(Verizon VS995) can't get 4G data and Text/Calling to work in the same network mode. - LG V20 Questions & Answers

I've tried searching on this and couldn't really find any answers. So I have a rooted VS995 (Verizon) and I have to change my network mode in order to get 4G data, but can not receive calls or texts.
[Settings > Mobile networks > System Select > Network Mode]
Here are the results I get.
Global - I get 3G data and I can call and text
LTE/CDMA - I get 3G data and I can call and text
LTE/GSM/UMTS - I get 4G LTE data, but can NOT send or receive calls and texts. Incoming calls go straight to voicemail, calls out fail with a no network detected and texts just say failed to send.
I should add that this all started a few weeks ago when I was flashing a few different roms one day to see which one I liked. My phone worked normally before I flashed a rom (can't remember which one) and now it doesn't matter which rom I flash, I still get this issue. I've been dealing with this for weeks and it's gotten really annoying.
I am DirtySanta Rooted, I have tried installing several different kernels and several different roms with no success. Is there something I am missing? Is there a Radio file or something that I need to flash?
I am even contemplating unrooting, going back to stock and then attempting to re-root, but I fear that I might have to flash a newer OEM that will disable the root method.
Any help would be greatly appreciated.
EDIT: It's late, I'm frustrated and I just realized that this thread is probably supposed to be in Questions and Answers section. If a moderator could move it, that would be great.

Zerotwistknife7 said:
I've tried searching on this and couldn't really find any answers. So I have a rooted VS995 (Verizon) and I have to change my network mode in order to get 4G data, but can not receive calls or texts.
[Settings > Mobile networks > System Select > Network Mode]
Here are the results I get.
Global - I get 3G data and I can call and text
LTE/CDMA - I get 3G data and I can call and text
LTE/GSM/UMTS - I get 4G LTE data, but can NOT send or receive calls and texts. Incoming calls go straight to voicemail, calls out fail with a no network detected and texts just say failed to send.
I should add that this all started a few weeks ago when I was flashing a few different roms one day to see which one I liked. My phone worked normally before I flashed a rom (can't remember which one) and now it doesn't matter which rom I flash, I still get this issue. I've been dealing with this for weeks and it's gotten really annoying.
I am DirtySanta Rooted, I have tried installing several different kernels and several different roms with no success. Is there something I am missing? Is there a Radio file or something that I need to flash?
I am even contemplating unrooting, going back to stock and then attempting to re-root, but I fear that I might have to flash a newer OEM that will disable the root method.
Any help would be greatly appreciated.
EDIT: It's late, I'm frustrated and I just realized that this thread is probably supposed to be in Questions and Answers section. If a moderator could move it, that would be great.
Click to expand...
Click to collapse
Were you able to correct this?

rcicu said:
Were you able to correct this?
Click to expand...
Click to collapse
Sorry for the late response, I was away this weekend.
I ended up flashing just about every rom and kernel I could find and now somehow it seems that it is now working as intended.

Lucky. I still have the same problem, been flashing since I got this phone and not a single one can I get it to stick with service after boot.

Related

New MMS problem arising

Since the last two or three updates within CM builds, I cannot receive MMS from my friend on the sprint network, I am on Tmobile.
I simply receive the message with an attachment that cannot be downloaded. every time I click the download button it tries to retrieve the file and fails
I can receive MMS from myself and it hasn't solved the problem
the apns seem like they have had no direct changes, is something to do with my friends phone more likely or is there a cause for this? tomorrow I will try to have someone on tmobile send me an mms to see if results are different.
need some kind of answer!!! preeeezee
recently gathered info leads me to the suggestion that it is 2.3.4 itself causing this issue, as there is a whole new box called "APN Protocol" in our APN edit menu. Haven't ascertained if there is an actual fix besides downgrading to an older build.
I am having this same exact problem. I know you haven't gotten and answer and it's been a while since you posted on this topic but i didn't want to get yelled at to "use the search feature"
no one seems to have the answer. i get mms from my sister (blackberry) and mom on Verizon. (my mom doesn't even have a smart phone) but my girlfriend with her blackberry on sprint wont come through. It shows the "download" button and it fails every time i click on it.
I haven't tried iphone users yet but seems the problem is carrier specific with my phone not playing nice with others.
I am running the latest cm7 nightly build on mytouch 3g slide from t-mobile. And using the stock message app to send and receive.
(please don't tell me to use handcent or anything of the sort, i'd like an answer to THIS problem, not just a work around)
please someone help!??
Did you try changing the User Agent in the messaging app settings and seeing if it helped?
yeah, actually tried them all. I believe thats only for sending mms so the receiving phone thinks its coming form another type of device. as far as receiving mms, no luck man
on 2.3.4 ive narrowed it down to I cannot receive MMS messages from iPhones on att or verizon. Anyone else who sends me one I am able to download.
Going back to rom in my signature
hmmm, interesting cause i can verify i get from Verizon but not Sprint. And we both have t-mobile, as far as i can see
Just wish the problem was more uniform so that it would be easier to narrow down the problem
im having the same problem with SIMPLE Mobile. it seems i can send to myself and recieve from ALL GSM carriers but CDMA carriers IE. sprint, verizon, metro pcs, do not work i can click download button till im blue in the face and they wont download...any ideas??
I fixed it, or rather it fixed itself. I backed up angry birds data (the only data that matters, otherwise my girlfriend yells at me that she has to start all over AGAIN lol) using titanium. I did a full wipe, data, davlik and cache. Then installed (at the time) the latest nightly, cm7 nightly 78. Automagically fixed, at least the people I tested (including my girlfriends, which was the initial problem) restored angry birds data and donezo. Tell me if it works for you.

[Q] L720 Unlocked with T-mobile rom, but text sometimes take long

So I unlocked my S4 L720 by Using this ==== > " http://forum.xda-developers.com/showthread.php?t=2703955 " I am using it for T-mobile. Once it was unlocked i flashed back to NAE I have signal I have 4G/H+, but kept having issues with different roms. On every rom I have used either from sprint s4 or tmobile s4, 2 out of every 10 text that I send say fail, then I click resend and it says sending. Also I sometimes wouldn't be able to make a phone call, as if their wasnt service, but i could clearly see full bars and H+ signal. Finally after about a minute or so it'll send. With every sprint rom I had the S4 didn't receive mms, but I could send them. Then with some tmobile roms when i would make a call it wouldn't be able to hang up, but I would be able to send/receive mms. I re-did the whole unlock process 3 times and still the samething. Anyone else had this problem? I have honestly tried about 10 different roms from sprint/tmobile. Im currently about to try a stock tmobile base rom DEODEX see if that'll help. Im not exactly a noob, but im also not smart developer. Any help would be appreciated thanks everyone!
Sounds like an APN issue. What APN settings have you been using?

Phone taking forever to send txts

Is anyone else having issues with their phone sending txt messages. Mainly on AT&T. I send a txt and sometimes (probably about 40% of the time) it takes 30sec-3min to send a txt.
I thought it was my rom (PN6) since I dirty flashed from the first PN6 to the last. So I just recently clean flashed PN7 to see if that solved the problem but im still having the issue.
Anyone else having this issue? And/or do you recommend anything?
Anyone?
Ive tried clearing the app data.
Ive tried clearing the device cache via the storage setting in settings
Ive tried clearing the cache in TWRP
Ive tried toggling the permissions for messenger
Ive tried Hangouts to see if it was app specific.
I got a new SIM card from AT&T
The only thing i havent tried is putting my SIM card in a different phone (because i dont have a spare phone) to see if its phone related or server related.
I'd advise to flash to stock factory images and see if it still happens. If not, it's an issue with Pure Nexus and you can try to get support in the official thread. If it still happens, I'd probably talk to AT&T tech support. They might be working on some towers or something. I don't personally have the issue on Project Fi, but I also don't use Pure Nexus.
Texts are normally sent over 1x I believe. I remember reading that AT&T is shutting down their 2g network by the end of the year. They might have shut it down already in your area. Maybe the texts are timing out and then being routed over 3g/4g?
Type *#*#4636#*#* into the dialer>phone information>turn on sms over ims>reboot. Worth a try
hawkswind1 said:
Texts are normally sent over 1x I believe. I remember reading that AT&T is shutting down their 2g network by the end of the year. They might have shut it down already in your area. Maybe the texts are timing out and then being routed over 3g/4g?
Type *#*#4636#*#* into the dialer>phone information>turn on sms over ims>reboot. Worth a try
Click to expand...
Click to collapse
I went into that menu but i didnt see a "turn on SMS over IMS"
That menu looks way different then when it did with 6.0.1 when we used to have to toggle LTE and GSM to get LTE to connect.
Update
I noticed that if i send a txt and its stuck on "sending" if i go tin to the *#*#4636*#*# menu and toggle "Cellular Radio Power" off then on the "stuck" txt send right away.

[Help] LS997 rooted, DevDigitel rom not getting any service

Hi,
Hopefully this is the right place to post, as this account is too new to post in the dev thread.
For the past few days i have been on the latest rom from this thread https://forum.xda-developers.com/v20/development/rom-ls997-stock-debloated-su-goodies-t3531923 (version 4.0HHH) but i cant get any service, be it 3g or 4g (Sprint, LS997). I can text and make calls, however. I've tried everything i can think of and have been searching frantically for help. A list of things i have done so far, to no avail:
wipe data and reinstall rom
update prl
change apn
update profile through sprint zone app
use shortcut master to try to change apn
flash different roms, such as the one found in the dirty santa thread, none of which work
activating my phone by dialing ##873283# - after a while it said my phone was activated, restarted, but then no service
I have been using an app to check up on which networks i'm connected to, and it always says eHRPD. I don't think the problem is that there are no towers in range, because my family members all have 4g lte.
At this point i'm really not sure what else i can do, and any help would be greatly appreciated.
edit - for a bit more info, when i go into settings and try to change the apn all the options are grayed out. the options are: internet, ota, pam, and vowifi, with internet being the only one with a selection circle next to it. thats why i used shortcut master, which was suggested in the devdigitel thread. when i access the apn settings through there, it has 3g_apn, internet, pam, ota, vowifi and a bunch of dummies. i can select 3g_apn or internet, but i dont think either of them make a difference. when i try to make new apns they dont save and i cant select them.
edit 2 - I went back and flashed the sprint stock rom from the dirty santa thread (https://www.androidfilehost.com/?fid=385035244224409782) and then reset the network by dialing ##72786#, then activated it again by dialing ##873283#, and after a prl update and profile update (while connected to wifi) i get 3G on and off and i had 4g lte (for the first time in weeks!) today out in the city. I think the coverage by my house just sucks, but its very frustrating nonetheless. still doesnt seem like a permanent fix, because 3g is very spotty and 4g only lasted for a little bit
rowing the same boat
i am stuck in a similar rut myself. have you had any luck with the problem, OP?
after a successful root/unlock of bootloader and running the stock rooted rom for a few days, I decided to take the plunge and install a custom rom, after my desire for V4A got the best of me. having had problems with modem signal quality in the past, I am out of habit continually checking my signal level. Before flashing the custom ROM, my signal was around -70 to -77 db .. immediately after clean flash of custom ROM my signal level dropped to -117 and lower. when I do see something show up, it is a 3g icon, and then only for a faint second or less. have yet to see the 'LTE' icon show.
I have tried ##72786#, ##873283#, updating prl/profile. deleted via fastboot : system, fota, misc. reboots, reflashes dirty and clean.
still, i yield a totally undesirable (read: not there at all) signal. i have been using Samsung telephones since the Transformer days (pre OG galaxy) and in a situation like this, one would typically have a modem file to flash via 0din. Is there an equivalent to this for LG telephones? I admit my noobishness with the way of doing things with LG, but i am not unfamiliar with adb/fastboot/0din.
Could myself and OP somehow inadvertantly disable a few bands on the modem? is this repairable?
i realize its anecdotal, but still, my signal took a header immediately after flash of the new ROM (i am hesitant to name it, in case someone interprets it as casting shade at another. ) Could this be the reason? Am i missing something really friggin stupid?
Have you found a fix? I'm in the exact same boat.
Hi there!
I had a similar issue with my LS997 as well - I went through all the troubleshooting with sprint, did everything that you've done including installing the stock rom. I was never able to fix it on my own - I had to go to the sprint repair center that was in town, and they used LGup to restore my phone to factory.
The issue that I was having, was that I had data, but couldn't place calls or send texts. When I tried to place a call, it would tell me that my phone was not activated. Texts just wouldn't send. I spent the better part of two days scouring everything that I could find on the issue, and couldn't come up with a solution. It repeated the issue on every rom, every update, everything. This is all that worked for me.
I've decided to keep my phone on stock until we can get our hands on LGup and a stock kdz, since that is what will resolve that particular issue.
Did you come clean and tell them it was rooted? I may have to go in the store today and do this. The phone is almost useless at this point since I can't receive/send calls or texts.
I did come clean, but I carry the nice 13 dollar a month insurance on it. Also been a customer for near 4 years so that helps as well - I didn't tell the rep that I was talking too, I told the tech that was working on my phone. It's my experience that reps care, techs do not. Especially if it's that easy to fix, roughly 15 minutes or so.
Sorry to hear you guys are having issues.
It seems a small hanful of users are experiencing some service issues
Have you tried to do ##brand#
And let it re-activate that way?
I never activated my test device prior to dirty santa and have no idea how it acted before root.
But after root ive been 100% Lte or 3g 1x depending on area. I did have issues that after any rom flash i do need to do a profile update or a ##update# to return service
To be honest. Lte isnt provisioned by the device at all. Its only provisioned by the lte sim card.
If you ##data# and hit view is your ptn and msid present?
If not this is why texts wont work
For data. Ive found you can use the shortcut master and access all the bands for our handests without the msl.. I can get the msl for those who dont have but its not needed for this process.
You use the shortcut master lite app from playstore.. Then go to search and search mobile network settings. Or lte.
Make sure its set to cdma/lte
As well have you confirmed under your settings you have a network set to lte/cdma?
This seems to get unchecked sometimes..
---------- Post added at 06:01 PM ---------- Previous post was at 05:40 PM ----------
For anyone on ls997
[email protected]
My personal support tool using hangouts
Ill be busy tonight but most nights im willing to txt call or video and help with q/a and issues.
I'll give what you suggested a try and report back.
I tried ##brand# and it cleared some settings and rebooted but I still have no network. I did ##data# and went through all the settings and neither ptn or msid are present. Phone is set to CDMA on device settings.
I used Shortcut Master (Lite) and could not find a setting to select CDMA after searching for lte. No search results when I searched for mobile network settings.
To add some information, I live in a very rural area where my phone is always roaming. Today I was in an area where I get LTE so I wiped my phone, flashed the LS997 stock rom and did ##873283#. This enabled data and I got LTE but still no text or voice. I wiped my phone again and flashed your rom, went through the same process and got the exact same results.
Team DevDigitel said:
Sorry to hear you guys are having issues.
It seems a small hanful of users are experiencing some service issues
Have you tried to do ##brand#
And let it re-activate that way?
I never activated my test device prior to dirty santa and have no idea how it acted before root.
But after root ive been 100% Lte or 3g 1x depending on area. I did have issues that after any rom flash i do need to do a profile update or a ##update# to return service
To be honest. Lte isnt provisioned by the device at all. Its only provisioned by the lte sim card.
If you ##data# and hit view is your ptn and msid present?
If not this is why texts wont work
For data. Ive found you can use the shortcut master and access all the bands for our handests without the msl.. I can get the msl for those who dont have but its not needed for this process.
You use the shortcut master lite app from playstore.. Then go to search and search mobile network settings. Or lte.
Make sure its set to cdma/lte
As well have you confirmed under your settings you have a network set to lte/cdma?
This seems to get unchecked sometimes..
---------- Post added at 06:01 PM ---------- Previous post was at 05:40 PM ----------
For anyone on ls997
[email protected]
My personal support tool using hangouts
Ill be busy tonight but most nights im willing to txt call or video and help with q/a and issues.
Click to expand...
Click to collapse
stenomatic said:
I tried ##brand# and it cleared some settings and rebooted but I still have no network. I did ##data# and went through all the settings and neither ptn or msid are present. Phone is set to CDMA on device settings.
I used Shortcut Master (Lite) and could not find a setting to select CDMA after searching for lte. No search results when I searched for mobile network settings.
To add some information, I live in a very rural area where my phone is always roaming. Today I was in an area where I get LTE so I wiped my phone, flashed the LS997 stock rom and did ##873283#. This enabled data and I got LTE but still no text or voice. I wiped my phone again and flashed your rom, went through the same process and got the exact same results.
Click to expand...
Click to collapse
need to set to cdma / lte
pm me or hangouts.
we need to add some settings, or contact sprint care, ask for your msl, and get your msid, you can manually activate it.
Check in about phone under phone number and min ....I lost both and am going to have to get sprint to flash my phone back to stock also
Sent from my Pixel XL using Tapatalk
im writing a fix now guys, we mamanged to get a work around to manual program your devices.
for some awful reason sprint hid the EDIT option to manually program our devices? wtf..
well we managed to do it a diff way. im making a post now to walk everyone who needs to get their phones active and talk/text/3g back.
---------- Post added at 10:59 AM ---------- Previous post was at 10:46 AM ----------
https://forum.xda-developers.com/v20/help/manual-program-sprint-ls997-v20-t3557676
see here for walktrough, working on getting a way to write a prl manually now. Found a setting to do it but i cant get it to show the prls i have on my device.

Phone has lost it's own phone number and min

I was flashing desolation ROM and lost all calls and texts.
Upon looking into my Settings/about phone/status my phone number and min fields say unknown.
I went back to full stock but it is still gone, Sprint tech support cannot do anything either.
The odd thing is that my APN settings are fine and I still get cellular and Wifi data.
Any ideas or am I gonna have to send this thing in?
Unless you back up your calls and messages, you're going to lose them when switching ROMs since you're wiping data. You probably won't be able to get them back.
As for the status fields, can you make calls? The phone number might not show until you make a call.
Not about losing call history or existing texts of course you lose those when you wipe, This is having lost the ABILITY to make or receive texts or calls. It is something messed up in the networks settings regarding the routing for calls/texts.
Tech support was useless.
jady said:
Not about losing call history or existing texts of course you lose those when you wipe, This is having lost the ABILITY to make or receive texts or calls. It is something messed up in the networks settings regarding the routing for calls/texts.
Tech support was useless.
Click to expand...
Click to collapse
What variant do you have? I'm not sure how the carrier versions work so if you don't have the US996 variant I'm afraid I'm unavailable to help you.
Obamaloominaty said:
What variant do you have? I'm not sure how the carrier versions work so if you don't have the US996 variant I'm afraid I'm unavailable to help you.
Click to expand...
Click to collapse
LS997 Sprint
Did you backup modemst1 and modemst2?
EDIT: to elaborate on this, I don't know what Lineage based ROMs do, but when I have seen this in the past the only fix was to restore those two partitions.
They contain things like your phone number, and your IMEI. It may be possible to fix it with a service menu, but Sprint is notorious for pulling the service menus.
Since you are rooted, you could try flashing the system partition from a VS995. I am fairly certain that Verizon has the service menu needed, and that would save you from having to port it.
-- Brian

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