Moto XT1575 unlocked, trying to hook it up w/Sprint; HELP! - X Style (Pure) Q&A, Help & Troubleshooting

Ok just received my Moto Pure edition. Got a new Sprint Sim card. Call tech support, on their end everything is good.
I get LTE but no voice or data. I even updated the prl & device configuration.
The ohone keeps asking for an Android update, so I update it, but tells me theres is an update available still.
Is my phone bad, or its just a pain for an unlocked phone..
My phone is on 6.0, and did a factory reset, nothing..
Can someone help, mahbe it's my apn settings that is nowhere to be found..
Thanks a million
Sent from my Portable

*#*#72786#*#*
try that... that will reset the network settings, reprogram it and should reactivate the calling.
usually that happens when the network sets up but isnt programed into the phone. that simcard is just for LTE purposes but sprint is CDMA which works without simcards only using EVDO and 1X

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

Nexus 6P: Calling Issues — Cannot Make Calls, but Data/Texting Works (Verizon)

Hello,
I recently upgraded my Huawei Nexus 6P to 6.0.1 (dirty-flash, sideloaded).
I had trouble getting LTE to work at first (turning on/off Airplane Mode makes LTE work). I kept trying to change Field Test settings to make LTE work.
However, when I factory reset it the phone won't make or receive phone calls.
It sticks on "dialing..." and it just won't work. However, data and messaging work just fine.
I forgot to back up my EFS partition so it's partially my fault.
My IMEI number and MEID show correctly, however on the My Verizon website it shows a different MEID that's nothing close to the original one. The last 2 digits were different. Neither the MEID or IMEI were changed during the upgrade process, so it should have worked fine.
I recently called Verizon Tech Support about this and they said they'd change the MEID within 72 hours to 4 days. (I called Friday evening)
They kept having issues with the server rejecting the MEID and I checked, it's not blacklisted. They told me about a "wrong form" being filled out and ran some tests and nothing worked.
The phone MEID and Field Test menus showed properly though, just calling any other number (even Verizon's activation number) won't work.
I kept factory resetting, even downgraded to 6.0 (clean flash with recovery/radios, unrooting and all that), and LTE worked better, but STILL no phone calls!
Whenever I try to activate it on the website, it keeps telling me to contact their number. I'm not sure if I'll need a new SIM card because I've tried another SIM card and will also not make calls.
I'm not sure if calling has to do with the MEID or IMEI or anything else.
Do you have any tips/suggestions to fix this annoying issue?
Thank you,
Exec360
I've seen the issue going from Wireless to LTE and vice versa but I have no issue making or receiving calls. Texting and MMS work ok also. I went from 6.0 to 6.1 by doing a factory image flash. Now I'm Chroma and I'm curious if I would have this same issue on Stock so I will probably flash factory or a slim rom stock tonight. I'm on Verizon and had a nexus 6, I popped the sim in my 6p and it activated with no issue.
rsalas187 said:
I'm on Verizon and had a nexus 6, I popped the sim in my 6p and it activated with no issue.
Click to expand...
Click to collapse
Same here, except I popped out the SIM from my iPhone 5S.
Ironically, when I put the same SIM back into the 5S, calling and voicemail, in addition to data worked, even though the device was recently deactivated from Verizon.
I'd say the issue probably comes up from a corrupted IMEI/MEID or other identifier. (Not completely sure about this though — the IMEI/MEID was the same between popping in the SIM for the first time and after resetting...)
Verizon detected my device as a Huawei 1511 phone and thinks it's an old Samsung feature phone when I run it through support/help pages.
I have the exact same problem with my phone and I don't know what to do.
update: I just flashed the efs backup file and it worked again.
I forgot to back up my EFS partition and I had 2 chances to do so...
My IMEI, MEID and SIM ID show perfectly in the About section, even when factory reset and bootloader locked, but calls still don't work, very odd.
I used Wugfresh and just about every IMEI recovery tool I could find (EFS Professional) but it keeps giving me errors such as "Access Denied..." with BusyBox installed.
Still no email or response from Verizon techs tonight, expecting one tomorrow.
If not, I'll have to RMA.
More specifically, I cannot find an EFS folder or a nv_data.bin file in any file explorer — Root Explorer, Solid Explorer, TWRP, etc.
Alright, I've actually figured out that the problem is NOT the EFS after I sent it in to Verizon.
My IMEI and MEID number and everything else were actually just fine.
It wasn't flashing or anything that ruined my phone... I recently called Verizon one night on my phone about LTE issues on 6.0.1 and after that, the calls just stopped.
In fact, the problem IS on their end.
They gave me a new SIM card and it didn't work. They realized the phone was new on the network and that would cause incompatibility issues.
Now I have to ship my phone to their IT department which takes about 2 weeks.
If that is your case:
Verizon guide to getting your calling back:
First, I'd try flashing an old EFS backup when your phone was working. If that doesn't work, call their support number (1-800-922-0204) and select the tech support option or say it if it asks.
Give them your SIM card number to try activating the phone. If that doesn't work, you can still send in your phone — just ask them and a phone kit will ship.
Sending it in to the IT department will take around 1-2 weeks, so you should definitely have a backup phone or communication device on hand (you can also just use Google Voice from a PC which is a great temporary solution).
I'll say, BIG props to Verizon for giving us very good support.
Exec360 said:
Alright, I've actually figured out that the problem is NOT the EFS after I sent it in to Verizon.
My IMEI and MEID number and everything else were actually just fine.
It wasn't flashing or anything that ruined my phone... I recently called Verizon one night on my phone about LTE issues on 6.0.1 and after that, the calls just stopped.
In fact, the problem IS on their end.
They gave me a new SIM card and it didn't work. They realized the phone was new on the network and that would cause incompatibility issues.
Now I have to ship my phone to their IT department which takes about 2 weeks.
If that is your case:
Verizon guide to getting your calling back:
First, I'd try flashing an old EFS backup when your phone was working. If that doesn't work, call their support number (1-800-922-0204) and select the tech support option or say it if it asks.
Give them your SIM card number to try activating the phone. If that doesn't work, you can still send in your phone — just ask them and a phone kit will ship.
Sending it in to the IT department will take around 1-2 weeks, so you should definitely have a backup phone or communication device on hand (you can also just use Google Voice from a PC which is a great temporary solution).
I'll say, BIG props to Verizon for giving us very good support.
Click to expand...
Click to collapse
AN easier method is to use any Verizon phone with a microSIM and activate on their network.
Once the SIM is active, cut it down to a nanoSIM and put it into the Nexus 6P.
It just works. All this about sending your new phone to them for two weeks is crazy.
I pulled the SIM from my LG G3 and cut it. Up and running in minutes.
tech_head said:
AN easier method is to use any Verizon phone with a microSIM and activate on their network.
Once the SIM is active, cut it down to a nanoSIM and put it into the Nexus 6P.
It just works. All this about sending your new phone to them for two weeks is crazy.
I pulled the SIM from my LG G3 and cut it. Up and running in minutes.
Click to expand...
Click to collapse
Unfortunately, my other phone does not have a microSIM. NanoSIMs usually work with LTE connections.
Trimming a microSIM is dangerous and could actually damage your SIM card tray and your phone.
Thank you for the advice, but I should warn you taking that risk may actually damage or cause issues with the SIM card itself such as not being able to read its SIM card number.
EDIT:
After 5 days, 3 factory resets, and many flashes of the older radio, it has been SOLVED!!!!!
First, try disabling, reinstalling the factory version of Google Connectivity Services, then updating it in the Google Play Store.
Next, dial *#*#4636#*#* on your phone application to get to field test mode. This function will work no matter whether the phone is working or not — it's just an information screen.
Click the 3 dots and select "change radio band". Select Radio Band 6, NOT USA or Radio Band 7 — Verizon told me to try both of those and they are glitchy.
Source: "Attaching 2 screenshots. One with band 6 where calling works but data is 1x. Another with USA band where LTE data works but no calling. Looking closely it's set to emergency calls only." (http://forum.xda-developers.com/showpost.php?p=64149076&postcount=8)
Now my GSM service is working and calls work extremely well!
Glad it had nothing to do with EFS/IMEI numbers after all.
Make sure to set your APN to "VZWINTERNET" if it hasn't been set already.
I'm glad I can share this with XDADevelopers so that they can benefit from this information.
- Exec360
Exec360 said:
EDIT:
After 5 days, 3 factory resets, and many flashes of the older radio, it has been SOLVED!!!!!
First, try disabling, reinstalling the factory version of Google Connectivity Services, then updating it in the Google Play Store.
Next, dial *#*#4636#*#* on your phone application to get to field test mode. This function will work no matter whether the phone is working or not — it's just an information screen.
Click the 3 dots and select "change radio band". Select Radio Band 6, NOT USA or Radio Band 7 — Verizon told me to try both of those and they are glitchy.
Source: "Attaching 2 screenshots. One with band 6 where calling works but data is 1x. Another with USA band where LTE data works but no calling. Looking closely it's set to emergency calls only." (http://forum.xda-developers.com/showpost.php?p=64149076&postcount=8)
Now my GSM service is working and calls work extremely well!
Glad it had nothing to do with EFS/IMEI numbers after all.
Make sure to set your APN to "VZWINTERNET" if it hasn't been set already.
I'm glad I can share this with XDADevelopers so that they can benefit from this information.
- Exec360
Click to expand...
Click to collapse
I have the same issue with model h1511 and i bought the phone from Ebay but im living in Qatar .. i dunno what to do .. LTE data connection working fine .. sending and receiving sms is working ok .. only I can't make or receive calls. i'm not sure to whom I should report this issue
Exec360 said:
EDIT:
After 5 days, 3 factory resets, and many flashes of the older radio, it has been SOLVED!!!!!
First, try disabling, reinstalling the factory version of Google Connectivity Services, then updating it in the Google Play Store.
Next, dial *#*#4636#*#* on your phone application to get to field test mode. This function will work no matter whether the phone is working or not — it's just an information screen.
Click the 3 dots and select "change radio band". Select Radio Band 6, NOT USA or Radio Band 7 — Verizon told me to try both of those and they are glitchy.
Source: "Attaching 2 screenshots. One with band 6 where calling works but data is 1x. Another with USA band where LTE data works but no calling. Looking closely it's set to emergency calls only." (http://forum.xda-developers.com/showpost.php?p=64149076&postcount=8)
Now my GSM service is working and calls work extremely well!
Glad it had nothing to do with EFS/IMEI numbers after all.
Make sure to set your APN to "VZWINTERNET" if it hasn't been set already.
I'm glad I can share this with XDADevelopers so that they can benefit from this information.
- Exec360
Click to expand...
Click to collapse
Where was this thread yesterday when I needed it...lol I was messing with my radios and screwed my phone up. Please not this method may not work on a custom ROM I had to flash back to 6.0.0.
Exec360 said:
EDIT:
After 5 days, 3 factory resets, and many flashes of the older radio, it has been SOLVED!!!!!
First, try disabling, reinstalling the factory version of Google Connectivity Services, then updating it in the Google Play Store.
Next, dial *#*#4636#*#* on your phone application to get to field test mode. This function will work no matter whether the phone is working or not — it's just an information screen.
Click the 3 dots and select "change radio band". Select Radio Band 6, NOT USA or Radio Band 7 — Verizon told me to try both of those and they are glitchy.
Source: "Attaching 2 screenshots. One with band 6 where calling works but data is 1x. Another with USA band where LTE data works but no calling. Looking closely it's set to emergency calls only." (http://forum.xda-developers.com/showpost.php?p=64149076&postcount=8)
Now my GSM service is working and calls work extremely well!
Glad it had nothing to do with EFS/IMEI numbers after all.
Make sure to set your APN to "VZWINTERNET" if it hasn't been set already.
I'm glad I can share this with XDADevelopers so that they can benefit from this information.
- Exec360
Click to expand...
Click to collapse
I have the same issue but I live in Qatar. the thing is that my phone has the exact same issue urs. im glad you could solve it. Can you help me solve mine ??
mohawahba said:
I have the same issue but I live in Qatar. the thing is that my phone has the exact same issue urs. im glad you could solve it. Can you help me solve mine ??
Click to expand...
Click to collapse
In the US, all carriers are supported for Nexus 6P use. Since you live in Qatar, you may have a different carrier.
Here are a few other points or solutions for this issue:
If your carrier is not Verizon, does your carrier whitelist the Nexus 6P or only phones sold through them?
Do you get an IMEI number in the Settings application? (don't put it here for privacy reasons) If you don't, then your issue most likely has to do with accidentally deleting or modifying the EFS partition. Try restoring an EFS backup. ALWAYS back up your EFS before you install something else or root your phone — and keep it in a safe location! Alas, that was not the case for me.
Have you tried turning Roaming on inside your cellular network settings or have a specific roaming plan?
Do you get decent reception when making calls in Qatar? Where do you have this issue most, indoors or outdoors? You should get 1x at least.
Try the field test mode (*#*#4636#*#*) in the phone application. Go to "phone info".
If you see "GSM service: emergency calls only" on Verizon, the GSM band is not connected which makes phone calls. Switch to Band 6.
Otherwise, if you see the same thing for GPRS, try switching to another band. I'm not familiar with carriers except Verizon or other US carriers (AT&T, T-mobile, etc.)
I've emphasized this a lot, but try a factory reset. Lock the bootloader and remove your custom mods to the system. It may just work for you.
The case may be that the phone service does not work in Qatar, your reception is weak, or you have a specific phone plan. It may be your carrier not being compatible with certain bands, like GSM.
If that is the case, try calling their support and ask them for any possible solutions to the problem.
EDIT:
You also stated that you bought your 6P from Ebay. Many risks can come from buying used phones off of there rather than the official websites. It's likely that someone messed with the EFS and IMEI numbers.
It could be a stolen phone too... in those cases, it would be illegal (in some countries, not sure if in Qatar) to change the IMEI number unless you have an EFS backup. Sorry, you may just be out of luck. Try another solution like Google Voice or Skype (paid) for now until you get it fixed.
Thx bro
---------- Post added at 01:13 AM ---------- Previous post was at 01:10 AM ----------
Exec360 said:
In the US, all carriers are supported for Nexus 6P use. Since you live in Qatar, you may have a different carrier.
Here are a few other points or solutions for this issue:
If your carrier is not Verizon, does your carrier whitelist the Nexus 6P or only phones sold through them?
Do you get an IMEI number in the Settings application? (don't put it here for privacy reasons) If you don't, then your issue most likely has to do with accidentally deleting or modifying the EFS partition. Try restoring an EFS backup. ALWAYS back up your EFS before you install something else or root your phone — and keep it in a safe location! Alas, that was not the case for me.
Have you tried turning Roaming on inside your cellular network settings or have a specific roaming plan?
Do you get decent reception when making calls in Qatar? Where do you have this issue most, indoors or outdoors? You should get 1x at least.
Try the field test mode (*#*#4636#*#*) in the phone application. Go to "phone info".
If you see "GSM service: emergency calls only" on Verizon, the GSM band is not connected which makes phone calls. Switch to Band 6.
Otherwise, if you see the same thing for GPRS, try switching to another band. I'm not familiar with carriers except Verizon or other US carriers (AT&T, T-mobile, etc.)
I've emphasized this a lot, but try a factory reset. Lock the bootloader and remove your custom mods to the system. It may just work for you.
The case may be that the phone service does not work in Qatar, your reception is weak, or you have a specific phone plan. It may be your carrier not being compatible with certain bands, like GSM.
If that is the case, try calling their support and ask them for any possible solutions to the problem.
EDIT:
You also stated that you bought your 6P from Ebay. Many risks can come from buying used phones off of there rather than the official websites. It's likely that someone messed with the EFS and IMEI numbers.
It could be a stolen phone too... in those cases, it would be illegal (in some countries, not sure if in Qatar) to change the IMEI number unless you have an EFS backup. Sorry, you may just be out of luck. Try another solution like Google Voice or Skype (paid) for now until you get it fixed.
Click to expand...
Click to collapse
Here in qatar, i have one friend having the same fone from amazon and it is working fine. Here no CDMA plus texting and data are working. If the efs is corrupt or as u say screwed, it would work data and text? Band USA and 6 re ok with data and text.. Band 7 dead.
In general, it may corrupt the phone function but texts/data may work fine.
Most carrier connectivity issues usually come up from a corrupt EFS or the service not being activated on your plan.
http://forums.androidcentral.com/ask-question/423732-understanding-cwm-backups-efs-partition-etc.html
For you, it seems like Band 6 is the correct one. No CDMA — and GSM is working again. Good job
Another method to try:
Update the Preferred Roaming List (PRL) - dial *228 on the phone app or figure out your carrier's PRL update number
That might work, didn't affect my calls since I don't use roaming services.
By "Band 7 dead", do you mean that the service just won't connect? My issue came from messing with the bands to fix the LTE issue and messing up my phone.
Try to call your carrier's support — try getting a new SIM card or collect information about the Nexus 6P compatibility, if they don't have it on their website.
Was the phone working since you first used it? Have you rooted or done any system-level modifications to it? Also is your carrier Verizon, because I don't think they have strong roaming service in Qatar... I am in the USA right now using Band 6, working fine.
https://community.verizonwireless.com/thread/494218
When you dial, do you get "Dialing..." and just have to wait until it hangs up, or is there static, or a carrier message? Does your friend have the same carrier (Verizon) as you do?
Sorry I'm asking so many questions. I just can't quite identify your issue very well.
Exec360 said:
In general, it may corrupt the phone function but texts/data may work fine.
Most carrier connectivity issues usually come up from a corrupt EFS or the service not being activated on your plan.
http://forums.androidcentral.com/ask-question/423732-understanding-cwm-backups-efs-partition-etc.html
For you, it seems like Band 6 is the correct one. No CDMA — and GSM is working again. Good job
Another method to try:
Update the Preferred Roaming List (PRL) - dial *228 on the phone app or figure out your carrier's PRL update number
That might work, didn't affect my calls since I don't use roaming services.
By "Band 7 dead", do you mean that the service just won't connect? My issue came from messing with the bands to fix the LTE issue and messing up my phone.
Try to call your carrier's support — try getting a new SIM card or collect information about the Nexus 6P compatibility, if they don't have it on their website.
Was the phone working since you first used it? Have you rooted or done any system-level modifications to it? Also is your carrier Verizon, because I don't think they have strong roaming service in Qatar... I am in the USA right now using Band 6, working fine.
https://community.verizonwireless.com/thread/494218
When you dial, do you get "Dialing..." and just have to wait until it hangs up, or is there static, or a carrier message? Does your friend have the same carrier (Verizon) as you do?
Sorry I'm asking so many questions. I just can't quite identify your issue very well.
Click to expand...
Click to collapse
Thanks for exerting all kind of possible solutions . really appreciated ... I ll explain next everything ..
First of all I'm no verizon subscriber .. I just got the phone from ebay shipped to qatar .. that's all international buyer ..
well secondly, the service is activated. here is different than yours in activation process. Plus my sim card is working on all other devices, opo, op2, opx, mi redmi n2, moto g ...
I believe the problem remains in the piece I have now (nexus 6p) because im used to buy phones from the US and they work fine expect some missing LTE bands that does not really interfere with calling service.
If the EFS/IMEI is corrupt, will it register on the network normally? will data and text still work?
Band 7 dead means no text no data and surely no calls ... plus when I chose it, i always get called ended right after i press Dial a number
experience with other bands:
band USA: text and data working fine ... calls: when dialing, it keeps dialing until the network fails and returns again like reconnect (the bars disappear and return again) and when i hang up, it respond quickly and execute the action but on,
Band 6: text ok data ok , calls no .. but when dialing, it keeps dialing normally till it gives me (call ended ) and if I try to hang up after few seconds, it freezes the phone for like 10 seconds till it execute the action of hanging up ...
so the USA band is the most responsive band in terms of hanging up ..
when I dial *#4636 .... , and access phone information to change preferred network, it is usually set to LTE/CDMA/GSM (PRL) >> if i try to change it to LTE/GSM (PRL) because no CDMA here, it usually return to the default after restarting the phone .. it does not really change the network if, for example, I choose GSM only .. I still see LTE on the bar .. moreover, when i try to choose 2g from cellular networks from settings, it does not reflect and I still get LTE working .. weird ..
** in all cases, FYI, I always see the carrier name in the top left corner of the screen.
*228 does not work as Im not verizon .. plus any USSDs are not going through as it gives error "connection problem or invalid MMI code"
when I try to access caller ID, it gives error " network or SIM card error".
I tried to call the carrier but they could not do anything. I'm still expecting a call from their back office team who ( i assume ) has more experience
getting a new sim would not help because I have tried different active sims different numbers and I also tried the second carrier here in Qatar (vodafone) and the problem persist.
the fone never worked since i reached Qatar. It was not rooted. I only unlocked BL and flashed the first factory stock rom (fully including the radio), yet nothing
wait wait please don't lose hope
one friend here is also giving me ideas and solutions to get over my isssue, he suggested i flash chroma rom bcz it has more bands. I will flash it and give a feedback.
I really appreciate your efforts and also his efforts @Soulfly3
pardon me if I wrote too many things and for giving all my trials not in order
Thanks
Thanks everyone for helping me resolve my issue. biggest thanks goes to @@scoobysnack who helped me greatly to get over it.
Installing Chroma ROM solved the issue because basically it was a problem of bands. Chroma had more bands that work in Qatar. and I could return back to stock rom again without any problems ( but don't mess up with bands in phone information )
Thanks @Exec360 for offering me your great support >>>
I told you chroma would solve your problems. it has different bands to select and I figured the "AUS" bands would work.
Any advice for those of us operating on Verizon's extended network? I'm using my device on the Appalachian wireless network (with whom Verizon has a network sharing agreement as part of it's LTE in Rural America program), and I'm constantly getting the roaming indicator, even though I know I'm not roaming. I've never dealt with this on any other device, and I've used 4 different devices encompassing both Windows Phone and Android. If I switch the CDMA roaming indicator to "Home", the roaming indicator disappears and the usual LTE indicator appears, but I'm unable to make voice calls. If I switch the roaming indicator to "Automatic", I can make voice calls but the roaming indicator returns and the device tells me I'm roaming inside the test menu, even though Verizon tells me I'm not incurring roaming charges. If that's true, then the roaming indicator is just an annoyance, but it's there constantly (even when on WiFi) and for me it's a significant annoyance. Is there anything I can do, or is this just something I'm going to have to live with?

G935U firmware with Verizon MVNO

Hi guys,
I bought the unlocked firmware phone back in December 2016. The phone is great, the problem is I am using EcoMobile MVNO. It's refusing to recognize the network with the MVNO's sim card. I've spent hours on the phone with them and they claim all is OK on their (and Verizon's) end.
The phone sort of works, so I've just been grinning and bearing it so far. Using 4G switcher, I can put it in CDMA only mode, in which case it connects to '123456' and I can receive and make calls, and receive texts, but have no internet. If I put it in full LTE/GSM/CDMA auto mode, it connects to LTE, so I have internet, but it claims I'm not connected to Verizon network and in fact it's not available. So in this mode I can't receive calls or texts. Can't send texts under any mode. I've done a full factory reset at the MVNO's behest, of course that did nothing. The phone seems to connect fine to Verizon's network if I borrow someone elses's Verizon sim. My MVNO sim also works in my wife's iPhone5 without a problem. So it really seems to come down to the firmware on the phone. I'm holding out against hope that when Nougat comes to the G935U firmware, this problem is magically solved... but just in case decided to post here.
Please help, any ideas would be appreciated.
-Frustrated G7E user
galaxy7user said:
Hi guys,
I bought the unlocked firmware phone back in December 2016. The phone is great, the problem is I am using EcoMobile MVNO. It's refusing to recognize the network with the MVNO's sim card. I've spent hours on the phone with them and they claim all is OK on their (and Verizon's) end.
The phone sort of works, so I've just been grinning and bearing it so far. Using 4G switcher, I can put it in CDMA only mode, in which case it connects to '123456' and I can receive and make calls, and receive texts, but have no internet. If I put it in full LTE/GSM/CDMA auto mode, it connects to LTE, so I have internet, but it claims I'm not connected to Verizon network and in fact it's not available. So in this mode I can't receive calls or texts. Can't send texts under any mode. I've done a full factory reset at the MVNO's behest, of course that did nothing. The phone seems to connect fine to Verizon's network if I borrow someone elses's Verizon sim. My MVNO sim also works in my wife's iPhone5 without a problem. So it really seems to come down to the firmware on the phone. I'm holding out against hope that when Nougat comes to the G935U firmware, this problem is magically solved... but just in case decided to post here.
Please help, any ideas would be appreciated.
-Frustrated G7E user
Click to expand...
Click to collapse
Flash the vzw firmware or go through the steps for the hybrid rom with vzw modems implemented.
Thanks. I was really hoping for something less intrusive, maybe some CSC edit fix, or some such.
galaxy7user said:
Thanks. I was really hoping for something less intrusive, maybe some CSC edit fix, or some such.
Click to expand...
Click to collapse
Welp, the 7.0 update is here, and it didn't fix my issue, in fact now I can't even get LTE data as I used to get. :crying:
So I had this issue when I first got the nougat update. When I got my S7 I put in my brothers sim card to made sure it worked on Verizon cause i was buying it from someome and anyway I activated my straight talk verizon SIM and everything was great until I got the update and my service was weird and I didn't know what to do and then it dawned on me, I put in an actual verizon SIM card, doesn't need to be active let it register and then put your SIM back in and everything was great! Hope this helps...
Switched to TotalWireless, phone works now. They first sent me a SIM which didn't work, then had to send a different, post-paid one.
I now suspect if ECO also sent me a postpaid based SIM it would start working. Things are always way too complicated when Verizon is involved.
S7 U with Verizon MVNO
skater95 said:
So I had this issue when I first got the nougat update. When I got my S7 I put in my brothers sim card to made sure it worked on Verizon cause i was buying it from someome and anyway I activated my straight talk verizon SIM and everything was great until I got the update and my service was weird and I didn't know what to do and then it dawned on me, I put in an actual verizon SIM card, doesn't need to be active let it register and then put your SIM back in and everything was great! Hope this helps...
Click to expand...
Click to collapse
I'm tempted to try this as I'm having the same problem with my 935U and Xfinity Mobile (Verizon MVNO) SIM, instead of connecting to the Verizon network, it connects to network 123456. I did load the 935V firmware, which worked fine, but I'd prefer to return to the U firmware if this would work. Is this still working for you, and if so, do you just need to put the regular verizon sim in once and from then on the MVNO sim will work, and continue to work including after a reboot?
ralrdz said:
I'm tempted to try this as I'm having the same problem with my 935U and Xfinity Mobile (Verizon MVNO) SIM, instead of connecting to the Verizon network, it connects to network 123456. I did load the 935V firmware, which worked fine, but I'd prefer to return to the U firmware if this would work. Is this still working for you, and if so, do you just need to put the regular verizon sim in once and from then on the MVNO sim will work, and continue to work including after a reboot?
Click to expand...
Click to collapse
I put in a Verizon SIM in it once and that was after the nougat update. But every time the phone restarts, I have to make a phone call for it to connect to the service or it will just stay stuck in "searching for service" but once the phone call connects, I hang up and everything works as it should.
skater95 said:
I put in a Verizon SIM in it once and that was after the nougat update. But every time the phone restarts, I have to make a phone call for it to connect to the service or it will just stay stuck in "searching for service" but once the phone call connects, I hang up and everything works as it should.
Click to expand...
Click to collapse
Thanks, strange problem. I'll probably just stick with the 935V firmware for now as that's working fine (just have the Verizon bloat and failing the hotspot check). I also have a dialog going with Samsung support to see if they're aware of the problem and have a fix.

Lost LTE on Verizon

Ok... I screwed up! There is a new Verizon tower near my house and I wanted to update my roaming, so I did the *228. Alas, by accident I chose option 1 (Program phone) instead of option 2 (Update roaming). Immediately after that I lost LTE. 3G is the best I now get.
I am running 7.1 latest update. Not rooted.
Suggestions on how to get LTE back up?
Thanks!
Zargone said:
Ok... I screwed up! There is a new Verizon tower near my house and I wanted to update my roaming, so I did the *228. Alas, by accident I chose option 1 (Program phone) instead of option 2 (Update roaming). Immediately after that I lost LTE. 3G is the best I now get.
I am running 7.1 latest update. Not rooted.
Suggestions on how to get LTE back up?
Thanks!
Click to expand...
Click to collapse
https://forum.xda-developers.com/showpost.php?p=74920423&postcount=506
That describes steps if I were using Oreo but alas, I am on Nougat. I will look for similar issues.
Thanks!
Tried the recommended steps. Worked for about an hour. Then back to 3G. THEN noticed I could not send a text message! GROAN...
Zargone said:
Tried the recommended steps. Worked for about an hour. Then back to 3G. THEN noticed I could not send a text message! GROAN...
Click to expand...
Click to collapse
Try this:
*#*#4636#*#*
Phone Information
Change Preferred network type to LTE/WCDMA
If after cycling your connectivity it doesn't pop onto the Verizon 4G network, reboot your phone, you should be good then.
I dont know what it is about that setting that is different, because Verizon doesnt support WCDMA, however this seems to select the correct type of LTE connectivity and you'll be in that. Be aware though, this will likely prevent 3G from working if you enter an area without good 4G coverage.
I have tried all recommendations. LTE works for a while then it is back to 3G. On a further note, when this happens I cannot send a text message but a reboot will solve the text message issue.
I am at a loss. It seems there is no way to make the settings accessed by *#*#4636#*#* STICK.
Zargone said:
I have tried all recommendations. LTE works for a while then it is back to 3G. On a further note, when this happens I cannot send a text message but a reboot will solve the text message issue.
I am at a loss. It seems there is no way to make the settings accessed by *#*#4636#*#* STICK.
Click to expand...
Click to collapse
It not just you. I have been frustrated for weeks. I thought it was only because I upgraded to 8.1 but your situation just answered that. I just ordered a new SIM from Verizon and wont run any programming once I install it. I contacted Essential on it as well as others. I hope the two can work this out.
Best option is a new some. *228 is usually no suggested on LTE unless you really know what you are doing. The PRL should be automatic on LTE.
get a new sim, your is borked now most likely
Will try new SIM tomorrow and let you know...
A VZW rep had me do *228 when I was having some issues with texting when I first got the phone. Fixed the texting issues but then I couldn't get LTE either. A new SIM fixed both issues I was having. *228 is apparently known to bork VZW LTE.
Had the same issues after using the *228 method I advise not using that at all been stuck on 3g since. Getting a new sim thursday hoping that helps (using straight talk Verizon Sim)
Here is a bit of information I have discovered. The phone is stable as long as I NEVER turn on WiFi! IF I have WiFi turned on (no connection to a network required) AND I enter a poor or non-existent service area, I loose service until I go back in with the *#*#4636#*#* and change settings back yet again!
anyone with a new sim got it working? Verizon shipped me one today and put it in. Avoided calling 228 but cannot get the sim to activate itself.
Got a SIM not provisioned error. I turned it off, took the SIM out and checked it, put it back, rebooted and still nothing. Not connecting to Verizon Network. Im afraid to call support because they will insist to call 228 to program it.
BTW the final version of 8.1 fixed all the Verizon weirdness I had going on. I popped it back in 'Global' in the Mobile Network settings (which is equivalent to 'LTE/CDMA/UMTS (PRL)' in the Phone Information section) and it hopped immediately on to Verizon, no kinda looking like sprint, no blank, no need to dial *228 for a new PRL it just worked. In fact on reboot it doesn't sit there with No Service scrolling across the screen for 15-20 seconds after boot, it shows up Verizon Wireless immediately.
wolfhelm said:
BTW the final version of 8.1 fixed all the Verizon weirdness I had going on. I popped it back in 'Global' in the Mobile Network settings (which is equivalent to 'LTE/CDMA/UMTS (PRL)' in the Phone Information section) and it hopped immediately on to Verizon, no kinda looking like sprint, no blank, no need to dial *228 for a new PRL it just worked. In fact on reboot it doesn't sit there with No Service scrolling across the screen for 15-20 seconds after boot, it shows up Verizon Wireless immediately.
Click to expand...
Click to collapse
That's good to hear I switched to an old straight talk TMobile sim I had while I wait for the replacement straight talk Verizon version hoping things go as smoothly for me when I pop it in
wolfhelm said:
BTW the final version of 8.1 fixed all the Verizon weirdness I had going on. I popped it back in 'Global' in the Mobile Network settings (which is equivalent to 'LTE/CDMA/UMTS (PRL)' in the Phone Information section) and it hopped immediately on to Verizon, no kinda looking like sprint, no blank, no need to dial *228 for a new PRL it just worked. In fact on reboot it doesn't sit there with No Service scrolling across the screen for 15-20 seconds after boot, it shows up Verizon Wireless immediately.
Click to expand...
Click to collapse
Very frustrating for me. This is my only concern with this phone . Im still stuck in 3G after doing the upgrade, hard reset, and popping in a new SIM without dailing 228. I will change my Mobile Netwok settings to yours above.
Bigdny said:
Very frustrating for me. This is my only concern with this phone . Im still stuck in 3G after doing the upgrade, hard reset, and popping in a new SIM without dailing 228. I will change my Mobile Netwok settings to yours above.
Click to expand...
Click to collapse
May you should try reinserting your sim my phone self corrected once my update was done.
Here are my results:
Installed new SIM - same issue
Did a network data settings reset
Verizon did a flush and reinitialize of my account.
Still same result.
Don't know exactly how or why but about 10 mins later I noticed my phone was OFF.
I powered back up and MOST issues we're gone.
The final fix was to go into developer options and turn on "cellular data always active"
Working great on LTE+
Bigdny said:
Very frustrating for me. This is my only concern with this phone . Im still stuck in 3G after doing the upgrade, hard reset, and popping in a new SIM without dailing 228. I will change my Mobile Netwok settings to yours above.
Click to expand...
Click to collapse
Try putting it in "4G/LTE", wait for it to connect, then back to Global.
After I posted my above message, I did go mucking around in the settings and got it stuck in 3G (even after reboots, etc), then corrected it by doing this.
And quick clarification for the post above this one, it is "Mobile Data Always Active", mine was already on and I never modified it, so that must be the default.

AT&T LG G6 Keeps Hanging Up

No idea why this started happening but every time I try to make a phone call, it'll hang up immediately. Checked all the settings and nothing has been changed or altered. However, I am still able to access the internet and send text messages. When I try to check my remaining voice and data by entering *777*1#, it'll say, "Connection problem or invalid MMI". It just doesn't make any sense. Contacted Airvoice Wireless and have yet to hear back from them. Has this ever happened to anyone else?
It must be a whitelisted model if it's running on AT&T's network. 4G VoLTE must be enable in hidden settings as well. A new sim card may be needed. AT&T stopped supporting 3G altogether.
Model whitelist (more may have been added since this doc release):
blackhawk said:
It must be a whitelisted model if it's running on AT&T's network. 4G VoLTE must be enable in hidden settings as well. A new sim card may be needed. AT&T stopped supporting 3G altogether.
Model whitelist (more may have been added since this doc release):
Click to expand...
Click to collapse
Yeah. My phone's model is whitelisted. I have the H871 variant of the LG G6. After doing some research, it would seem I need a new SIM card (as you mentioned). Nothing I have tried has worked so far. I even went as far as factory resetting my phone. And of course, it did not fix the issue. It's the SIM card. I did access the hidden settings but didn't really pay much attention to the 4G settings. I'm going to go back to that and take a closer look at those options. If there's a VoLTE option, that might do the trick.
Gurren Lagann said:
Yeah. My phone's model is whitelisted. I have the H871 variant of the LG G6. After doing some research, it would seem I need a new SIM card (as you mentioned). Nothing I have tried has worked so far. I even went as far as factory resetting my phone. And of course, it did not fix the issue. It's the SIM card. I did access the hidden settings but didn't really pay much attention to the 4G settings. I'm going to go back to that and take a closer look at those options. If there's a VoLTE option, that might do the trick.
Click to expand...
Click to collapse
That's the problem if it was running on 3G. My Note was running on 4G VoLTE when I got it so the sim card and settings were correct.
4G VoLTE must be enabled.
AT&T advanced tech support can probably help you. May take more than one call to get someone that knows what they've doing though.
blackhawk said:
That's the problem if it was running on 3G. My Note was running on 4G VoLTE when I got it so the sim card and settings were correct.
4G VoLTE must be enabled.
AT&T advanced tech support can probably help you. May take more than one call to get someone that knows what they've doing though.
Click to expand...
Click to collapse
I get my service from AirVoice wireless but have yet to hear back from them. What I found out by messing around in the secret menu is that when I choose WCDMA Preferred, everything works just fine. I can call, text, and access the internet. On that setting, 4G is displayed up top. What I found out was that any setting that displays 4G LTE will block my ability to make a phone call. If it says 4G, then I am fine. The problem with this is that everything will reset when I turn off my phone. So, it's pretty annoying having to set it every time. Is there any way to make my selection permanent?
Gurren Lagann said:
I get my service from AirVoice wireless but have yet to hear back from them. What I found out by messing around in the secret menu is that when I choose WCDMA Preferred, everything works just fine. I can call, text, and access the internet. On that setting, 4G is displayed up top. What I found out was that any setting that displays 4G LTE will block my ability to make a phone call. If it says 4G, then I am fine. The problem with this is that everything will reset when I turn off my phone. So, it's pretty annoying having to set it every time. Is there any way to make my selection permanent?
Click to expand...
Click to collapse
Not sure. The carrier may need to do a reset on their end.

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