock said, "3G might be fried"
Any suggestions anyone?
Oh yeah, I'm running the ROM below now... still w/the same problem.
Duttys_WM6.1_5.2.19700_Hybrid V2_1_65.14.06

Voice and 2G/3G connection every now and then falls away.

Voice and 2G/3G connection every now and then falls away.
--------------------------------------------------------------------------------
I have the following problem.
Hi I have a plan with extra fast with endless online. But every now and then suddenly falls away and my connection voice and 2G/3G can I just restore it in airplane mode to turn back and pick up.
Are there more people with same problem? I have an G1. The SIM card only 8 weeks old.
I like to hear from you.

I have experienced this before also.

Happens to me fairly often too.

Exactly just had this happen to me today while in the grocery store. Rebooted and it was back, but still weird.

I actually used to have that problem too, where data just went away. Rebooting worked, but then one day a reboot didn't work, next day I got 3g. Then I decided to go to hero roms and haven't had the problem since, so I think that hero does something that fixes the network

Sometimes i go from a 3G to G then ut decides to go to edge.There are even times when it doesnt connect to data at all.

you go in and out of coverage area's and that's what happen's, t-mobile's 3g network isn't as expansive as they'd have you believe, plenty of pockets/holes throughout, even in places where it should be all 3g.
how is this post not moved/deleted/flamed yet for being in the dev's section :-D

mpeezay said:
you go in and out of coverage area's and that's what happen's, t-mobile's 3g network isn't as expansive as they'd have you believe, plenty of pockets/holes throughout, even in places where it should be all 3g.
how is this post not moved/deleted/flamed yet for being in the dev's section :-D
Click to expand...
Click to collapse
Yeah, but I mean that I would have data then it would turn off and it would turn back on in the same place after a reboot.
And I think most of us just finally gave up on keeping questions out of the development sections, it is a lost cause. At least for me it is

Well yes staying on tmo might as well be a lost cause...i struggle to stay on 3G and even on data period, i doubt verizon or sprint would give me these troubles...

It's not a coverage problem, It can happen at the top floor of my school where usually I would have full bars, and as said it's fixed by switching into Airplane mode and then back to normal mode.
I think it happens when it's in my pocket and the coverage strength goes up and down a lot, maybe it gets a bit confused lol (Although it didn't happen on the stock firmware, running Cyanogen 4.2.7.1)

Its not only T-mobile, I too have that problem that too being in India on Airtel Also had these problems at National Roaming... Means When I was Out of local Network too... So its not the Problem of Coverage...

There's an open bug for this particular problem
Cf:
http://code.google.com/p/android/issues/detail?id=2845

I've had this problem since day one on my G1, it doesn't matter what ROM I'm running, it even did it with the stock ROM.
It seems Android isn't so great at reconnecting you to the network once you've lost signal. Ideally you need a process running in the background to reconnect you - think 'No Signal Alert' in the market with an option to scan for networks then reconnect you.
I've got a shortcut on one of my home screens to the network operators scan page as I have to do this most days
Good old T-Mobile coverage..

Well with the rumors of Sprint and T-Mobile merging hopefully they will band together and give us better coverage. 3G and or 4G all day and all night would be HUGE!!!
If any big CEO's is reading this from either of these companies, PLEASE MAKE THIS HAPPEN!!

legend221 said:
Well with the rumors of Sprint and T-Mobile merging hopefully they will band together and give us better coverage. 3G and or 4G all day and all night would be HUGE!!!
If any big CEO's is reading this from either of these companies, PLEASE MAKE THIS HAPPEN!!
Click to expand...
Click to collapse
HA Ha Ha Ha............ NOT GOING TO HAPPEN!!!!!
We would never ever take that network over....Ours maybe spotty but we WILL have the fastest 3G Network................4G is a joke...if you look at the fine print 4G is their goal but isn't even possible yet....DT (t-moble Mother company) over seas was looking into buying sprint but they're in way too much debt....issues from this post sounds like simcard or issues with the IHLR (our backdoor) so call t-mobile to make sure it cannot be fix on our end or... it can be a bad radio download or flash...I have 1 bar on 3G and 2 on edge but i have never had the issues stated in this post so coverage is not it!!! hope this helps!

I also have issues with signal being dropped or getting hung. My G1 will be sitting in the same place for an hour or longer and sometimes it just stops transfering data. I'll check it by going to the market and it can take a few min before anything happens. Sometimes when I download an app from the market it will take up to 5 or 10 min to see anything transfer. I haven't noticed any issues with taking or making calls but data transfers are touch and go. Now sometimes I won't have a problem all day then the next day...in the same spot with great coverage....data transfers just seem to be sketchy. I don't know if it's t-mobile or the roms but something is quirky.

smartin4166 said:
I also have issues with signal being dropped or getting hung. My G1 will be sitting in the same place for an hour or longer and sometimes it just stops transfering data. I'll check it by going to the market and it can take a few min before anything happens. Sometimes when I download an app from the market it will take up to 5 or 10 min to see anything transfer. I haven't noticed any issues with taking or making calls but data transfers are touch and go. Now sometimes I won't have a problem all day then the next day...in the same spot with great coverage....data transfers just seem to be sketchy. I don't know if it's t-mobile or the roms but something is quirky.
Click to expand...
Click to collapse
Actually i have seen that happening with the market too but only with a theme added to the rom...must be something with background data transfers and the theme using too much memory....but is not an issue at all on non rooted phones....i checked at work!!!

curious
Not to get off the subject but to the t-mobile guy I want to know how did u get the job with them? I applied a few times but got no response.

bryanpen said:
Not to get off the subject but to the t-mobile guy I want to know how did u get the job with them? I applied a few times but got no response.
Click to expand...
Click to collapse
Pm me since off topic....

prl hack?

do any of you guys know of prl hack or something similar that woud let me roam on verizon with 3g speed? thanks a lot
Sent from my HERO200 using XDA App

Sprint doesn't have 3G where I live, so I found a work around. You will need a stock htc dialer. Press ##775# and you will need to enter your MSL which you can get from Sprint (Edit: Or you can download msl reader from market). I don't remember the exact options in the menu, but it's not difficult to sort through. There are several PRLs you can use from Verison, but some will show your data as roaming. I use this one:
http://www.the-answerman.com/sidlist/prl/40060.prl
I've had it for three months now, and no data roaming. I get great reception (even in elevators) and voices come through clear.
Edit: This is under the assumption you have Sprint service.
When I upgraded to the Evo in December, and I would use this, it would show on the bill as data roaming.

bcarter2000 said:
Sprint doesn't have 3G where I live, so I found a work around. You will need a stock htc dialer. Press #775# and you will need to enter your MSL which you can get from Sprint (There is a thread somewhere about how to get it without calling Sprint, but I had already called by the time it was posted). I don't remember the exact options in the menu, but it's not difficult to sort through. There are several PRLs you can use from Verison, but some will show your data as roaming. I use this one:
http://www.the-answerman.com/sidlist/prl/40060.prl
I've had it for three months now, and no data roaming. I get great reception (even in elevators) and voices come through clear.
Edit: This is under the assumption you have Sprint service.
Click to expand...
Click to collapse
Yeah I updated to this prl, but still I roam with only 1G speed, any other prls that I can find please?

danielt021 said:
Yeah I updated to this prl, but still I roam with only 1G speed, any other prls that I can find please?
Click to expand...
Click to collapse
Here are the rest of the Verizon PRLs that I was able to find. There are around 7 or 8 in the zip file. Use whichever one works best for where you are...
I take no credit for making any of these modified PRL files. All credit goes to techknowfile from this thread: http://forum.xda-developers.com/showthread.php?t=696073
Hope this helps...

steindog99 said:
Here are the rest of the Verizon PRLs that I was able to find. There are around 7 or 8 in the zip file. Use whichever one works best for where you are...
I take no credit for making any of these modified PRL files. All credit goes to techknowfile from this thread: http://forum.xda-developers.com/showthread.php?t=696073
Hope this helps...
Click to expand...
Click to collapse
Thanks for your help.

Any info on Checking Band priority? EPST?

As some of you may have read, my phone is somewhat hosed.
I have a new one on the way (which might be a refurb). But I have nothing to lose playing with this one.
I highly suspect, one or more of the bands are disabled.
If you google around you see lots of folks fiddling around with Band Priorities and/or Enabling. Especially with "TirBand" phones (which this is). (Nexus 5 and HTC One, HTC One Max).
Most of the time people access this through EPST using ##4636# but my phone does not respond to this.
But the Galaxy S5 and HTC One (M8). Are in new Territory with Spark and even more bands I believe. So their might be new Menus for these phones and that info has not been leaked out yet.
Currently if I'm in a formally strong 4G area I get great 3G (no 4G at all). Yes 4G is enabled.
If I'm in Moderate to Weak 3G area. I get 1x or nothing. It really feels like a Band got shut off.
I'm not sure what caused it.
I was running Corporate PRL (56018). That seemed to not be causing any harm. Ran it for a few weeks.
Ran Barebones 1.0 (on stock firmware) and that ran fine too. After that it was down hill.
My only issue was Roaming Guard was on and Locked out. Which others have reported is a long standing issue (was a problem on M7 too).
All I needed to do was do a Full Wipe and enable it before it gets locked again. Not everyone has this locking issue, but MANY do.
I updated to OTA firmware. Not sure of status here because I had WIFI on normally.
Then I decided to run BadBoys Harman. Without firmware. Again not sure of status here as WIFI was on.
Somewhere I believe I did an Update Profile. I suspect at that point I was hosed.
It was when I put BadBoys on that I noticed an issue because he shows when you are on 1x.
Not sure if I started to see 1x that was before or after update profile.
I don't know if it's combination of having been on the corporate PRL when I did the update Profile or what.
I always try to do update Profile over mobile network.
I was not clear what the problem exactly was until I "Fully" upgraded (Harman with Harman firmware).
Just to be clear, I'm not blaming anyone but me. And there may be nothing wrong with anything out there than more or my phone. I just don't know.
I highly suspect it's something trivial that got turned off or the phone so happened to lose a band or antenna.
But I suspect it's some combination of SuperCID, Corporate PRL, new OTA Firmware or Harman Firmware along with Update Profile hosed me.
I do have new phone on the way. But I sure would like to know what happened.
I didn't do anything "out of bounds" from this forum. I simply may have done things in a different order or something.
I am S-OFF and running TWRP 2.7.0.2
I have reactivated, wiped the gazoo out of it. Ran Harmon RUU. etc.
I sure wish there was an RUU for the Shipped Config. Or even for the OTA version.
Seems a coincidence the phone "Broke" just when I started Flashing Firmware and Updating Profile.
I know I was good on Stock Rooted, S-OFF, Corporate PRL. Because I'd even see 4G at my house occasionally which is a reach. Now I'm lucky to get 1x at my house.
I will tell you this, I'm staying on Stock Firmware and Stock PRL when the new phone arrives until more is learned.
I will try to compare phones as best I can.
Which is another reason I sure would like to see the Band configuration on this phone so I can compare it to the new phone.
Thanks for any tips.

I think you were trying to do *#*#4636#*#* to access the Menu. The EPST command would be ##3282#.

I'd be interested in your comparison. I think I may have a hosed phone as well. I have it on cdma only and I'm constantly losing data, dropping calls, and missing calls in places I didn't before. The only roms I have flashed are Captain's 1.54.651.8, and my BareBones rom.

Captain_Throwback said:
I think you were trying to do *#*#4636#*#* to access the Menu. The EPST command would be ##3282#.
Click to expand...
Click to collapse
Thanks when I saw people posting *#*#4636#*#* I stupidly assumed they were trying to get past some HTML issue with ##. *#*#4636#*#* works !!
Turns out when you use the Google Play app called "Advanced Signal Status" when you click "Advanced" it brings up the same Menu as *#*#4636#*#*.
I didn't realize it was bringing up something built into the phone.
Any way,
It looks like on HTC Max it was *#*#3282#*#* which does not exist on HTC One (M8). You have to use ##3282# but that does not offer the same Band settings that HTC Max has with *#*#3282#*#*.

Just a quick reminder that Questions go in the Q&A section.

metalfan78 said:
I'd be interested in your comparison. I think I may have a hosed phone as well. I have it on cdma only and I'm constantly losing data, dropping calls, and missing calls in places I didn't before. The only roms I have flashed are Captain's 1.54.651.8, and my BareBones rom.
Click to expand...
Click to collapse
When and how often have you:
Updated Profile?
Changed Firmware?
Changed from factory PRL?
I think my problems may have started after I flashed Captains Firmware for OTA (which I got the link from you ROM thread).
I'm not saying it was, but it was around that time. It may have been something to do with PRL's but those are usually harmless and very revertible.
I'm 99% sure I was ok on your ROM with Stock Firmware. Except for Roaming Guard on and locked out. Not sure if that is an early symptom of problems though.
Some things in firmware (on past phones) are not revertible (ever !!!)
Your symptoms sound a lot like mine. I only get good 3G in locations where I used to get good 4G. And I get no 4G at all now.
My phone generally works but many calls go to voice mail or get dropped. Or end up being one way (one of us can't hear the other).
I think it's one of these:
Band issue (disabled or low priority)
Some sort of ID issue that got lost (like a lost security Key)
Some of Power Saver issue (i.e. Extreme Power Save kicking in when it shouldn't)
The reason I mention power is it does this.
WIFI On
Running "Advanced Signal Status"
All looks ok.
Shut off WIFI and things go nuts.
EVDO (data) RSSI Signal: drops to -120db (0%)
Then network type switches to 1xRTT from eHRPD.
It's like the extreme power saver is on. Which, guess what, OTA firmware was supposed to enable !!!
I have tried disabling it in settings. But I think something is haywire.

This is what extreme power save does. And came with the OTA update.
QUOTE: Basically it shuts down all connections but still allows phone calls and texts to come through. You can manually refresh e-mail if you want — but only in HTC's e-mail app. Your smartphone essentially is turned into a dumb phone. And to make sure you don't cheat and try to actually make it do things, the M8 gets a new home EXTREME home screen, with shortcuts to the Phone, Messages, Mail, Calendar and Calculator apps. To exit EXTREME mode, you'll need to hit the dedicated "Exit" button.
HTC says that with only 5 percent battery remaining, you can eke out 15 hours in this EXTREME mode. On a full battery? It'll last something like a dozen days. We'd consider this to be more of an emergency mode than EXTREME, however. END QUOTE
It sure feels like this is what my phone is doing. I think it's stuck on Extreme Power Save mode (in the RADIO only).

I flashed the firmware twice, updated prl many times, never changed prl. Sounds like same symptoms.

metalfan78 said:
I flashed the firmware twice, updated prl many times, never changed prl. Sounds like same symptoms.
Click to expand...
Click to collapse
I highly suspect it's not PRL. When you say "update prl" I assume you mean from settings -> system update menu.
I suspect firmware. Of which there is nothing available to go back to.
Can you get 4G?

I rarely get 4g, it hasn't been fully implemented where I am. I got it on my gs3 only sometimes. And yea, updated prl through settings
---------- Post added at 08:58 PM ---------- Previous post was at 08:18 PM ----------
I'm definitely going to a Sprint store. I was just on Sprint chat and they confirmed it is not network related but a defective device. Dammit.

This is what extreme power save.came with the OTA update.

HTC/Sprint removed the band priority section from the menus in the Max so it's either hidden deep OR it's not there and Sprint is controlling what band you actually use on their end which is highly possible....
Sent from my 831C using Tapatalk

sgt. slaughter said:
HTC/Sprint removed the band priority section from the menus in the Max so it's either hidden deep OR it's not there and Sprint is controlling what band you actually use on their end which is highly possible....
Sent from my 831C using Tapatalk
Click to expand...
Click to collapse
Ahh, thanks for the info. I think that's what is messed up on my phone some how. Some Key or ID so it knows the appropriate ones to pick.

I've been switching back and forth on firmware and flashing mainly between Viper Rom and Bad Boyz H/K Rom without any issues at all. I had one issue where I couldn't get data or roam, I temporarily fixed by flashing some stock files, but since a clean install all has been well. I've updated profile and prl quite a few times without any issues so far.
I don't get lte at home, but it worked great in Indianapolis over last weekend. Just thought I would share the info.
Also s-off and super cid if that helps any.

dazednconfused said:
I've been switching back and forth on firmware and flashing mainly between Viper Rom and Bad Boyz H/K Rom without any issues at all. I had one issue where I couldn't get data or roam, I temporarily fixed by flashing some stock files, but since a clean install all has been well. I've updated profile and prl quite a few times without any issues so far.
I don't get lte at home, but it worked great in Indianapolis over last weekend. Just thought I would share the info.
Also s-off and super cid if that helps any.
Click to expand...
Click to collapse
That's interesting you lost Data / Roam and managed to got it back. Perhaps if I had put the dialer on like you did at that first problem I would have got it back too.
So you are running H/K firmware as well?
I've made it as close to stock as I could including recovery. Went to 4G area (where I can get 3G). Factory Reset (from boot loader), Redid Activation, Updated Profile/PRL etc. All worked (albeit slowly).
But still no 4G and no 3G when in normally 3G only areas.
Then I tried running H/K RUU back to back twice. Still stuck.
I may try RUU one more time, then try reactivate/profile/prl again in the 4G area.
Is there any need to change hboot? I have left what the H/K RUU put on there sometimes and other times used the one posted here that removes the red unlocked text etc.

The only thing I've messed with on hboot was the mask to remove the tampered text and red text on boot screen.
Yeah I was the one that sent you the message about losing mine until I flashed stock phone apk. But you said it didn't work for you though. But after I did a clean install of the Rom I haven't had any more issues luckily. Hopefully your replacement will work a lot better for you. Maybe just got a bad phone hopefully.
Yes I'm back on H/K firmware again. I went back to old firmware when I flashed viper a few days ago.
Sent from my 831C using XDA Premium 4 mobile app

dazednconfused said:
The only thing I've messed with on hboot was the mask to remove the tampered text and red text on boot screen.
Yeah I was the one that sent you the message about losing mine until I flashed stock phone apk. But you said it didn't work for you though. But after I did a clean install of the Rom I haven't had any more issues luckily. Hopefully your replacement will work a lot better for you. Maybe just got a bad phone hopefully.
Yes I'm back on H/K firmware again. I went back to old firmware when I flashed viper a few days ago.
Sent from my 831C using XDA Premium 4 mobile app
Click to expand...
Click to collapse
Maybe I need a round of Viper to fix it

Weird issue with no data while making phone calls

Hell of a story, I apologize in advance for the length, but maybe it'll be intriguing to some of you. Pure Nexus rom as of i think april 23rd?
I have a Nexus 6 that I bought 2 years ago in April on Verizon (purchased from verizon). My contract ran out April 27th, went to AT&T with my girlfriend because I was going to get on her plan to save money on our phone bills. Ported over the number to my N6 fine. But I noticed I only got an H+ symbol, no LTE. I asked the guy if that was normal, he said yes. I got data and could make calls so I figured it was fine. Did some speed tests, 2 mb/down at best. My GF was getting 15-20 in the same spot on her Galaxy S7.
Long part of this story short, the tech they put me on the phone with said it was due to it being a Verizon variant and was not capable of full LTE speeds on AT&T. I went to the Verizon store and asked if they could put me back under Verizon after explaining the problem. He said sure, and then worked up pricing to have my GF switch to Verizon with me instead, and to get a Pixel XL.
So far so good, they had to do a temporary number for me because there's issues porting a number twice in a 24 hour span, but they cleared it up, got my real number ported, happy camper, good speeds. Except this one issue.
Now when I'm on the phone (actual phone call), my data drops. The LTE signal actually disappears, and nothing displays except signal bars. As soon as the phone call is over, it comes back. I never had the problem before this whole back and forth mess. I can't seem to figure out any options to make it not do this. I was thinking about reflashing my rom in case that would help, maybe something got messed up in the switch back and forth to GSM and then back to CDMA?

Morpherios said:
Hell of a story, I apologize in advance for the length, but maybe it'll be intriguing to some of you. Pure Nexus rom as of i think april 23rd?
I have a Nexus 6 that I bought 2 years ago in April on Verizon (purchased from verizon). My contract ran out April 27th, went to AT&T with my girlfriend because I was going to get on her plan to save money on our phone bills. Ported over the number to my N6 fine. But I noticed I only got an H+ symbol, no LTE. I asked the guy if that was normal, he said yes. I got data and could make calls so I figured it was fine. Did some speed tests, 2 mb/down at best. My GF was getting 15-20 in the same spot on her Galaxy S7.
Long part of this story short, the tech they put me on the phone with said it was due to it being a Verizon variant and was not capable of full LTE speeds on AT&T. I went to the Verizon store and asked if they could put me back under Verizon after explaining the problem. He said sure, and then worked up pricing to have my GF switch to Verizon with me instead, and to get a Pixel XL.
So far so good, they had to do a temporary number for me because there's issues porting a number twice in a 24 hour span, but they cleared it up, got my real number ported, happy camper, good speeds. Except this one issue.
Now when I'm on the phone (actual phone call), my data drops. The LTE signal actually disappears, and nothing displays except signal bars. As soon as the phone call is over, it comes back. I never had the problem before this whole back and forth mess. I can't seem to figure out any options to make it not do this. I was thinking about reflashing my rom in case that would help, maybe something got messed up in the switch back and forth to GSM and then back to CDMA?
Click to expand...
Click to collapse
Try to unlock bootloader, install TWRP, root the stock rom, then install lastest bootloader (v72.03) and latest radio (v05.45):
https://forum.xda-developers.com/ne...-nexus-6-recovery-flashable-fastboot-t3066052
Use WUG Fresh NRT tool to accomplish above when hooked to Windows PC via microUSB in 2.0 USB port with correct Windows drivers installed (OK for ADB): https://forum.xda-developers.com/showthread.php?t=1766475

HueyT said:
Try to unlock bootloader, install TWRP, root the stock rom, then install lastest bootloader (v72.03) and latest radio (v05.45):
https://forum.xda-developers.com/ne...-nexus-6-recovery-flashable-fastboot-t3066052
Use WUG Fresh NRT tool to accomplish above when hooked to Windows PC via microUSB in 2.0 USB port with correct Windows drivers installed (OK for ADB): https://forum.xda-developers.com/showthread.php?t=1766475
Click to expand...
Click to collapse
I'm already unlocked, rooted, TWRP'd and using the PureNexus that came out end of april (I haven't flashed the one in may yet). I believe I'm also currently using the latest radio and latest bootloader.
Edit - I actually was not on the most recent radio, but I did flash that, no change.

The volte provisioned flag turned on in the testing menu? I have a setting for enhanced 4g lte mode in my settings, wireless networks/more/cellular networks settings. Did they remove the advanced calling from your account? Just throwing some things out there.

Morpherios said:
Hell of a story, I apologize in advance for the length, but maybe it'll be intriguing to some of you. Pure Nexus rom as of i think april 23rd?
I have a Nexus 6 that I bought 2 years ago in April on Verizon (purchased from verizon). My contract ran out April 27th, went to AT&T with my girlfriend because I was going to get on her plan to save money on our phone bills. Ported over the number to my N6 fine. But I noticed I only got an H+ symbol, no LTE. I asked the guy if that was normal, he said yes. I got data and could make calls so I figured it was fine. Did some speed tests, 2 mb/down at best. My GF was getting 15-20 in the same spot on her Galaxy S7.
Long part of this story short, the tech they put me on the phone with said it was due to it being a Verizon variant and was not capable of full LTE speeds on AT&T. I went to the Verizon store and asked if they could put me back under Verizon after explaining the problem. He said sure, and then worked up pricing to have my GF switch to Verizon with me instead, and to get a Pixel XL.
So far so good, they had to do a temporary number for me because there's issues porting a number twice in a 24 hour span, but they cleared it up, got my real number ported, happy camper, good speeds. Except this one issue.
Now when I'm on the phone (actual phone call), my data drops. The LTE signal actually disappears, and nothing displays except signal bars. As soon as the phone call is over, it comes back. I never had the problem before this whole back and forth mess. I can't seem to figure out any options to make it not do this. I was thinking about reflashing my rom in case that would help, maybe something got messed up in the switch back and forth to GSM and then back to CDMA?
Click to expand...
Click to collapse
The tech may not be wrong as Verizon uses band 13 as their main LTE band and ATT uses band 17
http://www.phonearena.com/news/Chea...on-T-Mobile-and-Sprint-use-in-the-USA_id77933

Morpherios said:
Hell of a story, I apologize in advance for the length, but maybe it'll be intriguing to some of you. Pure Nexus rom as of i think april 23rd?
I have a Nexus 6 that I bought 2 years ago in April on Verizon (purchased from verizon). My contract ran out April 27th, went to AT&T with my girlfriend because I was going to get on her plan to save money on our phone bills. Ported over the number to my N6 fine. But I noticed I only got an H+ symbol, no LTE. I asked the guy if that was normal, he said yes. I got data and could make calls so I figured it was fine. Did some speed tests, 2 mb/down at best. My GF was getting 15-20 in the same spot on her Galaxy S7.
Long part of this story short, the tech they put me on the phone with said it was due to it being a Verizon variant and was not capable of full LTE speeds on AT&T. I went to the Verizon store and asked if they could put me back under Verizon after explaining the problem. He said sure, and then worked up pricing to have my GF switch to Verizon with me instead, and to get a Pixel XL.
So far so good, they had to do a temporary number for me because there's issues porting a number twice in a 24 hour span, but they cleared it up, got my real number ported, happy camper, good speeds. Except this one issue.
Now when I'm on the phone (actual phone call), my data drops. The LTE signal actually disappears, and nothing displays except signal bars. As soon as the phone call is over, it comes back. I never had the problem before this whole back and forth mess. I can't seem to figure out any options to make it not do this. I was thinking about reflashing my rom in case that would help, maybe something got messed up in the switch back and forth to GSM and then back to CDMA?
Click to expand...
Click to collapse
In others countries we don't get the same bands management, then I can't say anything about LTE.
But I'm on PureNexus 7.1.1 and I get the same "issue" about network droppin when calling. When the call starts, my phone turns into don't disturb-mode and recover the network only when the phone call ends.. It doesn't really cut my network connection, but it looks like. It may be rom settings.
However I don't care as long as everything works good, it's just an icon. (how a phone call can be done while network is shutted off ^^)
When I was on the stock ROM, this autumn, 7.1 version of Android did the same thing, loosing data connection while being still connected to the network (but at anytime not just phonecalls). Finding it back some minutes later. That was fixed with 7.1.1. Stock.
Hope that might help you (looks not ) if it's the same problem. May be give an eye to the Rom settings..
Have you tried if your device do the same thing with an another Rom ? (stock for example)

Larzzzz82 said:
The volte provisioned flag turned on in the testing menu? I have a setting for enhanced 4g lte mode in my settings, wireless networks/more/cellular networks settings. Did they remove the advanced calling from your account? Just throwing some things out there.
Click to expand...
Click to collapse
I knew something looked like it was missing. I don't have any enhanced 4g LTE settings in that section. Normally there's a tick box to turn it on there. It's missing. Is that due to them not having it turned on in my account?
Also for everyone else, this problem only started when I tried the whole at&t switch. I was on this rom when I switched and it worked fine before then. I didn't factory reset since then though, wondering if I need to try that.

zelendel said:
The tech may not be wrong as Verizon uses band 13 as their main LTE band and ATT uses band 17
http://www.phonearena.com/news/Chea...on-T-Mobile-and-Sprint-use-in-the-USA_id77933
Click to expand...
Click to collapse
The tech is definitely wrong; since it's a Nexus 6 (presumably XT1103) it has all the possible LTE bands used in the US. There should not have been any issue when switching. I had something similar happen to me, when I just switched to verizon and did the "reset network settings" button, it screwed up my phone so I couldn't use LTE period, I had to reflash the modem in order to fix it. I know you already said you reflashed the modem, but I'm not sure what to suggest. There is absolutely nothing physically wrong or incapable about your phone, just some config got screwed up somewhere along the way. I'd just try to flash as many things as you're comfortable with without losing your userdata. Like modem, bootloader, etc. until your data comes back. If nothing else, press the network settings reset button and flash the latest modem. Make sure your twrp is up to date as well.

BlockOfDynamite said:
The tech is definitely wrong; since it's a Nexus 6 (presumably XT1103) it has all the possible LTE bands used in the US. There should not have been any issue when switching. I had something similar happen to me, when I just switched to verizon and did the "reset network settings" button, it screwed up my phone so I couldn't use LTE period, I had to reflash the modem in order to fix it. I know you already said you reflashed the modem, but I'm not sure what to suggest. There is absolutely nothing physically wrong or incapable about your phone, just some config got screwed up somewhere along the way. I'd just try to flash as many things as you're comfortable with without losing your userdata. Like modem, bootloader, etc. until your data comes back. If nothing else, press the network settings reset button and flash the latest modem. Make sure your twrp is up to date as well.
Click to expand...
Click to collapse
I think i'm going to reflash my rom today. I did the modem, twrp is up to date, bootloader is fine. I did the reset network settings (I was sure that was going to fix it, no dice). So I'm going to reflash the rom today and see if that fixes it. After that I have no idea what is left to try other than reverting to stock, which I'd like to avoid.

Yes, it is a feature that needs to be added to your account. Go online and check their website or go into the hidden menu and activate it. If it sticks, it's on your account.
I tried the wifi and video calling flags and they didn't stick. Go figure... C'MON big red...

Larzzzz82 said:
Yes, it is a feature that needs to be added to your account. Go online and check their website or go into the hidden menu and activate it. If it sticks, it's on your account.
I tried the wifi and video calling flags and they didn't stick. Go figure... C'MON big red...
Click to expand...
Click to collapse
How do you enter the hidden menu on the n6? I thought I found it but it wasn't working.

.#.#4636#.#. select the phone info tab. In there, there will be either a drop down menu or buttons to tick and they'll change color

Larzzzz82 said:
.#.#4636#.#. select the phone info tab. In there, there will be either a drop down menu or buttons to tick and they'll change color
Click to expand...
Click to collapse
I got in, VoLTE was not ticked. I ticked it. I got the setting for it then in settings. But making a phone call gave me an error. I rebooted, and it's not ticked now. So does that mean I need to call Verizon to have them flag my account?

You need to add it in your account then. Easy enough to do online. You want to, "manage features."

Larzzzz82 said:
You need to add it in your account then. Easy enough to do online. You want to, "manage features."
Click to expand...
Click to collapse
That did the trick. All fixed. Thank you! That was driving me nuts. I never considered the idea that the setting would be turned off . But since I did leave and come back...
Thanks again!

Glad you're all set. ?