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Phone shows full service but I don't receive calls

Sometimes people call me and get a message saying my phone is off or out of service. But when I look at it, it often shows 4 bars of service..
When I call someone, the problem disappears temporarily, and I start receiving calls again (and I receive all the SMS's I was supposed to get at once), only to appear again later for no reason (a soft reset also solves it). It's not related to location, it also happens when I spend the day at home (where I get a strong signal).
I don't think it's a operator problem either, since my operator is known for it's good services, and other people who use "normal" phones never had such a problem.
I tried 3 different ROMs (dutty's hybrid, Hyperdragon and AthineOS) and 3 different radios (dutty's radio (1.65 something), hyperdragon's (1.70 something), and eMo radio). Right now I'm using AthineOS with hyperdragon III's radio, and almost no programs installed..
This problem happens both in 3G and EDGE mode.
Anything I can do about it?

Send it in for repair?
Seems you tried all you could...

Don't think I can send it for repair, since it's an AT&T Tilt and I'm not even in the US..
Guess I'm outta luck then
Anyone else have any ideas?

have you tried the sim in another handset, sounds like a network problem to me.

3G Network
Are you using 3G Network?
Sometime I use 3G band and even It show good signal I loose phone calls.
I changed to GSM and no phone calls loose.
This happens in São Paulo/Brazil but...
EDIT: Sorry. Now I saw that you reported this problem also using GSM band.
Thanks.

I am not sure if you're using your US SIM card in a foreign country?
Maybe you just forgot to enable INTERNATIONAL ROAMING before you left ... ?

I'm having the same problem
I seem to have started with the same problem about a week ago. A couple people complained that they called me but it rang twice and went to voicemail - My phone never rang. However, after I made a call (or apparently did something to "wakeup" the phone), I would get the voicemail notification (2 hours later).
I tried reseating the SIM card, but then it went to "SIM Card Missing". I did a hard reset, but that didn't help. I took it back to AT&T and they replaced the SIM Card. That seemed to work again, and certainly would have been a convenient fix (bad SIM card - too easy). So I've just spent all weekend reloading all the apps, but now it's happening again!!
The symptoms are; After I reboot the device, I can receive one or two calls, then it doesn't ring anymore (the caller hears 2 rings then it goes to voicemail). If I cycle the Phone radio button in the Comm Manager, or cycle power, it comes back to life for 1 call, then craps out again.
I'm just using the standard AT&T ROM (without the Bloatware after this past reset) and the standard/default radio version 1.27.12.11
The only thing that I have noticed that seems different lately is that the "Comm Manager" task is always running when I look at the running programs (which I don't think it used to) I had also recently installed Garmin XT.
The device is of course 1 yr + 2 weeks (so I assume just out of warranty)
Any help would be greatly appreciated!!!

Hmmm,
what I would try, is, to just make a hard reset, load only my contacts to the phone and run it for a while to monitor its "Incalling" behavior. If everything seems to be fine, I would go ahead and start installing an application, then monitor my device again for a while, if everything is fine I will go ahead install the next application ... and so on. That is just to make sure that no 3rd party application causes this problems.
BTW:
I don't think that GARMIN causes this problem. I used to run Garmin on my HTC too (v5.0) until I came accross SYGIC McGuider (which works much better and card scrolling is much smoother than Garmin).
Well,
to come back to the point: if you get the same problems without loading any 3rd party application on your device, then I would recommend trying another ROM (best advice: go with the HTC stock ROM). If it also happens with the other ROM then it might be hardware related and difficult to fix.

Thanks - I knew that's what I should do, I just didn't want to do it after having spent all weekend reloading and configuring it. I thought I had read somewhere about Garmin having to have the phone radio on to work, so I was hoping there was a setting somewhere that I was missing that was powering the radio down. But..... I suppose it's time to go back to common sense and just do the reset
So far it seems to be working now. I'll give it a few days with just the basics and then start reloading one at a time.
Thanks for the quick response!

Spoke too soon
looks like I spoke too soon, it's doing it again - seems like it was fine for about 3 hours, but now .....
guess it's time to try my luck with AT&T - time to see how good their customer service is

bbaydiver said:
looks like I spoke too soon, it's doing it again - seems like it was fine for about 3 hours, but now .....
guess it's time to try my luck with AT&T - time to see how good their customer service is
Click to expand...
Click to collapse
Well, I'm experiencig totally same stuff here. I don't know whats really going on. I've NEVER before had such or even simialr problem.
Ive installed stock HTC ROM. And its going again.
One question. Are you using Opera Mini maybe?

kristoff_sz said:
Well, I'm experiencig totally same stuff here. I don't know whats really going on. I've NEVER before had such or even simialr problem.
Ive installed stock HTC ROM. And its going again.
One question. Are you using Opera Mini maybe?
Click to expand...
Click to collapse
no, I was just using the default browser.
I've got nothing installed on it at this point so I'm guessing it's hardware related.
Over the last couple months I had been experiencing some strange battery drainage (not related to the GPS issues). I don't know if that was a symptom or not. It just seems like the radio is going to sleep somehow - it wakes up for a little while if I sync my email, cycle the radio via comm manager, or cycle the power.
Anyone know if there is a setting somewhere that controls that? (sure would be nice if it were that simple)
The AT&T store was basically useless, all they did was give me the phone number for the warranty department (but since I'm 2 weeks past warranty, he doesn't think they'll help me), and of course offer to upgrade me to the Fuze for $375 - no thanks!

I've had the same issue (I think). I too think that it seems to happen when I have a 3G data connection active and moving back to GPRS (non 3G) seems to make it better....
I'm on a standard UK ROM and using BTMobile as a provider.
I was driving down the motorway the other day and overtook a friend. He rang me and went straight to voicemail. I then got a text to say that I had a voicemail and rang him back.
I was running TomTom Traffic at the time so would have had a data session enabled....
I think its something to do with the data session sometimes not letting a call through but can't put my finger on anything and certainly can't find an option to change any settings...
Also, even at home, I'm constantly picking up my phone to see that it "has no signal" and the exclamation mark is displayed - so calls aren't coming through - but it then connects and shows a three-bar strength signal. Don't understand why it keeps dropping out, but I get a 3G connection at the front of my house and an ordinary G connection at the back and I think that it sometimes to stay connected to the 3G connection for data even when the phone signal is very poor and it would be better dropping that and connecting at "old" GPRS speed...
Same on the train on the west coast main line out of London. I think having the 3G turned on causes the phone signal to drop out completely more than when 3G is turned off, as the phone tries to hang on to the signal of a 3G cell and doesn't successfully switch over to the next "non 3G" cell whilst in a call.

have you tried a new radio such as NIKI's?

well, AT&T warranty was even less than useless. Home phone, Internet, and Wireless all through AT&T and the best they can do is "see if they could get me a deal on a new phone" or refer me to HTC technical support. Nice customer service AT&T!!!
HTC technical support was actually trying to be helpful, once she found out I already did a hard reset, she referred me to their warranty group. They looked up the S/N and it's still under their warranty (I guess theirs is 15 months after manufacture date). Now the only problem is I have to send it in to them to see if it's covered under warranty, and of course be willing to go without my phone for 2 weeks (and pay them a yet to be determined amount if they decide it's not under warranty).
I'd like to try a different radio, but looks like there's too much for me to read up on - I need to get the device fixed, I've already lost too much time with it being messed up and me screwing with it.

Update
so this morning I was ready to throw in the towel and send the device back to HTC. At least they were willing to help me out, unlike AT&T.
I get to work, and of course the phone seems to be working (which isn't unusual, it works for a little while then craps out). Come lunch time, it's still working (now this is unusual, it must be a fluke, I'll give a couple more hours before I package it up). 4:00 and it's still working! Now I'm starting to wonder if it's got to do with the cell towers near my house (and the AT&T store since it did it for them too).
I email my buddy who lives about 1/2 mile away and also has a Tilt just to see if he's had any similar problems. He calls me back laughing. There's 5 People in his office with the exact same problem (and not all Tilts either).
So to make a short story long....... it appears to be a problem with AT&T, NOT the device (but Thank You very much AT&T for the incredible customer care you demonstrated and for trying to screw me into buying new devices for outrageous prices)
So at this point, I'm not sure if it's that AT&T has fixed the issue across the board, or if it was the "Resync the routing" that the online chat person tried last night that finally propagated across the network (I assume so that AT&T can find my phone in order to route the calls to me).
I guess we'll see if it does the same thing when I get back closer to home tonight, but I'm relieved that it appears to be fixed.
Thanks everyone for the suggestions! Now I have a little more time to read about how I can screw up my phone on my own schedule - all the practice of resetting it and reinstalling everything, and seeing how much faster it is has inspired me

Hi bbaydiver
Did Att fix your problem? I had same issue with my tilt 8925. I tried all the orginal Att rom "same problem". After couple minute, I can't receive and make call. thanks

kwong1998 said:
Hi bbaydiver
Did Att fix your problem? I had same issue with my tilt 8925. I tried all the orginal Att rom "same problem". After couple minute, I can't receive and make call. thanks
Click to expand...
Click to collapse
Have you tied asking AT$T for a new sim card ? They do wear out you know.

denco7 said:
Have you tied asking AT$T for a new sim card ? They do wear out you know.
Click to expand...
Click to collapse
I didn't tried asking AT&T for a new sim card. but I will call them to change the sim card. Does anybody know how to disable the 3G function?

Just a "me too..."
Hello everyone. I just wanted to report that I'm having the same issues...they started about a week or so ago.
I've had my AT&T Tilt for about 8 months now (it's a warranty replacement for my first tilt, bought in July...so of course, I'm out of warranty). I recently had problems receiving calls, and then I started being unable to make calls, even though my phone shows a decent signal...anywhere from 4 bars to 2 bars. When dialing, it'll say "Dialing..." for a few seconds...and then it clicks off. A soft reset will fix things temporarily, but that's it.
I'm running the stock AT&T ROM (I'll check the version number if someone thinks it'll help), and I've tried doing a hard reset AND replacing the SIM card. Same effect.
Someone please let me know if they resolved this problem. AT&T offered me an HTC Fuze...but I'm extremely wary of other phones by this manufacturer. I'm very, VERY tired of phones crapping out on me after having just spend a couple of hundred bucks on them. At this point, I'm just looking for something reliable. If someone else here has had problems with the Fuze, please let me know...not to start any fights around here, but I'm actually thinking about going with the iPhone.
Thanks.

anyone on ATT having data problems?

I've tried various different ROMs but it seems since installing the latest releases of Froyo I can't seem to get any kind of consistent data speeds any more.
One minute I'm getting 2mb the next I'm getting 200 or no connection at all. I've tried going back to other roms even 2.1 (cyanogen) but still have the issue. I don't know if it's network related or something is messed up on my phone.
I'm going to go back to completely stock everything (including radio) and see if I still have problems but just wanted to post here to see if anyone else has seen issues.
Thanks

Before you resort to messing with your device you might want to call AT&T and ask them whats up with you area. I found that 16 out of 20 towers in my arean were down and that was the problem. I continued to question them about what they were doing about it and found that the answer was nothing. The towers are Verizon owned and they cant do anything about it. They gave me a $280.19 credit on my account which almost pays next months bill.
I saved myself from the trouble and got next months bill paid.
Now, thats killing 2 birds with 1 stone

Yeah I've been having absolutely terrible data all day. I got on here looking for a thread about this. I'm also on AT&T. It has pretty much stopped working completely for the last two hours.
I read there was a nationwide outtage and people thought it was T-Mo but they claimed it was HTC.
Not real sure what the issue is but it's getting annoying.

vwauditech said:
Be you might want to call AT&T
Click to expand...
Click to collapse
ya... I ended up calling them... they said not having my IMEI # on my account would cause strange things eventually when the system does it's scans or whatever... they added the # to my account and data seems fine now... well, fine within ATT standards lol

I have been having big issues with the data connection since froyo came out.
Data will get "stuck" on sending and no program (browser, sync, market, ...) will be able to send or receive data ... they all time out or give a network connection error.

The did do an IMEI scan. They shut off my data because I had an iPhone plan.
I just hulked out at the ATT store for half an hour.
I'm still using a GSM carrier because I want to switch phones whenever I please.
They put me on the smartphone data plan. What happens if I want to grab an iPhone 4 and switch back and fourth?
So Angry. Don't Tread on Me!

Well I feel like an asshole. SwitchPro Widget disabled my data connection.
**** it I'm getting an iPhone.

cstcyr said:
Well I feel like an asshole. SwitchPro Widget disabled my data connection.
**** it I'm getting an iPhone.
Click to expand...
Click to collapse
f**kin troll...
anyways i always seem to have some issue with AT&T data. mostly 3G. i could be doing fine at one point and then a few minutes later, i cant load pages or do anything data wise and then im forced to turn the 3G off or connect to wifi if its around. $30/month for this crap?

xXJay_RXx said:
f**kin troll...
anyways i always seem to have some issue with AT&T data. mostly 3G. i could be doing fine at one point and then a few minutes later, i cant load pages or do anything data wise and then im forced to turn the 3G off or connect to wifi if its around. $30/month for this crap?
Click to expand...
Click to collapse
If you look around, there's a broad array of AT&T data problems the last 2-3 days... So something is going on, and I highly doubt it has anything to do with any hardware, software, etc, except for specific examples of course.
Perhaps all the ipony 4 lusers downloading new fart apps?

Zenoran said:
ya... I ended up calling them... they said not having my IMEI # on my account would cause strange things eventually when the system does it's scans or whatever... they added the # to my account and data seems fine now... well, fine within ATT standards lol
Click to expand...
Click to collapse
Crock'o's###e (it's an Irish crock, so there's an "e" at the end). All they need is the SIM card #, or ICCID, to authenticate the user. The IMEI is irrelevant and if the network needs it, it's auto-pulled from the switch (GSM phones always broadcasts the IMEI when they connect, it's how they nab people for the data plans). What the rep is doing with the IMEI is just updating the billing system, not anything network related (again, since the network already has your info). Now...what happens is that whenever you change the SIM or IMEI in the billing system, it orders the network to push out an OTA SIM update. There is,however, an option to simply send the OTA without fudging with the numbers.

Oddly enough, I ran the "mark the spot" application and at the end, it asked me if I wanted to run a diagnostic test. I selected yes and then about 10 minutes later it sent me a free text message acknowledging that they received my issue.
Now i'm testing my speeds and everything seems back to normal!
I'm getting consistent 1.5 up and 1.5 down whereas I was getting < 100 each way a couple of hours ago.
I'm in MD btw.

ATnTdude said:
Crock'o's###e (it's an Irish crock, so there's an "e" at the end). All they need is the SIM card #, or ICCID, to authenticate the user. The IMEI is irrelevant and if the network needs it, it's auto-pulled from the switch (GSM phones always broadcasts the IMEI when they connect, it's how they nab people for the data plans). What the rep is doing with the IMEI is just updating the billing system, not anything network related (again, since the network already has your info). Now...what happens is that whenever you change the SIM or IMEI in the billing system, it orders the network to push out an OTA SIM update. There is,however, an option to simply send the OTA without fudging with the numbers.
Click to expand...
Click to collapse
Ya I've always been thinking the same thing but was rather desperate to get better results after a week of poor performance and, surprisingly, after updating the IMEI # I was getting full speeds again. It could be purely coincidental but I guess there's absolutely nothing wrong with having the correct IMEI on file.
ATT has been sucking lately. I don't know if it's the froyo radio or what but I have been experience a lot of lag when the phone has been off for a bit then trying to initiate a data connection. ATT's data network can be absolutely awesome or absolutely SUCK, depending on the time of day and network utilization. I think I'm ready to jump ship to sprint (apparently they've really cleaned up their network problems in central ohio) or verizon but the Nexus has me stuck to ATT until something significantly better comes a long to switch into.
Too bad all newer phones on other networks all have those craptastic sudo layers like sense and blur... that crap and the "personal touch" of the carrier to android releases always ends up in it being a small eternity before you actually get the latest android. This is why the Nexus stays in my hand... I sure hope someone else releases a vanilla android phone that's support as widely as the Nexus.

khaytsus said:
If you look around, there's a broad array of AT&T data problems the last 2-3 days... So something is going on, and I highly doubt it has anything to do with any hardware, software, etc, except for specific examples of course.
Perhaps all the ipony 4 lusers downloading new fart apps?
Click to expand...
Click to collapse
lol +1
but yea i hope it has nothing to do with hardware. i was just fine with my nexus one using 3G up until a few days ago. i hope this is AT&T's way of fixing their 3G. this better get cleared up soon cuz im sooo ready to jump onto Verizon's Droid X or jump on T-Mobile's Galaxy S (while still being able to use my sim card on my nexus). i always had issues with AT&T and i just tried to ignore it while i was on the iPhone 3Gs/Nexus One but now this is ridiculous. i have had a few nights were i would get no data service at all. i was scared as sh*t thinking i messed something up while i was flashing (i happened to have flashed something the night i had no data) but when i woke up the next morning, i had data again. im almost fed up with AT&T. im paying $175 a month for two lines and this is the crap i get?

iboj007 said:
Oddly enough, I ran the "mark the spot" application and at the end, it asked me if I wanted to run a diagnostic test. I selected yes and then about 10 minutes later it sent me a free text message acknowledging that they received my issue.
Now i'm testing my speeds and everything seems back to normal!
I'm getting consistent 1.5 up and 1.5 down whereas I was getting < 100 each way a couple of hours ago.
I'm in MD btw.
Click to expand...
Click to collapse
what does that do? does it help AT&T find the spotty service areas?

[Q] Losing signal completely

Hello. Have any of you experienced total signal loss? (The triangle in the status bar is hollow/empty). This happens seemingly on random and it "fixes" itself in a minute or so, and I can make calls and have mobile data.
Thanks

I have been also facing this issue lately with different roms. In my case, I loose the network and have to reboot multiple times to get the network up. Sometimes because of this, my phone shuts off. Not sure what is happening.

I flashed Dirty Unicorns a few days ago, and signal would drop every few seconds. Turns out the APN was set for MetroPCS, changed it to T-Mobile IPv6 and it fixed it.

I found my issue is related to my network operator. I am not sure why this happening, everytime I reboot or shut it down, I loose the signal and it takes many attempt's to get a connection. It could either be lollipop bug, network compatibility or issue with the device. Will find it out on Monday.

same here
I've been dealing with this same thing for two days. I have Sprint.
I was on Chroma and traveling. I noticed I lost data during my drive. Once I got to the location, my wife had full 3g and I had nothing. I thought it must have been from dirty flashing an update. I wiped and flashed again chroma with the sprint.zip for apn. Still didn't work. I occasionally would connect to 3g but would lose it randomly for long periods of time. I ended up walking around with my verizon hotspot to have data.
I just flashed stock and I've been waiting 10 minutes for it to try to activate. I'm hoping it will work this time. What a mess this phone has become.

It seems like it's a lollipop bug. I tested my sim on a different phone and multiple times, I rebooted without any issues. I wonder if Google messed with lollipop or is it Motorola.

matejilic said:
Hello. Have any of you experienced total signal loss? (The triangle in the status bar is hollow/empty). This happens seemingly on random and it "fixes" itself in a minute or so, and I can make calls and have mobile data.
Thanks
Click to expand...
Click to collapse
Yeah, even if there the signal bar gets empty, it doesn't interrupt in incoming or outgoing calls Even mobile data works perfectly fine. For me it comes to normal after 5-6 seconds

For me it does interrupt calls and I don't have mobile data. I really hope its a lollipop issue. I guess they can add that as number 1500 to the bug list...

I am currently experiencing that exact same problem no matter which rom I am using. It is really becoming a PITA. Spent 950$ for this POS phone.

Not a lollipop issue.
matejilic said:
For me it does interrupt calls and I don't have mobile data. I really hope its a lollipop issue. I guess they can add that as number 1500 to the bug list...
Click to expand...
Click to collapse
Phillis said:
I am currently experiencing that exact same problem no matter which rom I am using. It is really becoming a PITA. Spent 950$ for this POS phone.
Click to expand...
Click to collapse
Few things to explain if you really want to find out what is wrong. Who is your carrier? Or you running stock or modified ROM? Are you rooted? Giving information like this may help you get to the problem. If it were a lollipop issue, don't you think everyone or at least a lot more people would be experiencing the same thing and posting about it???? Come on guys, be a little more precise when posting issues with said device.

vvveith said:
Few things to explain if you really want to find out what is wrong. Who is your carrier? Or you running stock or modified ROM? Are you rooted? Giving information like this may help you get to the problem. If it were a lollipop issue, don't you think everyone or at least a lot more people would be experiencing the same thing and posting about it???? Come on guys, be a little more precise when posting issues with said device.
Click to expand...
Click to collapse
Hi,
WIth Fido in Canada. As some others have posted, if I choose LTE (recommended) in Preferred Network Type, I lost my connection every 15 minutes for 1 minute. If I set to 3g, all is fine. I tried the sim in my nexus 5, doesn't happen.
Tried CM and some other AOSP customs roms, always have the problem. Also tried different radios., same problem. I will definitely retry with the factory image soon, but I have strong doubts it's the OS. I contacted Google, they are sending me a replacement phone.
It's insulting to shell out 950$CAD for a new phone, have it bug on you, then have them ship you a freaking refurbished device. I have a 64GB midnight blue from the first Canadian run (I was one of the lucky bastards, or unlucky!). Then they wonder why people buy iPhones...yes they are very limited, but at least the damn thing works.
Almost every single Nexus I have purchased has given me problems (4-5-6-7-7(2013)). The only one that has yet to show me problem is the 9, but that was a gift for my mother, so she won't even notice if things go bad. I am definitely done buying a Nexus device when it is released...lol

Forcing 3G
Hey Guys,
I tried switching from Euphoria OS to Omnirom but no dice.
I deleted all unused APNs and forced 3G connection, rebooted and it seems to be stable for now.
Hope there's a better fix soon.

Got another nexus 6 from Google...same problem. Every 10 minutes LTE drops. POS....

No problems here.. Sounds like a network issue not a hardware problem.

Nexus 6 LTE connecting issues... strange!

My rooted Nexus 6 and my sons stock Nexus 6 are having a lot of trouble connecting to LTE on Tmobile. I have to go to APNs, reset to default and reboot every hour or so. I did no changes to my phone.
Apparently, this is happening on other networks too.
Can anyone shed light on this? Some back door google update.
tMobile says no changes on their end. Also, other carriers are having this issue, ONLY Nexus 6.
PS - apparently , this has happened before too
http://www.idigitaltimes.com/nexus-6-problems-how-fix-mobile-data-connection-failure-issue-440151

flash a different radio/modem.

Same here. Just spoke to T-MOBILE and rep said it is an issue with a lot Nexus 6 users. They kicked me off the network and it work for a bit but I'm still losing data. She said their tech department is working with Google for a fix.
Fyi...Flash 3 other radio's and it doesn't make a difference.
Edit: change all to a lot

wolfeyes30 said:
Same here. Just spoke to T-MOBILE and rep said it is an issue with all Nexus 6 users. They kicked me off the network and it work for a bit but I'm still losing data. She said their tech department is working with Google for a fix.
Fyi...Flash 3 other radio's and it doesn't make a difference.
Click to expand...
Click to collapse
I got the same answer.
I did flash the 5.32 and 5.34 modems. No dice.
Then I tried Developer preview 5.39. It's been working for 15 minutes, which is a long time since the issue cropped up.
What a pain!

Not sure if my issue is the same, but for the last couple days Textra fails to send a text unless I reboot. Even a reply to a just received text fails. I have tried a couple different radios but neither has helped. I am also on a T-Mobile Nexus 6 stock rooted with the August 6.0.1 security update.

JimSmith94 said:
Not sure if my issue is the same, but for the last couple days Textra fails to send a text unless I reboot. Even a reply to a just received text fails. I have tried a couple different radios but neither has helped. I am also on a T-Mobile Nexus 6 stock rooted with the August 6.0.1 security update.
Click to expand...
Click to collapse
That is probably the same issue. I can receive texts, but can't send without a reboot.
So far.. the 5.39 developer modem has kept connection for an hour. Which is good considering how intermittent it was.
What really blows is that my phone and service was perfect until this event.
Even in the mountains of the Philippines last year, my phone worked perfect.

You may try dp5 my WiFi and Mobil got a lot better, but I'm not on t mobil. Flashing only the radio is maybe not enough, if you are on stock anyway you have nothing to loose

Check out Reddit for the growing thread on this issue. Happening with Nexus 6 users on different carriers around the world. Some GPS connected apps like Pokemon Go & Lyft will bork LTE connectivity. Probably a Google play services issue. Will be using my OnePlus one today just in case.

tmicrd68 said:
Check out Reddit for the growing thread on this issue. Happening with Nexus 6 users on different carriers around the world. Some GPS connected apps like Pokemon Go & Lyft will bork LTE connectivity. Probably a Google play services issue. Will be using my OnePlus one today just in case.
Click to expand...
Click to collapse
Interesting.. I hit the speedtest app right after a reboot to check, and it immediately borked my connection several times in a row. I like your theory..

wolfeyes30 said:
Same here. Just spoke to T-MOBILE and rep said it is an issue with all Nexus 6 users. They kicked me off the network and it work for a bit but I'm still losing data. She said their tech department is working with Google for a fix.
Fyi...Flash 3 other radio's and it doesn't make a difference.
Click to expand...
Click to collapse
its NOT an issue with all n6 users on tmobile. i have a nexus 6, since nov 2014, and have never ever had that issue on tmobile. been on tmobile since the early 2000's..

Jeff_in_LA said:
My rooted Nexus 6 and my sons stock Nexus 6 are having a lot of trouble connecting to LTE on Tmobile. I have to go to APNs, reset to default and reboot every hour or so. I did no changes to my phone.
Apparently, this is happening on other networks too.
Can anyone shed light on this? Some back door google update.
tMobile says no changes on their end. Also, other carriers are having this issue, ONLY Nexus 6.
PS - apparently , this has happened before too
http://www.idigitaltimes.com/nexus-6-problems-how-fix-mobile-data-connection-failure-issue-440151
Click to expand...
Click to collapse
wolfeyes30 said:
Same here. Just spoke to T-MOBILE and rep said it is an issue with all Nexus 6 users. They kicked me off the network and it work for a bit but I'm still losing data. She said their tech department is working with Google for a fix.
Fyi...Flash 3 other radio's and it doesn't make a difference.
Click to expand...
Click to collapse
Jeff_in_LA said:
I got the same answer.
I did flash the 5.32 and 5.34 modems. No dice.
Then I tried Developer preview 5.39. It's been working for 15 minutes, which is a long time since the issue cropped up.
What a pain!
Click to expand...
Click to collapse
JimSmith94 said:
Not sure if my issue is the same, but for the last couple days Textra fails to send a text unless I reboot. Even a reply to a just received text fails. I have tried a couple different radios but neither has helped. I am also on a T-Mobile Nexus 6 stock rooted with the August 6.0.1 security update.
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Click to collapse
You guys have a lot of company... > http://www.androidpolice.com/2016/08/04/some-nexus-6-owners-report-data-outages-on-t-mobile/

I'm running stock N6, not rooted; bootloader locked; on T-Mo. While on WiFi, with WiFi calling enabled, I would get out of range of WiFi and cel data would not return without full reboot. If I disable WiFi calling before leaving WiFi service, cel data flipped as normal. I tested again with manual WiFi disable and if WiFi calling was on before the cut out, cel data never flipped on.
[Edit] I did notice though that when it does flip like it's supposed to, I'm connected at 3G. LTE doesn't kick on.

simms22 said:
its NOT an issue with all n6 users on tmobile. i have a nexus 6, since nov 2014, and have never ever had that issue on tmobile. been on tmobile since the early 2000's..
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Stated what T-Mobile told me.

Ok, I did flash the beta radio 5.39.
It might be coincidence, but my phone has a solid connection for three hours now.
Hopefully they fixed it on their end.

I am not seeing this on my N6. Still on 5.1.1 LVY48H.

toastgodsupreme said:
I am not seeing this on my N6. Still on 5.1.1 LVY48H.
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Click to collapse
what radio can work on 5.1
Cause i have flyme rom, but have calls issue, ian not receiving any call. The other end saids it rings but my phone does not ring at all on calls.

It seems to be affecting some people, but not others. It also doesn't seem to be related to ROM, carrier, kernel, or radio versions. There are people all over the world on different carriers having the problem.
The symptoms I see are that I can't connect to any type of cellular data. Voice and SMS seem to work though. WiFi data works fine. GPS use seems to make it more likely to fail. Speedtest.net, Pokemon Go, Ingress, and Google Maps have been used to reproduce it.
The only thing I've found that seems to help is to freeze "Google Connectivity Services" using Titanium Backup. You might also try uninstalling updates, though it will just re-install. If it is related to that, it would make sense as the rollout of updates via Play Store are staged, so people would get the update at different times. I froze it about 4 hours ago and data has been solid with GPS use, LTE and HSPA tested. I also tested switching between WiFi and Cellular without issues on Tmobile-US. That's the only SIM I have, so I can't test other services. I couldn't seem to get a data connection for more than a few minutes before, so it's a huge improvement in my case.

ttabbal said:
It seems to be affecting some people, but not others. It also doesn't seem to be related to ROM, carrier, kernel, or radio versions. There are people all over the world on different carriers having the problem.
The symptoms I see are that I can't connect to any type of cellular data. Voice and SMS seem to work though. WiFi data works fine. GPS use seems to make it more likely to fail. Speedtest.net, Pokemon Go, Ingress, and Google Maps have been used to reproduce it.
The only thing I've found that seems to help is to freeze "Google Connectivity Services" using Titanium Backup. You might also try uninstalling updates, though it will just re-install. If it is related to that, it would make sense as the rollout of updates via Play Store are staged, so people would get the update at different times. I froze it about 4 hours ago and data has been solid with GPS use, LTE and HSPA tested. I also tested switching between WiFi and Cellular without issues on Tmobile-US. That's the only SIM I have, so I can't test other services. I couldn't seem to get a data connection for more than a few minutes before, so it's a huge improvement in my case.
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T-Mobile acknowledges the issue. The one universal is that it's with the N6, not with other phones. There are a bunch of carriers around the world that are having the problem.
When mine breaks, SMS fails. The only mobile connectivity available to me is phone calls.
The Reddit thread mentioned above has people saying that disabling Location Services works. Far from ideal over time, but if it's true, it's something. I tried that. We'll see how it goes. Freezing Google Connectivity Services is nice, if it works without introducing other problems, because it would allow us to keep using whatever connectivity we like without data breaking.
I had a Bluetooth connectivity problem a year or more ago that surfaced literally out of nowhere and on every device I tested, a little more than ten of them. This was independent of ROM, root status, device, anything. The feature in question worked on every Android device we had tried one day (and for more than a year prior) and failed on every one the next. Sounds crazy, but it's what happened. Google barely paid attention to my bug reports and ran me in circles when they did. Never got fixed.
I trust this matter will.

Both my nexus6s are doing this with heavy GPS aps, data will shut down.
Sent from my Nexus 6 using XDA-Developers mobile app

I've had GCS frozen for a long time, running 5.39 radio & it happened to me. There is definitely something occurring substantially with our devices/network be it software or hardware based. Apparently T-Mobile & Google are working on it but the fix might not come until next week. I'll probably install latest N preview when I get home.

Call dropping after 58.1.A.5.159 update

Hi folks,
after the last update I have a big problem: when I start a call suddently the signal goes 0 (on both SIMs) and I receive a "no network" error. After a few seconds the signals go back but sometimes I have to wait for 15 or 20 minutes to call otherwise the call drops again.
It happens even when receiving calls.
I have this problem at around 30/40% of calls I try to make and this is very disappointing because I use the phone for work and I do many calls everyday.
A user on an Italian forum had the same problem two updates ago, he told me that he solved after a reset of the phone. I'm desperate now, tomorrow it's holiday in Switzerland so I think I will do it.
NOTE: It's strange nobody on internet is talking about this problem... It's only me?

Having the same issues with this build.
I have the HK dual sim, which I flashed the SEA firmware onto last year.
I'm having to go back to my old phone until this is resolved, I have missed several calls because of it. I tried a factory reset, which seemed to clear it up for a short while, but the problem came back.

Same problem here. After the update of
51.1.A.5.159​I cannot receive or place calls
I cannot receive or send messages
IF I am inside a building. The network goes from 2 bars to 0 when I try to call. If i go outside of the building the cellular network is stronger (full) and calls are going through. I suspect there's something wrong with the baseband maybe? Which is what I was trying to search for yesterday. Was wondering if the current baseband for Android 11 is new or maybe it is the old one from Android 10?
Regardless, I can wholeheartedly say that Android 11 has basically shattered the signal strenght on this device to the point of making it useless. Now I can use it as a multimedia device... weeeheeeee.... Buy a premium device they say, it will be worth it, they say. Never had this issue on any of my Oneplus devices. Shame on Sony!
(btw my phone has the international software, not the HK one. using it on one single sim- XQ-AT-51).

The italian user told me now he's fine, the problem didn't came back.
Tomorrow I have a Switzerland holiday, I'm going to reset the phone to try to fix the problem.
Thanks for answering my question, it seems I'm not the only one with this problem. It's a pity there's no more official Sony forum to discuss these issues.

theskig said:
The italian user told me now he's fine, the problem didn't came back.
Tomorrow I have a Switzerland holiday, I'm going to reset the phone to try to fix the problem.
Thanks for answering my question, it seems I'm not the only one with this problem. It's a pity there's no more official Sony forum to discuss these issues.
Click to expand...
Click to collapse
Please do let us know how you get going. I too wanted to perform a factory reset but I've postponed it in case I could find some answers on the internet.

1ceb0x said:
Please do let us know how you get going. I too wanted to perform a factory reset but I've postponed it in case I could find some answers on the internet.
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Click to collapse
The phone is now restoring the backup from Google but this evening I don't think I will make a single call.
Tomorrow at work I will stress it (usually I make 1h of calls everyday, using both SIMs), and give you the results. Cheers!

The situation is maybe worse than before.
I don't remember if is it possible to downgrade. Xperifirm? Still works with new phones?
Otherwise I have to use my old XZ Premium because I have so many issues at work.

1ceb0x said:
Same problem here. After the update of
51.1.A.5.159​I cannot receive or place calls
I cannot receive or send messages
IF I am inside a building. The network goes from 2 bars to 0 when I try to call. If i go outside of the building the cellular network is stronger (full) and calls are going through. I suspect there's something wrong with the baseband maybe? Which is what I was trying to search for yesterday. Was wondering if the current baseband for Android 11 is new or maybe it is the old one from Android 10?
Regardless, I can wholeheartedly say that Android 11 has basically shattered the signal strenght on this device to the point of making it useless. Now I can use it as a multimedia device... weeeheeeee.... Buy a premium device they say, it will be worth it, they say. Never had this issue on any of my Oneplus devices. Shame on Sony!
(btw my phone has the international software, not the HK one. using it on one single sim- XQ-AT-51).
Click to expand...
Click to collapse
The thing I noticed is that the call drops when switching network from 4G to 2G. Expecially on my Italian SIM, i have a weak 4G signal in my office (1-0 bars) but I have a full 4 bars 2G signal. Before this update when I start a call you can clearly see the signal bar going from 0-1 to full 4 meaning the phone switched to 2G. After this update it was impossible to place a call from my office on my italian SIM because it fails in that 4G/2G switch.
I put that SIM in "GSM only" and I had no issues in managing calls. It's unpractical but works.
The problem is worse on my Swiss SIM (the one I use for work) that has no 2G coverage, so I leave it in 5G/LTE/WCDMA/ecc ecc and hope the best. But I see some switch happens even there ranging from 0-1 to 3 bars (I think is 4G/3G switch. I don't have 5G or 2G coverage in my office). So I can't do anything to avoid the issue, that happens randomly but it's quite frustrating

(...)Same problem on HK. Does anyone think that the problem will be solved with an update? Sony flagship haha. The gsm signal was much weaker than the former P20pro before .... 178. Now ..... disaster. I think the only asset Remaining that you can read "network unavailable" on a 4K screen

So far mine seems much better after the latest update 58.1.A.5.222.
Here's hoping it was a temporary glitch.

Please try to use only one SIM until new updates.
I have the same issues but with only one it works fine.
Do we have any news about a new update so far ?
Have a good day!

Today the 58.1.A.5.222A update arrived, I tested the phone and seems to be OK, tomorrow I will test it harder during the workday.
PS: since two weeks I was using my old XZ Premium and the 1 II was resting in the drawer. So sad. I tried to flash another firmware but I had errors on Flashtool and newflasher. Nothing worked wtf.

After a working day in my office with many calls on both SIMs (a place where the problem was at its best as wrote before) I can confirm you the update completely solved the problem.
So thanks to everybody for the support, I hope you'll also be able to fix it with this update.
beachbloke said:
So far mine seems much better after the latest update 58.1.A.5.222.
Here's hoping it was a temporary glitch.
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Click to collapse
"Temporary glitch" un par di balle*: 3 weeks with my old XZ Premium, and the actual flagship "Xperia 1 II" in the drawer! And resets, backups, restores, tests, copying gigabytes of data from and to the phone, hours of trying to flash other firmwares and receiving only errors...
* https://forum.wordreference.com/threads/par-di-balle.1875980/

theskig said:
Today the 58.1.A.5.222A update arrived, I tested the phone and seems to be OK, tomorrow I will test it harder during the workday.
PS: since two weeks I was using my old XZ Premium and the 1 II was resting in the drawer. So sad. I tried to flash another firmware but I had errors on Flashtool and newflasher. Nothing worked wtf.
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Click to collapse
I got the same software number and my problem still persists. Thank you for updating the thread with your findings. Glad to hear yours is working now.

Hello everyone, I faced the same issue on my device after updating to the software version mentioned by author, I've fixed the issue by flashing .280 software for SEA customisation. Original one was HK. So, now I'm able to use my phone as usual. Hope this tip will help somewho. Good luck with your devices.