SM-G900P on Straight Talk (AT&T) - Galaxy S 5 Q&A, Help & Troubleshooting

Hi everyone,
I've been a lurker of this site for a little while now, so thank you all for your productivity and guides (If I can get this to work, I will create a guide myself to share ) I recently purchased a Brand New Sprint Galaxy S5 (SM-G900P) with the hopes of unlocking it and using it on Straight Talk AT&T's network. I've made incredible progress so far, but I feel like I'm missing something. Up to this point I've spent countless hours online reading about this device and troubleshooting it.
Current Issue: Phone will not contact any GSM network. I have the sim card in and it just says no service. I know this is only on GSM networks because I disabled all CDMA bands using DFS. All AT&T bands are active and I believe the Galaxy S5 supports almost every band available. APN Settings are set correctly.
Things I have done / tried:
Using Cyanogenmod13 KLTE ROM, Cyanogenmod12.1 SPR ROM, Unofficial CM13 SPR ROM. Also, tried using a "stock?" 4.4.4 ROM that was a little glitchy, but worked nonetheless (tried using SSU.apk here, but afterwards it seemed to sim-lock my phone by giving "Invalid SIM"
Phone unlocked with IDoneApps (no more invalid sim) IDoneApps says its for International and Domestic.
I paid for a Network Access Code and registered the phone with Straight Talk and attempted to transfer the service over (not sure if this is necessary as I am using a GSM SIM, which still works fine in my other phone, perfect service)
Also, on the stock ROM it keeps trying to "Activate the device" and won't be able to. Sometimes the phone goes into roaming and when I call it sends me to Verizon Wireless Customer Service (not sure why on this)
Phone will receive service fine when set to Automatic or CDMA LTE. If I attempt to call a phone I will get "Your account is not authorized to make calls to this phone number" with a mans voice.
-Do I need to do something with Sprint to go forward?
SOLVED IT:
Had to enable the "GCF Setting" on the phone.
YouTube Video: "How to enbale GFC settings on any Samsung Galaxy " - This guide worked flawlessly.
Now all I need to do in order to have perfect service on this SM-G900P on AT&T is to enable the rest of the AT&T LTE Bands on it.

Hey, I know this is necro'ing but I hope you are still around.....
I'm in the same situation as this post right now...I have have a SM-G900P (Sprint Galaxy S5), now activated through Straight Talk, but my data doesn't work when using CM13. I was wondering more what you mean by your GCF settings and maybe some quick tips to get 4G/LTE while on CM (Preferably 13+). Stock Rom I get LTE just fine, but for some reason it gives me this *FUGLY* Creedo mvno app suite when I do a fresh restore of stock rom, and just the whole touchwhiz thing sucks in general. I'd much prefer CM or any other custom ROM that cuts out the BS but gives me data.

Phweak said:
Hey, I know this is necro'ing but I hope you are still around.....
I'm in the same situation as this post right now...I have have a SM-G900P (Sprint Galaxy S5), now activated through Straight Talk, but my data doesn't work when using CM13. I was wondering more what you mean by your GCF settings and maybe some quick tips to get 4G/LTE while on CM (Preferably 13+). Stock Rom I get LTE just fine, but for some reason it gives me this *FUGLY* Creedo mvno app suite when I do a fresh restore of stock rom, and just the whole touchwhiz thing sucks in general. I'd much prefer CM or any other custom ROM that cuts out the BS but gives me data.
Click to expand...
Click to collapse
no worries about necro'ing a thread, im not sure why some folks get bent out of shape about it :/ anyways, what service provider are you using via straight talk? they use all of the major 4 (vzw, at&t, tmob and sprint)
the basic answer to your question is APN settings. did you ever have data working with str8 talk? if so, your gcf settings dont need to be fiddled with, if not, then you have some tinkering to do. not at all difficult really, just some button presses

youdoofus said:
no worries about necro'ing a thread, im not sure why some folks get bent out of shape about it :/ anyways, what service provider are you using via straight talk? they use all of the major 4 (vzw, at&t, tmob and sprint)
Click to expand...
Click to collapse
Well, the only band that identifies when I actually have a working data connection (tops I get is 3G) says Sprint. So I think that's who they're routing me through. I'm not a total rookie when it comes to this, but I don't know how to change the radio bands outside of what apps like Radio Switcher do (which actually just gives me a short cut to quasi-service mode settings in CM).
I get the cell data to read LTE on stock, but it's gross touchwiz and it never seems to get GOOD signal, two bars of LTE was the most in Milwuakee suburbs, an area I'd assume would be swimming in 4G/LTE. I'd much rather use CM for the customization (or any more "purer" android ROMS). If I select CMDA auto PRL I get a solid 3G and all voice/text/data services work. But any other option that includes LTE drops my data entirely.
Edit: I just realized I repeated myself lol. I've made a few posts on various forums about this. Kind of forgotten what info I've provided where. Sorry for the redundancy.

Phweak said:
Well, the only band that identifies when I actually have a working data connection (tops I get is 3G) says Sprint. So I think that's who they're routing me through. I'm not a total rookie when it comes to this, but I don't know how to change the radio bands outside of what apps like Radio Switcher do (which actually just gives me a short cut to quasi-service mode settings in CM).
I get the cell data to read LTE on stock, but it's gross touchwiz and it never seems to get GOOD signal, two bars of LTE was the most in Milwuakee suburbs, an area I'd assume would be swimming in 4G/LTE. I'd much rather use CM for the customization (or any more "purer" android ROMS). If I select CMDA auto PRL I get a solid 3G and all voice/text/data services work. But any other option that includes LTE drops my data entirely.
Edit: I just realized I repeated myself lol. I've made a few posts on various forums about this. Kind of forgotten what info I've provided where. Sorry for the redundancy.
Click to expand...
Click to collapse
i dont have any experience with the sprint flavor of straight talk service, but it should be on the same LTE bands as normal sprint. shouldnt have to monkey with anything tho. ill have to look more when i get home

Phweak said:
Well, the only band that identifies when I actually have a working data connection (tops I get is 3G) says Sprint. So I think that's who they're routing me through. I'm not a total rookie when it comes to this, but I don't know how to change the radio bands outside of what apps like Radio Switcher do (which actually just gives me a short cut to quasi-service mode settings in CM).
I get the cell data to read LTE on stock, but it's gross touchwiz and it never seems to get GOOD signal, two bars of LTE was the most in Milwuakee suburbs, an area I'd assume would be swimming in 4G/LTE. I'd much rather use CM for the customization (or any more "purer" android ROMS). If I select CMDA auto PRL I get a solid 3G and all voice/text/data services work. But any other option that includes LTE drops my data entirely.
Edit: I just realized I repeated myself lol. I've made a few posts on various forums about this. Kind of forgotten what info I've provided where. Sorry for the redundancy.
Click to expand...
Click to collapse
Ok, I reread your op and it said that you're using at&t. Are you sim unlocked? If not, Mr @stifilz, do you think you could hook this guy up? He has a proven track record of unlocking S5s

Just a heads up I'm not OP, that's @aventurer. I just happened to find a very similar situation. Probably changes your train of thought but for what it's worth in my situation, the phone sim came from Sprint originally, and the Straight Talk people said they use that sim to connect to the LTE bands.

Related

Droid Ultra from Verizon to T-Mobile

Thought I'd post my experience on here just because I know a lot of us are switching over and I must have gone through fifteen different threads to figure out how to get my data, talk, and text working. To start off I bought a T-Mobile nano sim and just plugged it straight into my droid thinking it would all be gravy...nope. This is exactly what I had to do: First, go into your mobile network settings and change to LTE/UTMS/GSM. Second, change your (Select Network) to GSM only. Third, create an APN that is as follows: NAME;T-Mobile, APN; epc. tmobile. com, MMSC; ht tp:// mms . msg. eng. t-mobile . com/mms/wapenc . APN Type; default, mms, supl APN Protocol; ip4/ip6. LEave everything else alone. trust me this is the most reliable way to go about doing the switch over and the data is fast, plenty fast. The phone info . apk app does work but for the ultra its not needed so don't worry with it. HAPPY SAVINGS all you DROID LOVERS.
Thanks for the help. I have unlimited Verizon with my bootloader unlocked, but I have issues with good service here where I live and work with Verizon. T-mobile may be better, so I am considering trying it out soon. I am going to test TMO for 7 days with their free program and see. If it works, I may just follow these directions and use my Droid Maxx.
Jeff
How ur work on gsm? If I out mines on gsm internet won't work. Umts is the only way mines work. I get h+ but at times its slow. Worst playing games
P.s am on metro PCs same crap lol T-Mobile all my settings r from T-Mobile
Sent from my XT1080 using XDA Free mobile app
I picked up a Droid Maxx XT1080M (Not the ultra, but they seem so.. similar....) which was unlocked.
I popped a NanoSIM into it, rebooted, and it took a minute but the device figured out to auto switch to the GSM/UMTS/LTE side of the baseband. After that the only thing I needed to do was add the T-Mobile LTE APN.
I'd check your APN and make sure it's on fast.t-mobile.com. From what I've noticed is that when I boot it up, and WIFI is off, if I am to start browsing it goes from E (edge) to H (HSPA) to LTE in about ... 2-3 minutes of browsing/using data. Then it sticks on LTE. This is not always the case as I've rebooted a few times tonight without it bumping down to EDGE.
Getting 43mbps down and 33 mbps up on LTE, and 6down/2up on UMTS/HSPA. In Seattle... This device hits the sweet spots for T-Mobile LTE bands with 1700/2100. We'll miss out on their 1900 build-out, but should still have HSPA+ on those other bands anyway.
One odd message I get after every reboot is The SIM card is from an unknown source. does not seem to affect anything. Anyone know if this is normal? I've not seen this error before on other unlocked devices.
I am on metro, I don't have that issues at all. I pop in Sim, did a apn n wallah 4g LTE n every work fine took me a hot minute to figure out how to get LTE to work.
The Sim car error is Cuz its a Verizon fone. It doesn't effect the fone at all. Once we get root n we get to flash I know we won't c that no more.
Sent from my XT1080 using XDA Free mobile app
Sadly, my phone seems to have a borked radio.
What happened? So I popped in T-Mobile SIM card, and calling and texting is a charm. (Except for the Unknown SIM issue, of course.) I then found out that I was getting NO data after a factory reset. So then I looked to downgrade OS version, blah blah, flashed radio, did fastboot config carrier, so on and so forth. No joy. Sigh...
EDIT: Just realized I revived the topic...
mr_verystock said:
Sadly, my phone seems to have a borked radio.
What happened? So I popped in T-Mobile SIM card, and calling and texting is a charm. (Except for the Unknown SIM issue, of course.) I then found out that I was getting NO data after a factory reset. So then I looked to downgrade OS version, blah blah, flashed radio, did fastboot config carrier, so on and so forth. No joy. Sigh...
EDIT: Just realized I revived the topic...
Click to expand...
Click to collapse
Verizon has changed something in the system part of the most recent ROMs to prevent t-mobile use. I had the same issues. For some, I could bypass the block by removing some of the CDMA references in build.prop. For the most recent Verizon ROM, nothing I tried worked.
Luckily, I am unlocked. Moved originally to a ported Moto X ROM, and then to CM12, and everything works fine there.
That's odd, I'm on the latest build and have 0 issues with Tmobile.
I just plugged my T-Mobile nano sim in last night and used the instructions on this thread and a few others around the internet to get T-Mobile 4GLTE or HSPA+ to work. I can text, make calls, and I get all the Edge (shown as an "E") data i want, but It is way to slow to be useful. I have tried it on both my droid maxx phones (one 2013 - 32gb, and one 2014 - 16gb). Both are on latest system version 24.3.7. Any other advice to make data work decent? I can get NO 4G or HSPA+
Does tmo say you have wcdma or LTE access where you are.
I am having the same issues after FDR and data wouldn't work anymore. In my area I am LTE so the droid ultra that worked well in the last 4 months on T-Mobile, I think it is a software problem.
Yes it is software problem. If you can get your phone rooted and bootloader unlocked then reflash the rom it works perfectly. I get LTE on tmobile on the CM rom no problem.
I run LTE just fine.. All I needed to do was add T-Mobiles APN to my phone..
Sent from my XT1080
I also left it on "Global"
Sent from my XT1080

Moto E xt1526 - use GSM SIM, going round and round

Greetings fellow telephony addicts - purchased a Boost Mobile Moto E w/5.1 (xt1526) because of apparent ease of ul'ing bl and rooting. True enough --
However since then I've been trying to get the device to allow use of a GSM SIM (USA/att.) Recently did it on a vzw (xt1528) no problem following instructions found here bit the xt1526 has beaten me senseless, going so far as to install cm13 in a totally illogical move. It works beautifuly, if you don't need calls or mms. Searched the crap out of the E forums with a couple of tips that did not pan out.
Anyone give me any hints /tips or even a nay as in "you dummy you can't to that!"
TIA,
Littlalex
littlalex said:
Greetings fellow telephony addicts - purchased a Boost Mobile Moto E w/5.1 (xt1526) because of apparent ease of ul'ing bl and rooting. True enough --
However since then I've been trying to get the device to allow use of a GSM SIM (USA/att.) Recently did it on a vzw (xt1528) no problem following instructions found here bit the xt1526 has beaten me senseless, going so far as to install cm13 in a totally illogical move. It works beautifuly, if you don't need calls or mms. Searched the crap out of the E forums with a couple of tips that did not pan out.
Anyone give me any hints /tips or even a nay as in "you dummy you can't to that!"
TIA,
Littlalex
Click to expand...
Click to collapse
Boost / sprint xt1526 are locked so that us domestic GSM Sims are not recognized. To my knowledge, no one here has yet gotten around this. I switched from a sprint branded one to a USCellular, which is fully SIM unlocked out of the box, bootloader unlockable, and supports att LTE. Using it right now with my postpaid ATT SIM
Sent from my XT1526 using Tapatalk
Thanks - That puts an end to the quest, no harm no foul -- On to the next phone!
Littlalex
dandrumheller said:
Boost / sprint xt1526 are locked so that us domestic GSM Sims are not recognized. To my knowledge, no one here has yet gotten around this. I switched from a sprint branded one to a USCellular, which is fully SIM unlocked out of the box, bootloader unlockable, and supports att LTE. Using it right now with my postpaid ATT SIM
Sent from my XT1526 using Tapatalk
Click to expand...
Click to collapse
Only thing I can think of is to flash the RADIO from a variant that isn't SIM locked and seeing if that works. It's a risky experiment tho... it could definitely brick the device in terms of ever being able to connect to a cell tower again.
Closest match is the USC 5.1 stock ROM's radio, which has the same model number XT1526, and is CDMA compatible, but that phone is also known to work on domestic GSM networks.
Double Thanks - Phone is useless to me as is so it's worth a go. Will report the results here.
Littlalex
PresidentMcCain said:
Only thing I can think of is to flash the RADIO from a variant that isn't SIM locked and seeing if that works. It's a risky experiment tho... it could definitely brick the device in terms of ever being able to connect to a cell tower again.
Closest match is the USC 5.1 stock ROM's radio, which has the same model number XT1526, and is CDMA compatible, but that phone is also known to work on domestic GSM networks.
Click to expand...
Click to collapse
littlalex said:
Double Thanks - Phone is useless to me as is so it's worth a go. Will report the results here.
Littlalex
Click to expand...
Click to collapse
Thanks for trying. I hope it works!
littlalex said:
Double Thanks - Phone is useless to me as is so it's worth a go. Will report the results here.
Littlalex
Click to expand...
Click to collapse
Good luck! There was some discussion, in the CDMA development subforum iirc, about this a couple months ago.
Sent from my XT1526 using Tapatalk
I fell in the same trap, but you can still make the phone useful if you sign up for freedom pop or ringplus, i plan on keeping the phone as a backup and getting the N5X next week.
mykenyc said:
I fell in the same trap, but you can still make the phone useful if you sign up for freedom pop or ringplus, i plan on keeping the phone as a backup and getting the N5X next week.
Click to expand...
Click to collapse
Yeah, I've got ring plus on mine with the totally free plan. Nice to have a CDMA emergency phone when my primary carrier is GSM.
Sent from my XT1526 using Tapatalk
Weird - I installed the complete USC 5.1 stock ROM - Everything seems to work fine, but the system version and the broadband version coming up as Sprint. US cellular is not a Sprint MVNO I don't think, but it seems to be kind of a hybrid in terms of networks? No option for switching the network to GSM/LTE in the settings that I can find.
Not sure what I'm going to try next...
Littlalex
PresidentMcCain said:
Only thing I can think of is to flash the RADIO from a variant that isn't SIM locked and seeing if that works. It's a risky experiment tho... it could definitely brick the device in terms of ever being able to connect to a cell tower again.
Closest match is the USC 5.1 stock ROM's radio, which has the same model number XT1526, and is CDMA compatible, but that phone is also known to work on domestic GSM networks.
Click to expand...
Click to collapse
littlalex said:
Weird - I installed the complete USC 5.1 stock ROM - Everything seems to work fine, but the system version and the broadband version coming up as Sprint. US cellular is not a Sprint MVNO I don't think, but it seems to be kind of a hybrid in terms of networks? No option for switching the network to GSM/LTE in the settings that I can find.
Not sure what I'm going to try next...
Littlalex
Click to expand...
Click to collapse
Did you flash the Radio/Modem too? If not, that's why the baseband comes up as Sprint.
Dial *#*#4636#*#*, phone info, change "CDMA/LTE" to "LTE/GSM/CDMA auto (PRL)". If you can't do that, follow the 5.1 instructions here: http://forum.xda-developers.com/moto-e-2015/general/how-to-verizon-moto-e-2015-gsm-network-t3098953 (change the 9 to a 10 for LTE/GSM/CDMA)
This will allow you to change the phone to LTE/GSM/CDMA mode.
Isn't the NON-HLOS.bin file the modem file? I did the keyboard commands and got the phone info and was able to change it but it didn't change anything, live or after a reboot - same thing. did the adb shell commands and the same
thing, cellular network settings grayed out. I put back the sprint SIM that came with the kit and it was fine and the network settings are available...hmmmm.
I greatly appreciate the suggestions. I'm gonna leave the battlefield and get dinner or my wife will call me mean geeky names
PresidentMcCain said:
Did you flash the Radio/Modem too? If not, that's why the baseband comes up as Sprint.
Dial *#*#4636#*#*, phone info, change "CDMA/LTE" to "LTE/GSM/CDMA auto (PRL)". If you can't do that, follow the 5.1 instructions here: http://forum.xda-developers.com/moto-e-2015/general/how-to-verizon-moto-e-2015-gsm-network-t3098953 (change the 9 to a 10 for LTE/GSM/CDMA)
This will allow you to change the phone to LTE/GSM/CDMA mode.
Click to expand...
Click to collapse
Putting this thread to rest
Spent the last couple of days flashing the E with rom after rom, particularly of GSM phones, ATT, TM, etc and their respective radio files. And not to my surprise the phone works fine with every one of then regardless of model XTxxxx anything, phone runs flawless, except for the network of course, which always remains Sprint.
I have to conclude, unless someone can prove otherwise, that the phone network part is either embedded in the chipset as hardware or a combination of hardware and software, or the modem files are somehow protected from being overwritten.
Was interesting and educational.
Thanks to those who gave ideas or suggestions, especially you Mr. President
Littlalex
littlalex said:
Weird - I installed the complete USC 5.1 stock ROM - Everything seems to work fine, but the system version and the broadband version coming up as Sprint. US cellular is not a Sprint MVNO I don't think, but it seems to be kind of a hybrid in terms of networks? No option for switching the network to GSM/LTE in the settings that I can find.
Not sure what I'm going to try next...
Littlalex
Click to expand...
Click to collapse
dandrumheller said:
Boost / sprint xt1526 are locked so that us domestic GSM Sims are not recognized. To my knowledge, no one here has yet gotten around this. I switched from a sprint branded one to a USCellular, which is fully SIM unlocked out of the box, bootloader unlockable, and supports att LTE. Using it right now with my postpaid ATT SIM
Sent from my XT1526 using Tapatalk
Click to expand...
Click to collapse
PresidentMcCain said:
Did you flash the Radio/Modem too? If not, that's why the baseband comes up as Sprint.
Dial *#*#4636#*#*, phone info, change "CDMA/LTE" to "LTE/GSM/CDMA auto (PRL)". If you can't do that, follow the 5.1 instructions here: http://forum.xda-developers.com/moto-e-2015/general/how-to-verizon-moto-e-2015-gsm-network-t3098953 (change the 9 to a 10 for LTE/GSM/CDMA)
This will allow you to change the phone to LTE/GSM/CDMA mode.
Click to expand...
Click to collapse
Ok –*question. If I put Cyanogenmod 13 (Lollipop) onto the Moto E 1526 (U.S. Cellular version) –*will GSM work on it? I need to buy my grandma a GSM phone who doesn't live in the States & I want the GSM card to be easy plug in play for her.
I know that the U.S. Cellular version is the best because it is unlocked for GSM as well, but I believe XT1526's default radio is CDMA.
Maybe I should get a GSM sim card here in the States and switch it to GSM on CM13 (if this is possible) –*that way all my grandmother has to do is put the sim card in without any hassle.
theshiz89 said:
Ok –*question. If I put Cyanogenmod 13 (Lollipop) onto the Moto E 1526 (U.S. Cellular version) –*will GSM work on it? I need to buy my grandma a GSM phone who doesn't live in the States & I want the GSM card to be easy plug in play for her.
I know that the U.S. Cellular version is the best because it is unlocked for GSM as well, but I believe XT1526's default radio is CDMA.
Maybe I should get a GSM sim card here in the States and switch it to GSM on CM13 (if this is possible) –*that way all my grandmother has to do is put the sim card in without any hassle.
Click to expand...
Click to collapse
The device does do funky things with the radio on first boot on a new rom. I've run several CM based marshmallow roms. There's no real issue, but you need to go through the non-adb method (using the network app) to get GSM working on every new clean flash. Typically this means pulling the GSM SIM before initial boot (when I don't, the radio keeps cycling through modes making initial setup very difficult), do setup on Wi-Fi, turn off radio, insert SIM, then do the process.
I definitely would not give the device to a non tech savvy person before doing this on a clean flash. Once it's done, you can remove and reinsert Sims without issue.
Sent from my XT1526 using Tapatalk
dandrumheller said:
you need to go through the non-adb method (using the network app) to get GSM working on every new clean flash. Typically this means pulling the GSM SIM before initial boot (when I don't, the radio keeps cycling through modes making initial setup very difficult), do setup on Wi-Fi, turn off radio, insert SIM, then do the process.
I definitely would not give the device to a non tech savvy person before doing this on a clean flash. Once it's done, you can remove and reinsert Sims without issue.
Sent from my XT1526 using Tapatalk
Click to expand...
Click to collapse
Thanks for the info and advice. Much appreciated.
Btw, when you say turn off radio –*you mean by using network app right? And you'r ereferring to these instructions from: http://forum.xda-developers.com/moto-e-2015/general/help-confirm-5-1-how-to-verizon-moto-e-t3264258 ?: "Switch Sims
switch to settings -> cellular networks
Pull down notifications-> Airplane mode ON
Network App -> GSM / LTE (close app)
switch to settings
verify 4g (I always click on it, still shows CDMA)
NEtwrok app -> Turn on Radio
Settings -> click on CDMA -> Select 4G
Airplane Mode OFF"
theshiz89 said:
Thanks for the info and advice. Much appreciated.
Btw, when you say turn off radio –*you mean by using network app right? And you'r ereferring to these instructions from: http://forum.xda-developers.com/moto-e-2015/general/help-confirm-5-1-how-to-verizon-moto-e-t3264258 ?: "Switch Sims
switch to settings -> cellular networks
Pull down notifications-> Airplane mode ON
Network App -> GSM / LTE (close app)
switch to settings
verify 4g (I always click on it, still shows CDMA)
NEtwrok app -> Turn on Radio
Settings -> click on CDMA -> Select 4G
Airplane Mode OFF"
Click to expand...
Click to collapse
Yep, you got it. Actually, I don't think it's too picky about the order of operations as described in that thread - I've done this many times without referring to the thread so have likely done it "wrong" at times, and it still works. Basically, radio off (either via airplane mode or network app), switch modes, radio back on.
Just don't clean flash a rom without either access to Wi-Fi, or a locally installable copy of the network app.
Sent from my XT1526 using Tapatalk
Hey .. i am in Karachi Pakistan ...
i have seen this phone workingperfectly with gsm network until someone makes a factory Data reset ..
still not found out the solution ..
the devices arrived from china in working condition ..
FYI - US Cellular was bought out by sprint last year, so they are now a sprint mvno.
Did you try flashing the stock 6.0 ROM?

Verizon compatibility broken after update?

Hey guys, I just saw a YouTube video that was posted yesterday where the guy shows that after the update he no longer could connect with his Verizon SIM card in the axon 7. Has anybody else run into this? Mine won't be here until Monday but if this is true I'm going to be sorely disappointed. Thanks for your input.
I am on verizon with no additional problems after the update. I am still always roaming, and my signal is the same (more bars but still the same reception). LTE, MMS, SMS, Cdma all work the same.
I'm really glad to hear that. I'm not so sure the guy knew what he was doing either... Lol :silly:
CaptainElwood said:
I am on verizon with no additional problems after the update. I am still always roaming, and my signal is the same (more bars but still the same reception). LTE, MMS, SMS, Cdma all work the same.
Click to expand...
Click to collapse
Quick question for you bud. I currently have the Moto Z-Force, but I want an unlocked phone that I can root and mess around with and unfortunately this phone doesn't have that capability. Would you say this is a great alternative in terms of functionality and specs? Tia
CaptainElwood said:
I am on verizon with no additional problems after the update. I am still always roaming, and my signal is the same (more bars but still the same reception). LTE, MMS, SMS, Cdma all work the same.
Click to expand...
Click to collapse
I second this. No issues on Verizon unlimited plan after update. Always showing roaming also. Mms, sms, calls work as suppose to. All out of the box settings.
Sent from my ZTE A2017U using XDA-Developers mobile app
tolymatev said:
I second this. No issues on Verizon unlimited plan after update. Always showing roaming also. Mms, sms, calls work as suppose to. All out of the box settings.
Sent from my ZTE A2017U using XDA-Developers mobile app
Click to expand...
Click to collapse
I can third it lol no issues here. Mine actually has better signal after update on verizon and sms/mms everything works still no issues anywhere
My VZW situation. Just an FYI post AND how to fix it.
I'm on Verizon, have had my Axon 7 for over a month now. No issues other than not having VoLTE, and the occasional software farts (Using Nova Launcher now). When I initially set-up my phone, I imported all previous apps directly from the Play Store. I should have known not to install the VZW apps that were previously installed on my HTC One M8 (purchased directly from VZW), but in my excitement for the new phone, it skipped my mind. Anyhow, no issues through 9/19. "Verizon" displayed as my carrier, and full access to the LTE network.
Fast forward to 9/20 (post B27 update) when one of the VZW updated automatically (I don't recall which of the 2 apps I had installed), and BAMM, "123456" displayed as my carrier and no more access to the LTE network (3G only). Later that evening, my VZW account showed my number with an "unauthorized, non-VZW device", whereas, before the VZW app update it showed my HTC one M8. I removed the SIM and shut down the phone, re-installed the SIM and re-booted....nada. Tried what seemed to be every permutation of replacing the SIM card, played around with APN settings...no dice.
My feeling is they booted me off 4G LTE once the app recognized I was using an unauthorized, non-VZW device. The steps below solved the issue (Provided by "vzwcdma" via the ZTE Community Forum).
"As for losing LTE connectivity, I've had a similar problem before, both on the A7 and other devices. On other devices, like Motorola devices, I could just boot into the bootloader and clear the modem state partitions via fastboot, but ZTE seems to have disabled that function in the A7's bootloader. So, for the A7, I had to mess around a bit with the modem mode. Download "Network" or "4G LTE Switch" from the Play Store. Open it and scroll down to "Set preferred network type", where it should say "LTE/GSM/CDMA auto (PRL)". There isn't really a set guide for what you have to do, but try switching into LTE-only mode, try hitting "Turn off radio" and "Turn on radio" (not Airplane Mode), maybe try "LTE/CDMA audo (PRL)", maybe turn off radio, switch to LTE-only mode, turn on radio, etc. At some point (I'm not sure what) the phone will reset its modem state, and should re-connect to Verizon LTE (and when it does, switch the network type back to LTE/GSM/CDMA auto PRL.
My Verizon account also shows "unauthorized, non-VZW device". Shouldn't affect anything. I've been using an unauthorized/non-VZW device prior to the A7 with no issues as well."
roseykr said:
My VZW situation. Just an FYI post AND how to fix it.
I'm on Verizon, have had my Axon 7 for over a month now. No issues other than not having VoLTE, and the occasional software farts (Using Nova Launcher now). When I initially set-up my phone, I imported all previous apps directly from the Play Store. I should have known not to install the VZW apps that were previously installed on my HTC One M8 (purchased directly from VZW), but in my excitement for the new phone, it skipped my mind. Anyhow, no issues through 9/19. "Verizon" displayed as my carrier, and full access to the LTE network.
Fast forward to 9/20 (post B27 update) when one of the VZW updated automatically (I don't recall which of the 2 apps I had installed), and BAMM, "123456" displayed as my carrier and no more access to the LTE network (3G only). Later that evening, my VZW account showed my number with an "unauthorized, non-VZW device", whereas, before the VZW app update it showed my HTC one M8. I removed the SIM and shut down the phone, re-installed the SIM and re-booted....nada. Tried what seemed to be every permutation of replacing the SIM card, played around with APN settings...no dice.
My feeling is they booted me off 4G LTE once the app recognized I was using an unauthorized, non-VZW device. The steps below solved the issue (Provided by "vzwcdma" via the ZTE Community Forum).
"As for losing LTE connectivity, I've had a similar problem before, both on the A7 and other devices. On other devices, like Motorola devices, I could just boot into the bootloader and clear the modem state partitions via fastboot, but ZTE seems to have disabled that function in the A7's bootloader. So, for the A7, I had to mess around a bit with the modem mode. Download "Network" or "4G LTE Switch" from the Play Store. Open it and scroll down to "Set preferred network type", where it should say "LTE/GSM/CDMA auto (PRL)". There isn't really a set guide for what you have to do, but try switching into LTE-only mode, try hitting "Turn off radio" and "Turn on radio" (not Airplane Mode), maybe try "LTE/CDMA audo (PRL)", maybe turn off radio, switch to LTE-only mode, turn on radio, etc. At some point (I'm not sure what) the phone will reset its modem state, and should re-connect to Verizon LTE (and when it does, switch the network type back to LTE/GSM/CDMA auto PRL.
My Verizon account also shows "unauthorized, non-VZW device". Shouldn't affect anything. I've been using an unauthorized/non-VZW device prior to the A7 with no issues as well."
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Click to collapse
Good to know! I've had so many phones and this hardware looks so awesome for the price, but of course vzw isn't gonna play nice with it without some work. Looking forward to getting mine
Verizon still working fine for me.
After the b27 update I saw improved signal strength. I'm on page plus mvno. After driving in a fringe reception area, I lost lte,and I showed as roaming. It seemed to be using boost Mobile from what the phones network menus displayed. Axon doesn't have a mobile network setting for 'system b', only auto & home only. Tried both, rebooting each time, no fix. I ended up resetting phone, fixed it all. I then switched mobile network to home only, and hoping that it's done.
PS-after b27 I had to re-enable a couple settings, pinch for screen shot, etc.
Edit: it's now been several weeks with it set to home network only. I daily drive in fringe reception areas and have better signal strength than ever, with any phone/carrier combo. All is great, no more issues. Great phone!
For reference, I'm on page plus mvno, dropped in my activated sim from my old phone into the right-side sim slot for CDMA services. Then set to home only. Done.
Sent from my Axon 7 using XDA Labs
Just wanted to see if anyone else had inputs of post update Verizon service, good and bad... hasn't been a ton of chatter in the last week. I have a phone on its way from the egg, trying to decide if it's worth starting a new sim card with Verizon and dealing with that work around... is getting the number off a display and ordering online still the easiest way to get activated?
Works great on VZW still. Love the phone.
methcat said:
Just wanted to see if anyone else had inputs of post update Verizon service, good and bad... hasn't been a ton of chatter in the last week. I have a phone on its way from the egg, trying to decide if it's worth starting a new sim card with Verizon and dealing with that work around... is getting the number off a display and ordering online still the easiest way to get activated?
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Click to collapse
I'd say that the Axon works just as well on Verizon as it did prior to the update, but with potentially better signal strength though I didn't really have a big issue with that prior to the update so I'm not sure (the T-Mobile SIM does seem to do a lot better post-update...but Verizon has always worked well).
I really doubt you'll have any substantive trouble with VZW on this device, especially if you're willing and able to mess a bit with some of the more advanced settings just in case a problem does arise. Here are the oddities, and I'm trying to list *all* of them!
1. No VoLTE or (I presume) HD calling
2. Voicemail appears to have to be accessed by dialing *86 as opposed to long-pressing the '1' key
3. Roaming icon is present intermittently
4. Data roaming *must* be enabled to ensure consistent and reliable data service
5. Verizon's website won't recognize the device at all in the Account Overview pages (mine still shows the last "approved" device I had with my VZW SIM - an iPhone 6S)
6. MMS *may* require a hack to get the proper APN, though I've had no trouble with this (I'm prepaid though); the hack requires a GSM SIM, so beware of this
7. 1X reception *seems* a tad weak in terms of dBm but functionally it almost seems better than my other Verizon phones (weird!)
8. Carrier label will be either '123456,' '002127' (EvDO only), or (I think?) '31000' when not using LTE (i.e., 1X or 3G). When on LTE the phone should show "Verizon Wireless" as normal
9. A SIM/modem reset may be necessary once in a great while it seems...so it's good to understand how to navigate to the "Phone Information" screen to toggle radio settings...also, I've found just SIM-cycling with a GSM SIM will often fix any connectivity problems as well...and sometimes just rebooting the phone with no SIM at all can help too (or a combo of all the above!)
If you can tolerate the above issues then the phone is great. I really enjoy it. I've found the Verizon side of things to be pretty reliable on the Axon 7, even with my endless tinkering with radio modes and other stuff, which has seemed to get me into (recoverable) trouble a few times.
Most importantly - the endless chatter on various forums that Verizon "blocks" the Axon 7 and other non-approved devices is total bunk. In every case where I've run into an issue it can be resolved on my side - Verizon is doing nothing whatsoever to inhibit the use of the Axon 7 on its network as far as I can tell (notwithstanding activation hurdles, admittedly)...many of the people making such claims seem to be speaking from a standpoint of total ignorance and it's kind of getting annoying, to be honest...it seems like the minute someone has an issue with the Axon 7, some ignoramus gets on the relevant forums/comments and claims that Verizon is "blocking" the device. Total BS IMO.
Good luck! As far as activation is concerned...I'd say it might be best to just go to Wal-Mart and buy a cheap prepaid phone or something (looks like the HTC Desire 526 has a nano-SIM and is only $37.49 on their website)...or maybe a cheap nano-SIM'd Verizon phone off of Swappa or eBay? That's probably what I'd do...But I know neither of those solutions are particularly helpful...VZW definitely makes it a bit of a pain.
flyer_andy said:
I'd say that the Axon works just as well on Verizon as it did prior to the update, but with potentially better signal strength though I didn't really have a big issue with that prior to the update so I'm not sure (the T-Mobile SIM does seem to do a lot better post-update...but Verizon has always worked well).
I really doubt you'll have any substantive trouble with VZW on this device, especially if you're willing and able to mess a bit with some of the more advanced settings just in case a problem does arise. Here are the oddities, and I'm trying to list *all* of them!
1. No VoLTE or (I presume) HD calling
2. Voicemail appears to have to be accessed by dialing *86 as opposed to long-pressing the '1' key
3. Roaming icon is present intermittently
4. Data roaming *must* be enabled to ensure consistent and reliable data service
5. Verizon's website won't recognize the device at all in the Account Overview pages (mine still shows the last "approved" device I had with my VZW SIM - an iPhone 6S)
6. MMS *may* require a hack to get the proper APN, though I've had no trouble with this (I'm prepaid though); the hack requires a GSM SIM, so beware of this
7. 1X reception *seems* a tad weak in terms of dBm but functionally it almost seems better than my other Verizon phones (weird!)
8. Carrier label will be either '123456,' '002127' (EvDO only), or (I think?) '31000' when not using LTE (i.e., 1X or 3G). When on LTE the phone should show "Verizon Wireless" as normal
9. A SIM/modem reset may be necessary once in a great while it seems...so it's good to understand how to navigate to the "Phone Information" screen to toggle radio settings...also, I've found just SIM-cycling with a GSM SIM will often fix any connectivity problems as well...and sometimes just rebooting the phone with no SIM at all can help too (or a combo of all the above!)
If you can tolerate the above issues then the phone is great. I really enjoy it. I've found the Verizon side of things to be pretty reliable on the Axon 7, even with my endless tinkering with radio modes and other stuff, which has seemed to get me into (recoverable) trouble a few times.
Most importantly - the endless chatter on various forums that Verizon "blocks" the Axon 7 and other non-approved devices is total bunk. In every case where I've run into an issue it can be resolved on my side - Verizon is doing nothing whatsoever to inhibit the use of the Axon 7 on its network as far as I can tell (notwithstanding activation hurdles, admittedly)...many of the people making such claims seem to be speaking from a standpoint of total ignorance and it's kind of getting annoying, to be honest...it seems like the minute someone has an issue with the Axon 7, some ignoramus gets on the relevant forums/comments and claims that Verizon is "blocking" the device. Total BS IMO.
Good luck! As far as activation is concerned...I'd say it might be best to just go to Wal-Mart and buy a cheap prepaid phone or something (looks like the HTC Desire 526 has a nano-SIM and is only $37.49 on their website)...or maybe a cheap nano-SIM'd Verizon phone off of Swappa or eBay? That's probably what I'd do...But I know neither of those solutions are particularly helpful...VZW definitely makes it a bit of a pain.
Click to expand...
Click to collapse
#6 might not need the GSM SIM workaround anymore after the B27 update. The + sign shows up for me all the time now, even if I only have a Verizon SIM inserted.
thanks for the list guys, i think i'll give it a shot. i'm going to try to add it as a second line to my wifes plan online. is borrowing a friends imei from a nano phone still the best way to get a new activated sim for this phone?
that 526 is a predaid, will verizon just switch that sim to plan if i call in? or are they different?
---------- Post added at 03:42 PM ---------- Previous post was at 03:18 PM ----------
methcat said:
that 526 is a predaid, will verizon just switch that sim to plan if i call in? or are they different?
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Click to collapse
found this, not sure if this is still the rule...
http://www.prepaidphonenews.com/2016/02/new-policy-may-require-verizon-prepaid.html
"It turns out that Verizon made a policy change effective 1/17/16 that requires Verizon Prepaid Phones to be activated on Verizon Prepaid and have at least $30 in airtime applied to them before they cam be used on Verizon postpaid. A Reddit user posted a copy of an internal Verizon document detailing the new rule:
Effective 1/17/2016, customers who purchase a Prepaid 4G device must activate on a $30, $45, or $60 Prepaid plan and make at least 1 monthly service payment before they are eligible to move the device to a new or active Postpay account .
Device remains locked until first month’s payment is made on their Prepaid plan.
Device is unlocked automatically upon successful first month’s payment and can be used on Postpaid plan (new SIM or SIM swap).
Attempting to use an active Postpay SIM Card with a new 4G LTE Prepaid PIB smartphone prior to making the required monthly payment, hotlines the Postpay MDN (SFO 83643) . The hotline remains until first month’s payment is made.
Customers who activate on the $45 or $60 Prepaid plans and enroll in Auto Pay, receive bonus 1GB data per month.
If account is hotlined:
Data access, outgoing calls, and text messaging do not work.
Text message is sent to smartphone.
*VZW FREE MSG: Phone must be activated on Verizon Wireless Prepaid service and first monthly payment must be made before it can be used with any other service. *
Auto-remark is placed on the customer's account.
*SIM Swap attempted: MDN Hotlined. Phone must be activated on VZW Prepaid service and first month paid before it can be activated as postpaid. *"
methcat said:
thanks for the list guys, i think i'll give it a shot. i'm going to try to add it as a second line to my wifes plan online. is borrowing a friends imei from a nano phone still the best way to get a new activated sim for this phone?
that 526 is a predaid, will verizon just switch that sim to plan if i call in? or are they different?
---------- Post added at 03:42 PM ---------- Previous post was at 03:18 PM ----------
found this, not sure if this is still the rule...
http://www.prepaidphonenews.com/2016/02/new-policy-may-require-verizon-prepaid.html
"It turns out that Verizon made a policy change effective 1/17/16 that requires Verizon Prepaid Phones to be activated on Verizon Prepaid and have at least $30 in airtime applied to them before they cam be used on Verizon postpaid. A Reddit user posted a copy of an internal Verizon document detailing the new rule:
Effective 1/17/2016, customers who purchase a Prepaid 4G device must activate on a $30, $45, or $60 Prepaid plan and make at least 1 monthly service payment before they are eligible to move the device to a new or active Postpay account .
Device remains locked until first month’s payment is made on their Prepaid plan.
Device is unlocked automatically upon successful first month’s payment and can be used on Postpaid plan (new SIM or SIM swap).
Attempting to use an active Postpay SIM Card with a new 4G LTE Prepaid PIB smartphone prior to making the required monthly payment, hotlines the Postpay MDN (SFO 83643) . The hotline remains until first month’s payment is made.
Customers who activate on the $45 or $60 Prepaid plans and enroll in Auto Pay, receive bonus 1GB data per month.
If account is hotlined:
Data access, outgoing calls, and text messaging do not work.
Text message is sent to smartphone.
*VZW FREE MSG: Phone must be activated on Verizon Wireless Prepaid service and first monthly payment must be made before it can be used with any other service. *
Auto-remark is placed on the customer's account.
*SIM Swap attempted: MDN Hotlined. Phone must be activated on VZW Prepaid service and first month paid before it can be activated as postpaid. *"
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Click to collapse
Dang...yeah I think you're right about this. My mistake...ugh I wish they'd just make it easy! In that case I'd say Swappa would be the best route...I've bought a few phones off of there and it's always been a great experience.
What are your APN settings? I'm having issues getting my data to work on Verizon.
Salmonella lolz said:
What are your APN settings? I'm having issues getting my data to work on Verizon.
Click to expand...
Click to collapse
Mine: http://forum.xda-developers.com/showpost.php?p=68263623&postcount=61
So frustrating. Before update used today Verizon in upper left corner. Switched to 123456 after update. Rebooted and it went back. After another reboot it only says 123456 and nothing I do will change it back. And now when I get an MMS hangouts tells me it needs to download it but nothing happens. I never get LTE anymore either.
Edit: not sure what I did but it's back now. Might have something to do with bearer in apn settings being lte.
KyJelly69 said:
So frustrating. Before update used today Verizon in upper left corner. Switched to 123456 after update. Rebooted and it went back. After another reboot it only says 123456 and nothing I do will change it back. And now when I get an MMS hangouts tells me it needs to download it but nothing happens. I never get LTE anymore either.
Edit: not sure what I did but it's back now. Might have something to do with bearer in apn settings being lte.
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Click to collapse
That's #9 in the above list that was posted. Need to cycle the modem state of the device.
so, can someone help me with a little clarification? did ZTE ever actually disable anything regarding Verizon on this phone? i know when people quote the webinar, it sounded like they were going to. i understand that the functionality is basically all still working, but i'm wondering if maybe i'm confused on the terminology.
in this post on reddit, i heard the same thing that has been repeated by some, and i am wondering if i have my band terminology confused. is the cdma part different from the 4g lte part(and that's why it's still working)?, or is sarah just incorrect?
SarahSchmera 3 points 9 hours ago
Axon 7
Doesn't work on Verizon yet. It supposedly has CDMA radios but the radio firmware has them disabled. ZTE can't by law enable the CDMA radios because they didn't get FCC approval for the CDMA radios. They would have to pay for the testing and then resubmit the device to the FCC to get approval before they turned on the CDMA radios through a software update.
And the device doesn't have the firmware for VoLTE, HD calling or WiFi calling on Verizon.
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Click to collapse

OnePlus 3T T-Mobile VoLTE issues/fix

I know this has other threads, but I wanted to post something that helped me get VoLTE working that none of the other threads addressed.
Quick background: new to TMobile, new to the 1+ brand. Rooted, stock. I could get LTE, but I kept getting kicked to roaming AT&T H+ or 3G, couldn't get VoLTE, and very slows speeds even when on LTE. Tried every APN combo, network settings reset, factory phone reset, tried every *#*#4636#*#* preferred network type...nothing. Chatted in to 1+ asking if I could speak to technical support. The response was the only way to fix it was to factory reset (which I had already done) and downgrade OOS. The newest OOS has the T-Mobile optimizations, so downgrading makes no sense! Needless to say, the whole 30 min chat was a waste of time and just a bunch of weak canned responses with no attempt to really help or figure out how to escalate me to someone with some knowledge of the APNs and settings needed.
Out of desperation, or since I had tried every other possible trick, I went under my T-Mobile SIM, Network Operators, and toggled Auto Choose and manually chose TMobile 4G.
Boom, full bands 4, 12 and VoLTE, and normal speeds! Carrier aggregation is even working sometimes.
I don't know why Auto Choose doesn't know how to grab 4G permanently, but everything is working!
Does anyone have any idea why this fixed it? Since I choose 4G, will I lose my ability to get 3G in rural areas? I don't feel like there was much info on how VoLTE is provisioned on the phone.
What's everyone's experience with the preferred network settings? I'm currently in LTE/UMTS, and I don't have the LTE/GSM option that apparently everyone else has...?
Also, does everyone else have as sporadic speeds as I do? One moment it'll be 40 down, next it'll be 6? I know it has to do with bands, but should there be a way to even that out a little?
Sidenote: I really like 1+ mentality about rooting and software, since I have to have a rooted phone, but this experience really soured my first impression. Plus their 1+5 is a major letdown to me. I don't think I'll purchase anymore 1+ products.
Feel free to correct any misinformation in my post.
I also have noticed when I try streaming, webpages or speedtests the little LTE+ carrier aggregation kicks in to combine band 4 and 12 and I get pretty good speeds. See screenshot
My speeds do definitely vary on Tmobiles network. Isn't an issue for me, everything streams fine, also i haven't had an issue with VOLTE since I got the phone in February..
I noticed when I'm in a roaming area, instead of roaming now, I completely lose service. I believe this is because I manually selected TMobile 4G as my operator instead of auto, which would allow the phone to jump to AT&T. Any ideas?
So still having problems, but only when traveling. If I have network operator on "auto" it'll select AT&T roaming, but then it'll just stick then and never switch back to TMobile, even in full strength band 4 or 12 areas. I have to reboot, and toggle auto for it to grab a T-Mobile signal. Very irritating. This also kicks the phone off VoLTE, and I've yet to get it back. Not sure if this is TMobile or the phone's fault. Tried everything I can think of. Any ideas?
izzyfanto said:
So still having problems, but only when traveling. If I have network operator on "auto" it'll select AT&T roaming, but then it'll just stick then and never switch back to TMobile, even in full strength band 4 or 12 areas. I have to reboot, and toggle auto for it to grab a T-Mobile signal. Very irritating. This also kicks the phone off VoLTE, and I've yet to get it back. Not sure if this is TMobile or the phone's fault. Tried everything I can think of. Any ideas?
Click to expand...
Click to collapse
Get a new SIM card
Lancez said:
Get a new SIM card
Click to expand...
Click to collapse
Excuse my ignorance, but what would a new SIM accomplish, technically speaking that is?
FYI, my wife's HTC 10 does the same thing. That would make two bad SIMs unlikely?
izzyfanto said:
Excuse my ignorance, but what would a new SIM accomplish, technically speaking that is?
FYI, my wife's HTC 10 does the same thing. That would make two bad SIMs unlikely?
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Click to collapse
I've had same problem as yours, I went to T-Mobile store and told them what was going on. They switched my SIM card and problem fixed. I was told because my SIM was too old (4 years at least) that's why i was having such issue.
Lancez said:
Get a new SIM card
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Click to collapse
Lancez said:
I've had same problem as yours, I went to T-Mobile store and told them what was going on. They switched my SIM card and problem fixed. I was told because my SIM was too old (4 years at least) that's why i was having such issue.
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Click to collapse
Gotcha thanks, I'll give it a try! What's weird is our SIMs are only weeks old....
izzyfanto said:
Gotcha thanks, I'll give it a try! What's weird is our SIMs are only weeks old....
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Click to collapse
That's what I've been thru and got fixed. Hopefully it'll work for you too
New SIM, no change
This phone has the features I want, and T-Mobile has the speeds I want, but this is frustrating to be kicked to roaming and no VoLTE....
izzyfanto said:
New SIM, no change
This phone has the features I want, and T-Mobile has the speeds I want, but this is frustrating to be kicked to roaming and no VoLTE....
Click to expand...
Click to collapse
Sorry to hear that it didn't work out for you. I attached couple of screenshots just to show you that it's been working good for me after I switched SIM card.
Edit: have you tried to create a new APN instead of using the default APN?
Edit 2: I can show you my APN if you want
Sorry, must have not been clear. I can get LTE, just not automatically after going into a roaming area. It just sticks on AT&T roaming until I manually go back in and select TMobile 4G. The problem with that is when I do need roaming to work, it won't because I have TMobile 4G manually selected.
Another problem is that I can't get VoLTE to stay very long, in fact i haven't had it for a couple days, despite me being in a very strong LTE area.
I appreciate your help
Edit: yes, if I could see your APN that'd be great!
izzyfanto said:
Sorry, must have not been clear. I can get LTE, just not automatically after going into a roaming area. It just sticks on AT&T roaming until I manually go back in and select TMobile 4G. The problem with that is when I do need roaming to work, it won't because I have TMobile 4G manually selected.
Another problem is that I can't get VoLTE to stay very long, in fact i haven't had it for a couple days, despite me being in a very strong LTE area.
I appreciate your help
Edit: yes, if I could see your APN that'd be great!
Click to expand...
Click to collapse
Just create a new APN exactly as mine and see if it works
Hmm yeah that's the one I have too....
Btw, maybe I just needed to wait,, but VoLTE is working again, and it's reporting the correct IMEI (it wasn't before but TMobile told me that wasn't a big deal...I beg to differ because now my TMobile app is working whereas before it wasn't) Fingers crossed the new SIM did the trick! I'll know tomorrow when I commute to work and it starts roaming whether it'll reacquire T-Mobile and VoLTE
Quick update: I definitely have noticed an improvement in jumping off AT&T roaming back onto TMobile LTE. AND VoLTE is now sticking. But... I'm inclined to think it's something related to me not having my second Verizon SIM in. I have a company work number on a Verizon SIM that enables me to text and call from that number. Obviously data doesn't work but that doesn't bother me since I have TMobile unlimited on my personal SIM. When I insert my Verizon SIM in the second slot, my IMEI number changes in the testing menu, but not my settings info! What the heck? The IMEI number identifies the phone and shouldn't change...I thought? Very confused why part of my phone retains the correct IMEI and the testing changes. I instantly lose VoLTE and my TMobile app fails to authenticate.
What is going on???
UPDATE:
I popped my Verizon SIM in again (slot 1) and it's reporting the xx...15 IMEI (correct one on my T-Mobile account) and the T-Mobile SIM (slot 2) then drops to xx...07! I'm so confused! I thought the IMEI is NOT supposed to change because it identifies the device?? The ICCID is the SIM number? Why is Verizon SIM screwing this up?

International S8 (SM-950FD) On Verizon

Hey guys,
I bought the G950FD on eBay so that I could root and tweak it the way I always have with my previous phones. I use total wireless which is on Verizon towers and have gotten the phone to connect just like it should, text, receive/make calls, and use data. To do this, I used the Flashable CSC Collection here to switch the CSC to VZW and it worked for a while, but after restarting I started to get some problems that I can't sort out.
1. Calls do not work anymore - I can't make or receive them at all. Dialing a number just says "Dialing" with some zeros below it, and calling my number goes right to voicemail.​2. Data cuts out sometimes and shows no signal. Recently, I tried to search for carriers and reconnect to Verizon but now I can't get a connection at all without restoring a backup.​3. Other observations: Using a signal info app, it seems like I only see band 1 and it is usually very slow. CDMA obviously doesn't work, so maybe that's why I can't register on the network anymore, but why did it work when I first booted up? I can't change the APN settings after switching to VZW CSC and also can't see an option for VoLTE, but that must be working right? Only some ROMs seem to work with the VZW CSC and allow me to connect to the cell towers. Changing the network mode does not do anything and just reverts back to 2G, which doesn't make sense because 2G shouldn't be possible. None of the codes that can be entered into the dialer to run the activities have worked or helped at all. When connected to WiFi, the no signal bar shows 4G connectivity and the signal bars reappear but I am still not connected.​
So, what can I try and does anyone have knowledge to share about cell towers, SIMs, registering on the network, or anything else relevant to my situation? I am completely stumped and would love any input that you guys could give me and future 950FD owners who might have this issue.
I'm looking forward to hearing what you guys know,
Joe
Only verizon phones work on verizon, you can't use a non-verizon phone on its network even if its supports its frequencies. Lte on your s8 is compatible with verizon's but after it worked for a bit they disabled your imei from their network, nothing you can do about it.
peachpuff said:
Only verizon phones work on verizon, you can't use a non-verizon phone on its network even if its supports its frequencies. Lte on your s8 is compatible with verizon's but after it worked for a bit they disabled your imei from their network, nothing you can do about it.
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Thanks for the reply! I do not think they have blocked my IMEI because I just restored a backup and everything works again. I believe it has something to do with the settings on my phone or possibly a bug with Android/changing the CSC because changing the network settings cause crashes, disconnects, and other weird behavior.
peachpuff said:
Only verizon phones work on verizon, you can't use a non-verizon phone on its network even if its supports its frequencies. Lte on your s8 is compatible with verizon's but after it worked for a bit they disabled your imei from their network, nothing you can do about it.
Click to expand...
Click to collapse
Lol don't give misinformation, they don't do this, in fact I'm pretty sure forcing all users to have phones obtained through Verizon would be completely illegal for a Telco to do. VZW doesn't even know what type of phone you have unless you register it and even if you do they don't care.

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