Activate/Deactive VoLTE on SM-G935K - Samsung Galaxy S7 Edge Questions and Answers

So I bought the SM-G935K (unlocked 2nd hand) while I was studying abroad in Korea, since my old phone turned to a brick.
After returning to the United States, I returned to my mobile service provider, MintMobile (T-mobile MVNO) however I am having problem receiving and dialing calls, not sure if its my hardware problem or software problem (but watever finding a solution to that is another day another post).
While talking to Customer Service they keep asking if I have VoLTE on or off in the options, however, I simply can't seem to see or be able to change that option in my version of Android.
So masters of Android, how come I cannot seem to see that option along with preferred network options on my SM-G935K?

Related

Qtek 9100 not working on Florida T-mobile network

Hi all,
I hope this argument has not been already discussed. Because all the keyword related to this specific problem are very general, I'm having an hard time searching for related posts...
I have a Qtek 9100 (not branded and never locked to any company) that I used successfully with all the Italian mobile companies. I moved to Florida couple of month ago, and my Vodafone SIM has been working fine in roaming.
Because roaming is not cheap at all , I just bought a t-mobile SIM card. But when I insert it the phone says "Waiting for connection" forever. If I try to select the network manually, the only available one is "cingular".
I also bought an At&T SIM, that according to AT&T and T-Mobile customer services, should have exactly the same technology for GSM connection, and so my phone should work either on both or none...). Strange enough, it works perfectly with the At&T.
However, I would like to use T-Mobile, as it is much cheaper for the type of service I need.
Can anyone help me? Do you think it can be related to the GSM firmware?
Thanks
Giacomo
Did you try flashing a stock t-mobile ROM to it?

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?

my g900f recognises my network but won't connect to it

this g900f was bought through orange (my old carrier) ran on touchwiz lolipop edition with some crappy apps from orange that i could not delete (android 5).
then i move to another carrier named hot mobile (a well known mobile carrier in my country) but for some reason my g900f wasn't able to connect to the network, i was able to do everything else, except making and receiving calls..
so i root and installed twrp and then flashed cm13&gapps but still i'm unable to make and receive calls.
right now on the lockscreen it says "Hot Mobile (my new carrier) - Emergency calls only"...
when i'm searching for networks it only shows me orange and others, but there is no hot mobile (the one i need) there...
do you think this g900f is simlocked ?
and i know for sure this phone supports this carrier cause my father has the same one, and its working for him.
do u have any idea on how to fix it ?!
bw since i rooted this guy calling orange for help is not an option...
please help ?!
Maybe this app can shed some light on your sim lock status. https://play.google.com/store/apps/details?id=com.spocky.galaxsimunlock but it's most likely your phone is locked to orange. I've used phones in the past which were sim locked and they show the new carrier but only give emergency coverage. Here in the UK orange lock there phones to the network. Not sure why rooting would stop you contacting orange but usually you would need to contact orange BEFORE changing carriers to unlock device. Maybe that app can help unlock too? Not sure though...

Won't work with a non-US SIM?

I've been banging my head against the wall all day with this one and am pretty close to throwing my 6P out the window of the place I'm staying right now
My 6P is normally on the Verizon network, but I'm traveling to Italy for a bit so I grabbed a local carrier's SIM (TIM, doubt it matters), and my 6P refuses to connect to their mobile network - as in, no signal ever, emergency calls only. I put the same SIM in my friend's iPhone here and it works fine. I also put it in an LG G4 here and it was at least able to pick up a signal.
Here's what I've tried so far, unsuccessfully of course:
* "Reset network settings"
* Selected TIM in the network provider screen. I get the extremely unhelpful "No Service: Selected Network (I TIM) is unavailable" and "try again later"
* Selected Automatic in the network provider screen.
* Switched between 2G/3G/4G for the above two steps.
* Changing network bands in *#*#4636#*#*
* After doing more research on the bands problem, resetting them via the advice I found here and more importantly, here - I changed it back to Automatic band selection. Tried Euro too for fun, and it didn't work either.
* Factory reset on the latest 6.0.1 build
* Flashed N preview, did a factory reset
I know for a fact that the 6P supports the correct bands via this Wikipedia page. I took a quick look at the logcat and didn't see anything interesting, if anyone thinks it would be useful I can post it here.
What gives? Is my device hosed? Anyone have other ideas on what to try? Thanks!
kd- said:
I've been banging my head against the wall all day with this one and am pretty close to throwing my 6P out the window of the place I'm staying right now
My 6P is normally on the Verizon network, but I'm traveling to Italy for a bit so I grabbed a local carrier's SIM (TIM, doubt it matters), and my 6P refuses to connect to their mobile network - as in, no signal ever, emergency calls only. I put the same SIM in my friend's iPhone here and it works fine. I also put it in an LG G4 here and it was at least able to pick up a signal.
Here's what I've tried so far, unsuccessfully of course:
* "Reset network settings"
* Selected TIM in the network provider screen. I get the extremely unhelpful "No Service: Selected Network (I TIM) is unavailable" and "try again later"
* Selected Automatic in the network provider screen.
* Switched between 2G/3G/4G for the above two steps.
* Changing network bands in *#*#4636#*#*
* After doing more research on the bands problem, resetting them via the advice I found here and more importantly, here - I changed it back to Automatic band selection. Tried Euro too for fun, and it didn't work either.
* Factory reset on the latest 6.0.1 build
* Flashed N preview, did a factory reset
I know for a fact that the 6P supports the correct bands via this Wikipedia page. I took a quick look at the logcat and didn't see anything interesting, if anyone thinks it would be useful I can post it here.
What gives? Is my device hosed? Anyone have other ideas on what to try? Thanks!
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Click to collapse
I’m not sure about Italy but our n6p will work with non-US Sim. I just got back from China and Hong Kong and was using my USA Project Fi and two local carriers (3 and China Mobile) without any problems. Your issues may be carrier base. I did have some drop calls with the carrier 3 in Hong Kong and the set up with 3 was not as easy as China Mobile. I had the carrier 3 Sim installed at the carrier 3 store. But China Mobile installed just fine all by itself automatically as soon as I installed the Sim. You may want to have the local carrier TIM, take a look, I bet its something in the settings with the local carrier TIM.
Good Luck.
boxcar8028 said:
I’m not sure about Italy but our n6p will work with non-US Sim. I just got back from China and Hong Kong and was using my USA Project Fi and two local carriers (3 and China Mobile) without any problems. Your issues may be carrier base. I did have some drop calls with the carrier 3 in Hong Kong and the set up with 3 was not as easy as China Mobile. I had the carrier 3 Sim installed at the carrier 3 store. But China Mobile installed just fine all by itself automatically as soon as I installed the Sim. You may want to have the local carrier TIM, take a look, I bet its something in the settings with the local carrier TIM.
Good Luck.
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Click to collapse
Yeah, I thought in general that it should work. Unfortunately I don't think I'm going to be able to go into a TIM shop since we're not near one and I doubt I could communicate the issue effectively given my broken Italian... thanks though!
Well, to anyone unlucky enough to have this same problem... I've made some progress! Of the two TIM SIMs we have, one seems to be enabled for 4G access while the other will only connect to 3G - not sure if this is by design or not. I put the 4G-enabled SIM in my N6P, wiped, and rebooted to Chroma and everything worked before even selecting "Automatic".
I tried putting the 3G-only SIM back in - back to no signal. I wonder if the band selection thing isn't working properly? My impression is that it's a 3G only setting and doesn't affect LTE connections, but I could be wrong. I am fairly sure the N6P supports the 2G/3G bands TIM uses around here...
If anyone has a clue on how to make a guide like this: http://forum.xda-developers.com/one-e8/help/signal-selecting-usa-band-4636-menu-t3091439 for the N6P that'd be awesome... not sure I will have time to experiment myself while in the area where it will matter.
Verified that data is still working after restoring my backup too. Calling / SMS seems completely busted though - calls get stuck at "dialing" and SMS messages just seem to disappear.
Any more advice would be appreciated
Sent from my Nexus 6P using XDA-Developers mobile app

Anyone with a Verizon unlocked G6 use/test a 3rd party sim? (+ rooting question)

Just as the title says, has anyone successfully used an unlocked, Verizon branded LG G6 (VS988) with a third party sim (for data and making phone calls? Which country are you in, which sim cards are you using, any attempts abroad/traveling, etc?
Bought a mint unlocked Verizon LG G6, confirmed it was unlocked by two Verizon reps over the phone, and one in-person Verizon rep in my city. With the in-person rep (as well as on my own of course), we could not get my T-mobile, Three (a UK sim), and Project Fi to work with the phone, for data/phone/SMS.
Not surprisingly, when he inserted a Verizon Sim, of course it worked. The rep genuinely tried his best to help, but in the end was like "sorry, ¯_(ツ)_/¯ " and said it was probably an unresolveable network problem, and yes, that the phone was definitely unlocked (checked his database).
Before I came to his shop, though, I spent a couple hours at home tinkering with ALL the phone settings (set up a verified APN, toggle global/LTE-GSM-CDMA options, set data roaming ON), and the best I could get was the G6 successfully connecting to T-Mobile for all of 30 seconds (I could surf the web, but NO phone calls), then losing all bars of connection and cutting out entirely. Toggling airplane mode allows you to connect for at most 30 seconds at a time, also, weirdly enough.
What gives? I confirmed the sim cards worked on my other unlocked devices (LG G5, 1+5, Xiaomi Redmi), and I really want to use this G6 here (USA), but more especially, while I am traveling abroad and looking to use whatever country's local sim cards.
Lastly, do you think rooting this phone and installing a custom ROM would help the issue? I prefer not to return this phone because I got a decent deal on it (through ebay's 20% off) and everything else about it is awesome.
Hi
While not strictly the same, I have Verizon LG V20 VS995 with a similar problem with my EE sim which will not register properly and when it does it is only 3G instead of 4G/LTE but keeps dropping off. Where I differ from you is that I can use an O2 sim and get both calls and 4G/LTE data with it. I live in UK. Hope this might help.
Sent from my VS995 using Tapatalk
My G6 is the unlocked us997, but the wifes is the Verizon Unlocked G6. UNFORTUNATELY I have yet to get her MMS messages working on it for her but everything else works perfectly fine, on TracFone sim (on AT&T network), ... And FYI, only the bootloader unlocked LG G6 can be rooted, all the carrier version, whether they're network locked or unlocked, they're most definitely bootloader locked, thus no root :<P
I got the same phone as you...I live in the Dominican Republic using a Claro chip...Bought the phone from ebay unlocked. So there is something you must talk with verizon so they unlock it. On the other hand we cant root our phones only the europe and US version can be rooted.
Have you checked if this phone has a region locked on it? And if it's removed by placing that 5 minutes-long phone call?
Also, once the SIM (non-Verizon SIM) did you check the APN settings if they are the correct one for your carrier?
I have a similar problem
I bought an unlocked Verizon G6 vs988 on ebay (the listing actually said US997).
I managed to get it to work for phone calls and sms but could not set the data.
I manually set the APN but it would not stay "chosen".
I got all the settings but when I chose it and closed the screen it got unchosen (unchecked) and I did not get a data connection.
is there any custom rom for this model?
would a firmware for the us997 work on this model?
Bump
physics.dor said:
I bought an unlocked Verizon G6 vs988 on ebay (the listing actually said US997).
I managed to get it to work for phone calls and sms but could not set the data.
I manually set the APN but it would not stay "chosen".
I got all the settings but when I chose it and closed the screen it got unchosen (unchecked) and I did not get a data connection.
is there any custom rom for this model?
would a firmware for the us997 work on this model?
Click to expand...
Click to collapse
If you are in U.S. it should work fine with AT&T and T-mobile, as long as correct APN has been entered. once you enter the new APN, you must select the 3dots, on top right and save, once the new SIM inserted, just go back to APN and select the correct APN.
If you are outside U.S, the LG G6 Verizon unlocked does not have B1 (2100) which is required by most GSM carriers out side US, so you can get 3G or in most cases 2G (E) network only. LG G6 AT&T unlocked works fine outside US, but it does not have CDMA technology and can't be use with Verizon or Sprint. hope that helps
Hi , I have a similar problem. I bought vs988 verizon version and popped in a MINT sim. I had issues setting it up but eventually got it work via the pull down menu in the 'settings' at the top that said 'mobile data off - turn on?' - now this has vanished- can I get this back ?
The mobile data button in the notification tab and the actualy mobile button in the mobile data section in 'settings' do not work (and never have) - they always ask me to contact verizon.
So what do i do ? I have no mobile data now. And it's a pain.
My issue is partially solved in that when I 'reset network settings' and then re-add my APN (for mint) it automatically turns on mobile data. Using the other 'mobile data' buttons (as I mention below do not work).
And now that mobile data is on - I use airplane mode to turn it off, and turn on wifi (because i have google voice I still get voice calls). Anyway this works if you have a similar problem.
I am wondering if this issue would exist if I used a Verizon MVNO (instead of Mint/t-mobile) ?
(so by it being offically "unlocked" actually is not really true - when i first bought the phone I messaged LG and they suggested i needed to send it into them so it could be re-flashed. They would charge me for it and I would lose my phone for about 2 weeks - which is a pain, and not worth the expense)
sammyDC said:
Hi , I have a similar problem. I bought vs988 verizon version and popped in a MINT sim. I had issues setting it up but eventually got it work via the pull down menu in the 'settings' at the top that said 'mobile data off - turn on?' - now this has vanished- can I get this back ?
The mobile data button in the notification tab and the actualy mobile button in the mobile data section in 'settings' do not work (and never have) - they always ask me to contact verizon.
So what do i do ? I have no mobile data now. And it's a pain.
Click to expand...
Click to collapse
I have the verizon version of lg g6 and it works perfectly fine in Nigeria with all nigerian sims:mtn,airtel,glo,9mobile and even works on 4g let but I set the network mode to global and I receive calls and sms promptly

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