Database Users

Fixed: Text Messaging and Calls

So I've had the G1 since it came out and have been having no problems with it until this week. When my girlfriend and I txt or call eachother it won't work. I have no problems contacting other people. She also has the G1 and she has the same problem too.
First when I txt and try to send the red pending message thing stays on the txt for a long time and then it gives me an error. I have full signal and have 3g. She has the same problem too.
When I try to call her it goes straight to her voicemail and vise versa.
We also tried using IM but the same problem happens and our conversations always get dropped. This has been really pissing us off because we have been using T-mobile together for 4 years now. WTF!?
Are others of you having the same problem when conversating with other G1 owners?
Thanks

Its a sign telling you that you should break up with your GF.
First thing first have you tried restarting your phone by taking the battery out.(you would be suprised how many people don't do this and 80% of the time it fixes the issue.)
Second if you have a long thread of text with her(over 150) try deleting that.
Third if that doesn't work then do a hard reset on each others phones. You won't loose your contacts, the will show up again once you log back in. Try texting and calling each other on fresh phones. If it works start re installing your apps one at a time and texting each other between each one. It could be an app as well blocking you guys.
Still having issues looks like a call to T-mobile tech support is in your future and possibly a warranty exchange.

dont why is that, but deleting some sms messages would help a lot. try those issues from above poster. good luck & dont give up w/your gf

If it's happening on both phones, it sounds like it might be a network issue? Contact T-Mo.

Thanks for your help guys, I'm not a newbie with phones so I did all what's mentioned above.
Took out battery, reseted both phones, hard reseted both phones, installed apps one at a time and we still have that problem. We both delete the threads before they reach 100 so that can't be it.
The problem usually happens at night, I'm going to call T-mobile tomorrow and see if we can get an answer.
Thanks again

elsucio03 said:
Thanks for your help guys, I'm not a newbie with phones so I did all what's mentioned above.
Took out battery, reseted both phones, hard reseted both phones, installed apps one at a time and we still have that problem. We both delete the threads before they reach 100 so that can't be it.
The problem usually happens at night, I'm going to call T-mobile tomorrow and see if we can get an answer.
Thanks again
Click to expand...
Click to collapse
Are you two on separate accounts with T-Mo? If on same account, do you both have a separate dataplan for each G1? I'm just grabbing at straws here, but the way it only malfunctions when you two contact each other seems to suggest it's got something to do with your G1 plan(s)/service(s).
GL

jashsu said:
Are you two on separate accounts with T-Mo? If on same account, do you both have a separate dataplan for each G1? I'm just grabbing at straws here, but the way it only malfunctions when you two contact each other seems to suggest it's got something to do with your G1 plan(s)/service(s).
GL
Click to expand...
Click to collapse
Yes we have a family plan with the unlimited text and data.
I just checked out my account on My T-mobile and they didn't recognize my phone. I tried to change my myfaves but that didn't work so the site is down. It could be that T-mobile is having some sort of issue.

elsucio03 said:
Yes we have a family plan with the unlimited text and data.
I just checked out my account on My T-mobile and they didn't recognize my phone. I tried to change my myfaves but that didn't work so the site is down. It could be that T-mobile is having some sort of issue.
Click to expand...
Click to collapse
As I understand it, each G1 must have its own dataplan, even if you are sharing the same voice plan (i.e. family plan). Perhaps the sales rep who set up your G1s didn't know this and only added one dataplan? When you communicate between your two G1s it would appear to T-Mo's network as the same data customer trying to call/sms itself. Hence the screwiness?
Just a theory.

jashsu said:
As I understand it, each G1 must have its own dataplan, even if you are sharing the same voice plan (i.e. family plan). Perhaps the sales rep who set up your G1s didn't know this and only added one dataplan? When you communicate between your two G1s it would appear to T-Mo's network as the same data customer trying to call/sms itself. Hence the screwiness?
Just a theory.
Click to expand...
Click to collapse
I understand where you're coming from but we have the same voice plan with two separate data/text services.
When we try to call it takes several attempts for it to go through but most of the time our calls are dropped within a minute. Text works most of the time.

elsucio03 said:
I understand where you're coming from but we have the same voice plan with two separate data/text services.
When we try to call it takes several attempts for it to go through but most of the time our calls are dropped within a minute. Text works most of the time.
Click to expand...
Click to collapse
Ahh. Still, it definitely seems to be a T-Mobile issue. I would suggest bringing both phones into a T-Mo store and having them take a look at that and maybe your account as well. If any of the sales reps there has a G1, try calling it.

elsucio03 said:
I understand where you're coming from but we have the same voice plan with two separate data/text services.
When we try to call it takes several attempts for it to go through but most of the time our calls are dropped within a minute. Text works most of the time.
Click to expand...
Click to collapse
One problem i have seen a couple of times, when i have 3g turned on, I cant call out send or receive text messages, and only seems to happen in certain areas of my town. If i disable 3g everything works fine. My roomate has the same issue with his G1 in the same areas of town as well.

Update:
Both of our phones seem to be working fine today. I still don't know what it was though. If it happens again then I'm definitely going to a T-mobile store.
Thanks guys

ranger7424 said:
One problem i have seen a couple of times, when i have 3g turned on, I cant call out send or receive text messages, and only seems to happen in certain areas of my town. If i disable 3g everything works fine. My roomate has the same issue with his G1 in the same areas of town as well.
Click to expand...
Click to collapse
offhand, have you reported that to t-mobile? thats the only way things will ever get fixed, if you havn't. Call drop/similar issues are taken seriously by tmobile and they will send a tech to check it out (though you may be unaware). If the tech can recreate your trouble, it will be fixed.

Update:
Both of our phones are fixed! I called T-mobile and they said that problem has happened before, our sim cards needed to be changed so we can be able to use the 3g.
We both went to the T-mobile store today and got them replaced with no problem and now everything is perfect.
One of the many reasons I love T-mobile and my G1!

elsucio03 said:
Update:
Both of our phones are fixed! I called T-mobile and they said that problem has happened before, our sim cards needed to be changed so we can be able to use the 3g.
We both went to the T-mobile store today and got them replaced with no problem and now everything is perfect.
One of the many reasons I love T-mobile and my G1!
Click to expand...
Click to collapse
Ahh yeah if you are using a legacy SIM that would definitely kill your 3G joy. Need a USIM for 3G I'm glad T-Mo was able to fix it for ya.
Edit: By the way you might want to revise the title of this thread with "Fixed" so folks don't unintentionally bump it a few months later.

jashsu said:
Ahh yeah if you are using a legacy SIM that would definitely kill your 3G joy. Need a USIM for 3G I'm glad T-Mo was able to fix it for ya.
Edit: By the way you might want to revise the title of this thread with "Fixed" so folks don't unintentionally bump it a few months later.
Click to expand...
Click to collapse
Good idea, My SIM card was about 5 years old.
We have problem here and there but it's just service issues.

jashsu said:
Ahh yeah if you are using a legacy SIM that would definitely kill your 3G joy. Need a USIM for 3G I'm glad T-Mo was able to fix it for ya.
Edit: By the way you might want to revise the title of this thread with "Fixed" so folks don't unintentionally bump it a few months later.
Click to expand...
Click to collapse
You do not need a USIM for tmobile. The sim he had may have been too old, but i have not changed my sim for at least 2-3 years and i can swap my sim into any phone i choose. ATT requires a USIM i believe, but tmobile service will work with either... can anyone actually chime in that has an offical t-mo USIM?

phatman81 said:
You do not need a USIM for tmobile. The sim he had may have been too old, but i have not changed my sim for at least 2-3 years and i can swap my sim into any phone i choose. ATT requires a USIM i believe, but tmobile service will work with either... can anyone actually chime in that has an offical t-mo USIM?
Click to expand...
Click to collapse
Oh! Didn't know that. I had T-Mo years ago, but have been with AT&T for the past two years due to a promotional pricing.

No Service for a few seconds, happens all the time

Hey everyone, just another thing I'm facing with my Note 4...
Ever since I got my Note 4, it's been having some problems with No Service, so I thought it was my old SIM card (that had to be hacked off into microSIM shape), but since I got it exchanged for a new one it's still dropping into No Service very often, like twenty times in 5 minutes. Then it seems to be fine for a few hours, but then it happens again a few times and so on...
Basic info:
SM-N910F
Stock, unrooted NK4 ROM with NK4 modem as there is no way to not trip KNOX yet.
O2 Czech Republic
In the same places, my S2 never had a single signal drop (No Service)—not sure if these two things are identical?
Questions/thoughts...
Could this be modem related or could it be something with the device itself?
Is there any way to test it?
I mostly notice it on H and H+, not so much (never) on EDGE, 4G coverage is rare in my area, so I can't say exactly.
Factory reset: could it change something in this case? I'm saving it as the penultimate solution, before getting a new one.
Thanks for your help.

I think I found a little bit of correlation between when and where it happens. Not really sure if it happens only when I'm close to some WiFi network, but I just noticed that when I'm in proximity of a WiFi network, the NO SERVICE is very often.
Plus, when I think about it, I haven't noticed it anywhere else, but in WiFi areas. Is the phone trying to tell me to use the WiFi?! Well, I can do that at home but nowhere else as I don't want my packets sniffed more than they already are by the provider...
Seriously, is there any way that WiFi networks could interfere with my phone's signal/service?

if smart switch is on, yes.

zurkx said:
if smart switch is on, yes.
Click to expand...
Click to collapse
Thank you for the reply, I thought that smart switch was meant for transferring data from an old phone to a new one? Or do you mean some different "smart switch"?

look in settings. smart switch moves data from your mobile network to wifi and back.

zurkx said:
look in settings. smart switch moves data from your mobile network to wifi and back.
Click to expand...
Click to collapse
Yeah, found it, Smart network switch in Wi-Fi settings. I have it unticked. So this shouldn't be affecting me(?) As the No Service happens to me when I'm on mobile data, in Wi-Fi range but my Wi-Fi is off...

no solution yet
I still haven't figured out what's the problem exactly.
But me and my colleague have the same provider, but she's got an S4 and when I had them side-by-side I noticed that both phones dropped to No Service at the same time, but my S2 didn't. The area is fine, signal-wise, there's even a mediocre 4G, but at the time all of them were on H+. And when they "regained consciousness", they were starting from zero signal EDGE back to full H+.
This makes me wonder, as it seems it's got to have something to do with some setting in both phones / SIM cards' setup. Both of them have new SIM cards and both of them did it even with the old ones.
I'm gonna call my provider's tech support to see what they have to say about it.

I am experiencing the same problem here in USA. I bought the phone from Amazon Germany, using it on AT & T network in US. For no reason the phone drops the phone call and goes into " Not registered on network" message. This lasts anywhere from 20 seconds to 5 minutes, then without me doing anything goes back to normal. I was using this phone in Czech republic for a week in January and had no issues.

I was experiencing no service on my Exynos n910u and I ended up reflashing ONLY the modem, and it's fine now.
Proof:
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
Sent from my SM-N910U

Hey guys, thanks for the replies.
It seems to me like a modem issue too. I remember that I had to change modem on my S2 in order for H+ to work.
And since I can see there is an issue when changing countries, it would suggest it as possible... However, does flashing modem only trip the Knox counter or something? I can't read through the forums right now, so I'm asking politely here.
Anyway, I isolated the issue to 3G networks, because when I force my phone to be 2G only it never drops, my signal is green and seldom grey. No service never occurs, but as soon as I switch it to 2G/3G/4G or something else that includes 3G, it starts again.
Sent from my SM-N910F using XDA Free mobile app

carlitos66 said:
I am experiencing the same problem here in USA. I bought the phone from Amazon Germany, using it on AT & T network in US. For no reason the phone drops the phone call and goes into " Not registered on network" message. This lasts anywhere from 20 seconds to 5 minutes, then without me doing anything goes back to normal. I was using this phone in Czech republic for a week in January and had no issues.
Click to expand...
Click to collapse
Wanted to thank you for the input, this just suggests that the modem/radio is at fault. Because you relocated to a different area and it doesn't work properly with the bands there.
I had the same problem on my S2, which was unable to connect to 3G until I flashed the modem recommended to me by someone here on xda. But that was almost 4 years ago, I just don't understand why this happens, what's so different that the modem just wouldn't connect, plus the S2 was bought from my provider and it was branded with their bloatware and still, it didn't work.
But here on my N4, it's similar, but it seems to work just fine and then, all of a sudden, you're facing No Service message for a few seconds or minutes, then boom, you're back on.
I spoke with Samsung support today, and I guess they didn't even understand what I was saying. I'm gonna have to visit them and ask around, if they could flash the modem to something more compatible with my area. Can't use the phone like this, that's why I bought it in the first place - I need to be online and as fast as possible. But now, it would seem like I'm better off with my S2
Sent from my SM-N910F using XDA Free mobile app

Well, that sucks...
So, I had my phone serviced and they said everything was fine and that it's working the way it should.
Of course it isn't, the second I walked out of there I had a No Service a few times again, I already tried changing the bands only to what my provider has, didn't help at all, switched it back to all available bands. Naturally, I got really pissed. There seem to be only two viable options:
a) flash a different modem, as suggested in a previous post
or
b) get rid of the phone, which I really don't wanna do, but it's really annoying having to resend every second message (often twice), be it SMS or IM, because it drops into No Service...
ad a) I did a search and I was unable to find a modem thread or anything regarding modems for N910F, am I blind or there isn't one? Or am I supposed to extract it myself from a stock ROM file? (I don't even remember how to do that anymore, lol.... I guess there is a guide for that, but again, I haven't found it?! Or is it universal across Samsung devices?)
ad b) I love the phone but this makes me wanna throw it out the window
Thanks for any kind of help! I'm desperate.

[email protected]$k! said:
So, I had my phone serviced and they said everything was fine and that it's working the way it should.
Of course it isn't, the second I walked out of there I had a No Service a few times again, I already tried changing the bands only to what my provider has, didn't help at all, switched it back to all available bands. Naturally, I got really pissed. There seem to be only two viable options:
a) flash a different modem, as suggested in a previous post
or
b) get rid of the phone, which I really don't wanna do, but it's really annoying having to resend every second message (often twice), be it SMS or IM, because it drops into No Service...
ad a) I did a search and I was unable to find a modem thread or anything regarding modems for N910F, am I blind or there isn't one? Or am I supposed to extract it myself from a stock ROM file? (I don't even remember how to do that anymore, lol.... I guess there is a guide for that, but again, I haven't found it?! Or is it universal across Samsung devices?)
ad b) I love the phone but this makes me wanna throw it out the window
Thanks for any kind of help! I'm desperate.
Click to expand...
Click to collapse
Did you manage to solve your problems? I have the website with modems but i cant post links.

xztrazil said:
Did you manage to solve your problems? I have the website with modems but i cant post links.
Click to expand...
Click to collapse
Thank you for your reply!
I haven't solved them yet, but it got a lot better when I updated to Lollipop. It's got a different modem (BOC4) and it seems to have improved my situation. So happy I didn't have to throw the phone away after all.
To be clear, it still happens but a lot less since the update, maybe once a week, for a few seconds which I deem acceptable but not ideal.

I took my Note 4 and a hammer into the garden today...........

I took my SM N910L Note 4 and a hammer into the garden today because no matter what I've tried
(and I've tried everything http://forum.xda-developers.com/note-4/general/im-bonkers-ill-pay-50-dollars-to-fix-t3169748)
I just can't get it to work. I put the Note 4 on the grass and I raised the hammer above my head - but I just couldn't do it....... it's not the money......it's the waste.............
So, I'm upping my offer. If you can tell me what to do to get my NOTE 4 receiving and sending DATA again (basically connecting to my carrier) I'll send you 100 dollars. The first person to to show/tell me something that allows me to make a skype call or receive even 1 email through my DATA connection gets the money. INSTANTLY!!!!!
Please read the thread above, all the info is in there except this. I have been trying to flash a different custom ROM in the hope that that will fix it but none of the ROMs I have downloaded will flash thru TWRP (even though I can backup and restore thru TWRP). I get an error message saying unable o open zip. Anyway, if anyone has any ideas please post.
A very big thank you again to all those who have tried to help me already.
I have a hundred dollars pinned on the wall in front of me .................. I'll be sooooooo happy to see it go !
P.S. I know that you are not helping me just for the money, I know you are helping just to help me out (and I have had so much help already), but I just want to make it worth your while too.

Is it the modem? Perhaps try installing the official docomo 4.4.4 rom for the note 4 via Odin. See if that fixes it?
I'm a noob but it's all I can think of. I hope it helps somewhat and if not then just return the phone?

thedarkmunk said:
Is it the modem? Perhaps try installing the official docomo 4.4.4 rom for the note 4 via Odin. See if that fixes it?
I'm a noob but it's all I can think of. I hope it helps somewhat and if not then just return the phone?
Click to expand...
Click to collapse
I think it is the modem too, but I've re-installed 4.4.4 and 5.01 many many times. I flashed individual modems too. Nothing seems to sort it out. Can't return the phone - bought on Amazon from Korea, seller sucks, Amazon unhelpful, that's a dead end - I need to fix it.
Thanks anyway (I'm a noob too )

Might sound stupid, but have you tried a different SIM card?

Naughty boy, if you're posting a photo, make sure you set the correct White Balance

0-0-0 said:
Naughty boy, if you're posting a photo, make sure you set the correct White Balance
Click to expand...
Click to collapse
OOps!

Yup, tried that makes no difference. Have a look at this thread, it lists everything I've done.
http://forum.xda-developers.com/note-4/general/im-bonkers-ill-pay-50-dollars-to-fix-t3169748

load stock rom on it for the 910L with all stock CSC, do a complete reset, turn off carrier data in settings, select carrier network manually then turn on wifi carrier data bluetooth. make sure smart network switch is off. disconnect wifi and try it out.
and if that doesnt work ship me the phone instead of using a hammer on it lol.

Have you called your carrier to make sure it's not some sort of problem with how they have your account set up?

zurkx said:
load stock rom on it for the 910L with all stock CSC, do a complete reset, turn off carrier data in settings, select carrier network manually then turn on wifi carrier data bluetooth. make sure smart network switch is off. disconnect wifi and try it out.
and if that doesnt work ship me the phone instead of using a hammer on it lol.
Click to expand...
Click to collapse
Hi I tried once more everything you said (except the sipping it off ), sorry but it didnt work. Thanks anyway.

Cryingmoose said:
Have you called your carrier to make sure it's not some sort of problem with how they have your account set up?
Click to expand...
Click to collapse
Yup I have 2 sim cards now with two different carriers and have spent hours and hours on the phone with them both trying to work out why it is not getting data. My only glimmer of hope is that although they are different carriers I have found out that they both use the same network (dohhh) so maybe it is specific to that network - DOCOMO.
thanks for your help.

OP, does Settings -> About Device -> Status show that Data is In Service?
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
If yes, you probably have some sort of APN issue with Docomo. If not, you may be boned.
IF YES:
Go to Settings -> More Networks -> Mobile networks -> Access Point Names
Press the plus symbol on the top right, set the name to DOCOMO, set the APN to mopera.net, set the MCC to 440 and MNC to 10.
If this doesn't work, use 0120.mopera.ne.jp as your APN instead.
If that still doesn't work, have you tried a b-mobile SIM? I had this issue once when I was in Japan for some time - Docomo doesn't like people using unlocked, imported devices on their networks for some reason.

Hurrian said:
OP, does Settings -> About Device -> Status show that Data is In Service?
If yes, you probably have some sort of APN issue with Docomo. If not, you may be boned.
IF YES:
Go to Settings -> More Networks -> Mobile networks -> Access Point Names
Press the plus symbol on the top right, set the name to DOCOMO, set the APN to mopera.net, set the MCC to 440 and MNC to 10.
If this doesn't work, use 0120.mopera.ne.jp as your APN instead.
If that still doesn't work, have you tried a b-mobile SIM? I had this issue once when I was in Japan for some time - Docomo doesn't like people using unlocked, imported devices on their networks for some reason.
Click to expand...
Click to collapse
Data is out of service.
I'm off uptown today to see if I can get to try a b mobile sim in it. Wish me luck.

kazbluesk1 said:
Data is out of service.
I'm off uptown today to see if I can get to try a b mobile sim in it. Wish me luck.
Click to expand...
Click to collapse
Man, just take it to a Samsung repair store. They will probably charge you if you have voided your warranty with KNOX but its sure as hell wont cost 100$...

NickVXD said:
Man, just take it to a Samsung repair store. They will probably charge you if you have voided your warranty with KNOX but its sure as hell wont cost 100$...
Click to expand...
Click to collapse
Yup, I think that it is about time. Hate doing it because Im sure it's a software issue, but I don't have any more avenues to go down now. But it will cost more than a hundred dollars though - I live in Japan, I'll be lucky if I get out of their spending less than 200 dollars. Still, let's see.

@kazbluesk1 send me the phone, I will fix it and send back to you =), I hope a for a reply of 100$

kazbluesk1 said:
Yup, I think that it is about time. Hate doing it because Im sure it's a software issue, but I don't have any more avenues to go down now. But it will cost more than a hundred dollars though - I live in Japan, I'll be lucky if I get out of their spending less than 200 dollars. Still, let's see.
Click to expand...
Click to collapse
I didnt think the prices were that high there. Again if its not a hardware problem it cant cost that much.

NickVXD said:
I didnt think the prices were that high there. Again if its not a hardware problem it cant cost that much.
Click to expand...
Click to collapse
Talked to Samsung Japan today. They wont fix try to fix it even if I offer to pay - has to go back to Korea. The company I bought it from said it is user negligence, Amazon says it was working for 7 weeks so it is not there problem.
So, seems I'm left with a very pretty, extremely useful Samsung iPod. No phone though.........................
At some point it is stupid not to give up...................
Am there yet..............??

EclipseX said:
@kazbluesk1 send me the phone, I will fix it and send back to you =), I hope a for a reply of 100$
Click to expand...
Click to collapse
Seriously considering saying yes
At this point I'd consider human sacrifices, voodoo dolls, or crystals too.

Are you sure that SM 910L is your local Note 4 variant? There might be hardware differences in different variants that only accepts certain signal bandwidth for a specific carrier.
Sent from my Samsung Galaxy Note 4 and will never be Note 5.

Nexus 6p no longer works on verizon after using with vodaphone sim card on a trip

Hi all,
My 6p that used to work great on verizon can now no longer make or receive voice calls, even though 4G data works!
I have been using my 6p on a verizon prepaid plan for months, and it has worked flawlessly. I popped a sim into an S4 to activate, then put the sim in the 6p, and everything worked great.
I recently went out of the US for a week. Verizon prepaid doesn't work at all in Europe, so I bought a tourist SIM with some data to be able to use my phone while traveling. Again, this worked great.
When I got home, I put my old verizon sim back in my 6p, expecting to go right back to where I left off. The problem is that can't make or receive any voice calls on the 6p. Whenever I try to make a call, I get a verizon message asking me to enter the 10-digit number again. Incoming calls are going right to voicemail. SMS works fine though, and 4G LTE works fine -- just no voice.
Verizon tech support is no help. They say that if I use the device on anything other than verizon's network, it has been flashed and will never work again fully on the verizon network, which is obviously BS.
I have tried putting the sim card back in an old S4, and voice calls work fine there, so I know it's something with the 6P.
Any ideas on a setting that I might need to change on the 6P to make it work again? The Vodaphone person took my phone for a second and may have made a change or two that I didn't see to the settings? :/
Any help is appreciated! I use this phone for work, and if I can't get this resolved soon then I guess I'll just have to switch to tmobile ASAP.

rdk2077 said:
Hi all,
My 6p that used to work great on verizon can now no longer make or receive voice calls, even though 4G data works!
I have been using my 6p on a verizon prepaid plan for months, and it has worked flawlessly. I popped a sim into an S4 to activate, then put the sim in the 6p, and everything worked great.
I recently went out of the US for a week. Verizon prepaid doesn't work at all in Europe, so I bought a tourist SIM with some data to be able to use my phone while traveling. Again, this worked great.
When I got home, I put my old verizon sim back in my 6p, expecting to go right back to where I left off. The problem is that can't make or receive any voice calls on the 6p. Whenever I try to make a call, I get a verizon message asking me to enter the 10-digit number again. Incoming calls are going right to voicemail. SMS works fine though, and 4G LTE works fine -- just no voice.
Verizon tech support is no help. They say that if I use the device on anything other than verizon's network, it has been flashed and will never work again fully on the verizon network, which is obviously BS.
I have tried putting the sim card back in an old S4, and voice calls work fine there, so I know it's something with the 6P.
Any ideas on a setting that I might need to change on the 6P to make it work again? The Vodaphone person took my phone for a second and may have made a change or two that I didn't see to the settings? :/
Any help is appreciated! I use this phone for work, and if I can't get this resolved soon then I guess I'll just have to switch to tmobile ASAP.
Click to expand...
Click to collapse
What are your APN settings set to? Settings/More/Mobile
Sent from my Nexus 5X using Tapatalk

Under APNs I have:
Verizon
VZWINTERNET
and that is all.
SlimSnoopOS said:
What are your APN settings set to? Settings/More/Mobile
Sent from my Nexus 5X using Tapatalk
Click to expand...
Click to collapse

rdk2077 said:
Under APNs I have:
Verizon
VZWINTERNET
and that is all.
Click to expand...
Click to collapse
And what's listed when you click on VZWINTERNET?
I have Verizon then VZWINTERNET for my top two items, everything else is "Not Set" excluding what's in the photo
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Sent from my Nexus 5X using Tapatalk

Same as yours, unfortunately. Should there be another verizon APN for voice?
SlimSnoopOS said:
And what's listed when you click on VZWINTERNET?
I have Verizon then VZWINTERNET for my top two items, everything else is "Not Set" excluding what's in the photoView attachment 3782640
Sent from my Nexus 5X using Tapatalk
Click to expand...
Click to collapse

rdk2077 said:
Same as yours, unfortunately. Should there be another verizon APN for voice?
Click to expand...
Click to collapse
Dial *#*#4636#*#* and see if your settings match mine in this screen shot.

The format is a little different. I have Verizon Wireless as the current network, but Voice Service says:emergency calls only. Voice Network Type is Unknown.
murphyjasonc said:
Dial *#*#4636#*#* and see if your settings match mine in this screen shot.
Click to expand...
Click to collapse

I'm on Verizon and Every time I use a project fi sim in my Nexus and then go back to the verizon sim...the verizon sim doesn't work any more. I have to get a new sim every time. I think it's just the way Verizon does sim card management on their phones.
Sent from my SM-A710Y using XDA-Developers mobile app

Thats where your problems at. At the bottom mine says LTE/CDMA auto prl does yours say the same? If not you need to change it. If that doesn't help you can hit the 3 dot menu on the top right and click on band 6. It's possible your network band was changed. I had this problem after mistakenly changing mine to USA band.

I actually went to verizon and got a new sim and still no luck. Verizon is crazy. I'm about to just switch carriers.
droidnew said:
I'm on Verizon and Every time I use a project fi sim in my Nexus and then go back to the verizon sim...the verizon sim doesn't work any more. I have to get a new sim every time. I think it's just the way Verizon does sim card management on their phones.
Sent from my SM-A710Y using XDA-Developers mobile app
Click to expand...
Click to collapse

I changed it to LTE/CDMA, but it couldn't find any service at all under that option.
On the three dot menu, weirdly I only have US, Cellular 800, PCS, and Class 10 (800mhz secondary), but no class 6.
murphyjasonc said:
Thats where your problems at. At the bottom mine says LTE/CDMA auto prl does yours say the same? If not you need to change it. If that doesn't help you can hit the 3 dot menu on the top right and click on band 6. It's possible your network band was changed. I had this problem after mistakenly changing mine to USA band.
Click to expand...
Click to collapse

rdk2077 said:
I changed it to LTE/CDMA, but it couldn't find any service at all under that option.
On the three dot menu, weirdly I only have US, Cellular 800, PCS, and Class 10 (800mhz secondary), but no class 6.
Click to expand...
Click to collapse
It sounds to me like your radio bands were modified. You can try flashing your radio again in fast boot or install a custom ROM like chroma that has a lot of extra bands to choose from. A while back I saw a thread in this section where someone had made a zip you can flash for this same problem also.

I had a similar problem with Sprint. Text and data worked fine but no calls. Might be a CDMA related problem.
Mine was caused by me changing the band the "USA" in the phone info (*#*#4636#*#*) menu. I had no way of getting it back because whatever ROM I flashed I never had the "Auto" band option. The Vodafone guy may have changed your phone's banding to Europe and for some reason it's a pain to change it back. I ended up complaining to Google and they allowed me to RMA the device.
However, I saw this thread later which may help fix your problem. Flash the ROM from that thread and go to the info menu and click "Auto".
Good luck.
Edit: Found another thread here describing the same or similar problem and the above fix worked.

bigdave79 said:
I had a similar problem with Sprint. Text and data worked fine but no calls. Might be a CDMA related problem.
Mine was caused by me changing the band the "USA" in the phone info (*#*#4636#*#*) menu. I had no way of getting it back because whatever ROM I flashed I never had the "Auto" band option. The Vodafone guy may have changed your phone's banding to Europe and for some reason it's a pain to change it back. I ended up complaining to Google and they allowed me to RMA the device.
However, I saw this thread later which may help fix your problem. Flash the ROM from that thread and go to the info menu and click "Auto".
Good luck.
Edit: Found another thread here describing the same or similar problem and the above fix worked.
Click to expand...
Click to collapse
I started having the same problem today, with my wife's 6P and my daughters 5X, it turns out the HD Voice feature from Verizon was my problem, since that was the only thing I had modify before they lost phone call capabilities, I went back to the Verizon website and under "My Products and Apps" you are able to disable or remove that feature, I then rebooted each phone and they are able to make calls again. Hope this helps someone.

Sorry to bump an old thread... I've run into this exact same issue. I've tried the rom in the post above - had lots of errors of services stopping but eventually managed to set it to automatic... nothing helped. I tried another purenexus 6.0 rom and while that works better as far as rom goes, it still doesn't let me place voice data calls.
The only thing that halfway works is enabling HD voice - and VoLTE on the phone. This means I can make phones when and where I have LTE but still nothing over the normal cellular voice network.
Anyone find any way of fixing this?

Xfinity Mobile?

I'm seeing people having to jump through some hoops at Verizon to get incoming SMS/MMS up and running on the 6T, and I use Xfinity Mobile (don't judge me; it's half the price, but uses Verizon's network!). My fear is that Comcast customer service being the literal worst in the world, no one there is going to know what "CDMA-less" means. Furthermore, I don't expect them to be willing to help me given that BYOD is currently for iPhones only. That said, I'm using an Essential PH-1 with no issues, so I'm hopeful I can get the 6T working. My unlocked 8/128 is waiting for me to pick up after work, so I guess I'll find out tonight, but I wanted to see if anyone's given it a go yet with Xfinity.
I'll post an update after I try tonight. I'm not thrilled about the likelihood of the restocking fee, but I'm really excited about this phone, so I'm willing to take that shot...
EDIT:
As a test, I threw my Essential PH-1 into just LTE mode and was able to receive a text and a picture message, so it may be that Xfinity Mobile already operates on the CDMA-less protocol on Verizon's network.

chrisliphart said:
I'm seeing people having to jump through some hoops at Verizon to get incoming SMS/MMS up and running on the 6T, and I use Xfinity Mobile (don't judge me; it's half the price, but uses Verizon's network!). My fear is that Comcast customer service being the literal worst in the world, no one there is going to know what "CDMA-less" means. Furthermore, I don't expect them to be willing to help me given that BYOD is currently for iPhones only. That said, I'm using an Essential PH-1 with no issues, so I'm hopeful I can get the 6T working. My unlocked 8/128 is waiting for me to pick up after work, so I guess I'll find out tonight, but I wanted to see if anyone's given it a go yet with Xfinity.
I'll post an update after I try tonight. I'm not thrilled about the likelihood of the restocking fee, but I'm really excited about this phone, so I'm willing to take that shot...
EDIT:
As a test, I threw my Essential PH-1 into just LTE mode and was able to receive a text and a picture message, so it may be that Xfinity Mobile already operates on the CDMA-less protocol on Verizon's network.
Click to expand...
Click to collapse
Are you able to make a call on LTE only?

deskjet390 said:
Are you able to make a call on LTE only?
Click to expand...
Click to collapse
On the Essential PH-1? No. But I expected that. Everything works perfectly in Global mode with Advanced LTE turned on.
I only put it in LTE only mode to test the incoming SMS/MMS.

chrisliphart said:
I'm seeing people having to jump through some hoops at Verizon to get incoming SMS/MMS up and running on the 6T, and I use Xfinity Mobile (don't judge me; it's half the price, but uses Verizon's network!). My fear is that Comcast customer service being the literal worst in the world, no one there is going to know what "CDMA-less" means. Furthermore, I don't expect them to be willing to help me given that BYOD is currently for iPhones only. That said, I'm using an Essential PH-1 with no issues, so I'm hopeful I can get the 6T working. My unlocked 8/128 is waiting for me to pick up after work, so I guess I'll find out tonight, but I wanted to see if anyone's given it a go yet with Xfinity.
I'll post an update after I try tonight. I'm not thrilled about the likelihood of the restocking fee, but I'm really excited about this phone, so I'm willing to take that shot...
EDIT:
As a test, I threw my Essential PH-1 into just LTE mode and was able to receive a text and a picture message, so it may be that Xfinity Mobile already operates on the CDMA-less protocol on Verizon's network.
Click to expand...
Click to collapse
I'll be trying here with my XM sim shortly once FedEx delivers it

Yeah... No dice on Xfinity. On the phone right now trying to work up the chain and explain to them what I actually need. Up to Teir 3 now.

Tier 3 was actually pretty helpful, but I'm still not getting messages right now.. The feature that needs to be *removed* is called "Premium Message Block", apparently. I'm waiting on her to call me back to check in on me so we can move forward...

chrisliphart said:
Tier 3 was actually pretty helpful, but I'm still not getting messages right now.. The feature that needs to be *removed* is called "Premium Message Block", apparently. I'm waiting on her to call me back to check in on me so we can move forward...
Click to expand...
Click to collapse
Please continue to update your progress and what, if anything, was able to get things working. I ordered my 6t as soon as I could after seeing that it had Verizon certification. However, I'm extremely disappointed that my 6t does not work with xfinity mobile. So frustrating for something that should work and doesn't. Are you able to get data to work? My data does not work. Right now I get incoming and outgoing phone calls (including VoLTE), outgoing texts, but no data and no text reception

thompsr2 said:
Please continue to update your progress and what, if anything, was able to get things working. I ordered my 6t as soon as I could after seeing that it had Verizon certification. However, I'm extremely disappointed that my 6t does not work with xfinity mobile. So frustrating for something that should work and doesn't. Are you able to get data to work? My data does not work. Right now I get incoming and outgoing phone calls (including VoLTE), outgoing texts, but no data and no text reception
Click to expand...
Click to collapse
She's going to do more research and get back to me. I'm just happy she's willing to help me out even though they don't do Android BYOD.
Data's working fine for me. The only issue I have is SMS/MMS incoming. And the only real issue I have with that is that I need that for 2FA. Right now, in order to get the phone set up, I put my SIM back in my Essential phone to get the codes. It's clunky, and in the process of that, I goofed up my settings in my Essential phone, so now I can't make calls on it. Again. lol So I've got one phone that does everything but get SMS/MMS, and one that does everything but make and receive phone calls. :sad trombone:

chrisliphart said:
She's going to do more research and get back to me. I'm just happy she's willing to help me out even though they don't do Android BYOD.
Data's working fine for me. The only issue I have is SMS/MMS incoming. And the only real issue I have with that is that I need that for 2FA. Right now, in order to get the phone set up, I put my SIM back in my Essential phone to get the codes. It's clunky, and in the process of that, I goofed up my settings in my Essential phone, so now I can't make calls on it. Again. lol So I've got one phone that does everything but get SMS/MMS, and one that does everything but make and receive phone calls. :sad trombone:
Click to expand...
Click to collapse
Well that's frustrating. I don't understand why my data doesn't work. Has all of your troubleshooting been over the phone with xfinity? Did you have to call a special number to get the level of support that you're receiving?

thompsr2 said:
Well that's frustrating. I don't understand why my data doesn't work. Has all of your troubleshooting been over the phone with xfinity? Did you have to call a special number to get the level of support that you're receiving?
Click to expand...
Click to collapse
I started with chat, but that guy was completely clueless. I then called the normal support number, and Tier 1 pushed me straight to Tier 3 after I explained that I knew exactly what I needed. Alice (Tier 3) knew exactly what I was talking about as soon as I said CDMA-less, told me what they call it in their system, made the change, and told me she'd call back in a bit to make sure it worked. When it didn't, she said she needed to do some research, and she'd call me back. That they're not outright dismissing it as "No BYOD!" is promising, but I'm concerned that her fix didn't work when she had such high confidence.

chrisliphart said:
I started with chat, but that guy was completely clueless. I then called the normal support number, and Tier 1 pushed me straight to Tier 3 after I explained that I knew exactly what I needed. Alice (Tier 3) knew exactly what I was talking about as soon as I said CDMA-less, told me what they call it in their system, made the change, and told me she'd call back in a bit to make sure it worked. When it didn't, she said she needed to do some research, and she'd call me back. That they're not outright dismissing it as "No BYOD!" is promising, but I'm concerned that her fix didn't work when she had such high confidence.
Click to expand...
Click to collapse
Ok, one more question for tonight. Were you upfront with them about the fact that you're trying to get OnePlus 6t to work? Otherwise, I hope to see an update from you in the next day or so with a success story.

thompsr2 said:
Ok, one more question for tonight. Were you upfront with them about the fact that you're trying to get OnePlus 6t to work? Otherwise, I hope to see an update from you in the next day or so with a success story.
Click to expand...
Click to collapse
Yep. I started off with "I'm going to preface this with I know you don't support BYOD with unlocked Android phones, and that's exactly what I'm trying to do with a OnePlus 6T." lol She appreciated me being upfront and once I explained the backstory with this phone on the Verizon network and said I needed CDMA-less provisioning, she knew just what I was looking for.

duffman452001 said:
I'll be trying here with my XM sim shortly once FedEx delivers it
Click to expand...
Click to collapse
I apparently fat fingered my address when I ordered so ill be picking it up tomorrow. Hopefully you get it working otherwise I may just return it if they cant fix it.

Still haven't heard anything back. I remembered that I had an old Google Voice number that I haven't used in forever, so I've switched my 2FA stuff over to that, and told the whole 3 people I still SMS with to message me using other apps, so I'm minimally effected at this point, but I'm not going to give up. Hoping that one of us can get this working, as the phone is perfect in every other aspect.

chrisliphart said:
Still haven't heard anything back. I remembered that I had an old Google Voice number that I haven't used in forever, so I've switched my 2FA stuff over to that, and told the whole 3 people I still SMS with to message me using other apps, so I'm minimally effected at this point, but I'm not going to give up. Hoping that one of us can get this working, as the phone is perfect in every other aspect.
Click to expand...
Click to collapse
What model is your phone? Mine is 8GB/256. I went to the verizon BYOD site and entered my IMEI. It said my phone wasn't compatible. It seems that some IMEIs are compatible. I wonder if this is why my data isn't working. Or maybe it has nothing to do with it. Who knows?

thompsr2 said:
What model is your phone? Mine is 8GB/256. I went to the verizon BYOD site and entered my IMEI. It said my phone wasn't compatible. It seems that some IMEIs are compatible. I wonder if this is why my data isn't working. Or maybe it has nothing to do with it. Who knows?
Click to expand...
Click to collapse
8/128 here. I wouldn't trust that IMEI checker. Lots of people with phones that work get that same error there. It seems to be a crapshoot for accuracy.

thompsr2 said:
What model is your phone? Mine is 8GB/256. I went to the verizon BYOD site and entered my IMEI. It said my phone wasn't compatible. It seems that some IMEIs are compatible. I wonder if this is why my data isn't working. Or maybe it has nothing to do with it. Who knows?
Click to expand...
Click to collapse
I've been giving your data issue some thought, since you're the only person I've heard with it (I've been keeping up with the Verizon threads in case I find something that helps). Did you monkey around with the settings in Phone app using the dialer code? And You're set to 2G/3G/4G in the regular settings with Mobile data turned on?

chrisliphart said:
I've been giving your data issue some thought, since you're the only person I've heard with it (I've been keeping up with the Verizon threads in case I find something that helps). Did you monkey around with the settings in Phone app using the dialer code? And You're set to 2G/3G/4G in the regular settings with Mobile data turned on?
Click to expand...
Click to collapse
I am set to 2G/3G/4G, but I did mess with the settings within the dialer app. I tried all of the different combos with no success.

thompsr2 said:
I am set to 2G/3G/4G, but I did mess with the settings within the dialer app. I tried all of the different combos with no success.
Click to expand...
Click to collapse
Make sure in there you're set to TD-SCDMA/CDMA/UMTS. And that Mobile Radio Power and VoLTE Provisioned are both turned on.

chrisliphart said:
I've been giving your data issue some thought, since you're the only person I've heard with it (I've been keeping up with the Verizon threads in case I find something that helps). Did you monkey around with the settings in Phone app using the dialer code? And You're set to 2G/3G/4G in the regular settings with Mobile data turned on?
Click to expand...
Click to collapse
chrisliphart said:
Make sure in there you're set to TD-SCDMA/CDMA/UMTS. And that Mobile Radio Power and VoLTE Provisioned are both turned on.
Click to expand...
Click to collapse
I double checked that I left it that way when I was done messing with it. But still no data.
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