Database Users

[Q] sprint gs4 international sim unlocked data

I have a sprint GS4 that was unlocked for international sim use because I am spending some time in london. I bought a sim card on the 3 network when here. I have really good voice coverage almost all the time but I have really spotty data coverage. It will be connected and then suddenly disconnect and not reconnect almost as if I dont have any data coverage. Sometimes when I change mobile network settings around it'll come back but there's no certain fix to the problem. I am wondering if this is a known issue, and if there is a solution/if i should move to another network/get a new phone(which would be my last option if i only really had to). Looking for any advice/suggestions.

ghorrocks28 said:
I have a sprint GS4 that was unlocked for international sim use because I am spending some time in london. I bought a sim card on the 3 network when here. I have really good voice coverage almost all the time but I have really spotty data coverage. It will be connected and then suddenly disconnect and not reconnect almost as if I dont have any data coverage. Sometimes when I change mobile network settings around it'll come back but there's no certain fix to the problem. I am wondering if this is a known issue, and if there is a solution/if i should move to another network/get a new phone(which would be my last option if i only really had to). Looking for any advice/suggestions.
Click to expand...
Click to collapse
As per the thread I link below it seems to be a common problem with all SGS4 phones.
http://forum.xda-developers.com/showthread.php?p=49407290

pcfascist said:
As per the thread I link below it seems to be a common problem with all SGS4 phones.
http://forum.xda-developers.com/showthread.php?p=49407290
Click to expand...
Click to collapse
well that blows, but that thread definitely tells me how to fix it.
thanks.

Non Verizon Nexus 6 Booted off the Network.

Verizon Booted me from the Network
4 Months ago I moved to Big Red with my N6.
The signal wasn't as strong as my other Verizon devices which I found odd. I lived about 2 miles away from a Verizon tower and on this device I was only connected 45-50% of the time while at home.
After the first 3 weeks I was still frustrated with the poor signal and I read online everyone cried foul on Google(or Motorola), so forced a PRL update to see if that would fix the issue:
I lost LTE connectivity.
I was connected to 3G but I had no service.
I re entered the APN, nothing.
I took the SIM out put it back in, nothing.
I read online that someone else had a similar issue with the Nexus 6 on Verizon and the only way to resolve the issue was to replace the SIM and that's what I did, LTE service was restored.
About 2 weeks ago I moved about a mile further away from my nearest Verizon tower, so I'm about 3 miles away from a Verizon tower and 80-85% of the time at home I'm not connected.
Today:
Around 3 PM I was in the city and my LTE was fine, I had bars, I had a signal, nothing had changed on my end but I was unable to send text messages, I kept getting this message "Can't send message with CARD 1 error 98" And when I spoke with my sister she said she had been trying to call me for the last 3 hours.
So I contacted Verizon and asked if there was an outage in my area, they said no so I went on to explain the issue(s), and I was told by the customer service rep that my phone wasn't making a connection to the Verizon network, they couldn't see my phone and I needed tech support. Which made sense because of the poor signal all of the time.
So I called Verizon tech support. And the service rep said that I need to enable roaming by entering
PHP:
*22898
This did not fix my issue but maybe it could benefit someone else on Big Red.
I told them the error code and Tech support said we need to check if your phone has dual SIM, I said no it is a Nexus 6 it does not have a second SIM slot I don't care what the error message said. Then I was directed to another tech rep and he said "your phone is NOT a Verizon Nexus 6 and we cannot find it on our network, your phone will not activate on our network, your IMEI is not available to activate on our network" I said wait a minute. I understand the whole FCC ruling and months ago this was suppose to be resolved(I read the post here on XDA). I went online activated the phone when I moved my Nexus 6 over to Verizon, it shows up as a Non Verizon Nexus 6. It allowed me to activate it. It took the IMEI and now they are telling me, NOT ANY MORE!?
I was transferred to a supervisor. He said the same thing, he said he would try to reset everything for my phone but still poor signal and still I have no idea what calls or messages I'm missing and a few text messages are not being sent. I'm on call 24/7 but it looks like I'm going to have to go back to AT&T or T-Mobile.
I believe the poor signal issue is not only Google but also Verizon is still keeping us off the network for the most part and only allowing us to piggyback the rest of the time. Maybe I'm wrong but I hope my 3 hours wasted helps someone else with a similar experience.
I thought I also read somewhere that T-Mobile shut off Band 12. Seriously what the hell is going on with these carriers.

The Closet Candian said:
Verizon Booted me from the Network
4 Months ago I moved to Big Red with my N6.
The signal wasn't as strong as my other Verizon devices which I found odd. I lived about 2 miles away from a Verizon tower and on this device I was only connected 45-50% of the time while at home.
After the first 3 weeks I was still frustrated with the poor signal and I read online everyone cried foul on Google(or Motorola), so forced a PRL update to see if that would fix the issue:
I lost LTE connectivity.
I was connected to 3G but I had no service.
I re entered the APN, nothing.
I took the SIM out put it back in, nothing.
I read online that someone else had a similar issue with the Nexus 6 on Verizon and the only way to resolve the issue was to replace the SIM and that's what I did, LTE service was restored.
About 2 weeks ago I moved about a mile further away from my nearest Verizon tower, so I'm about 3 miles away from a Verizon tower and 80-85% of the time at home I'm not connected.
Today:
Around 3 PM I was in the city and my LTE was fine, I had bars, I had a signal, nothing had changed on my end but I was unable to send text messages, I kept getting this message "Can't send message with CARD 1 error 98" And when I spoke with my sister she said she had been trying to call me for the last 3 hours.
So I contact Verizon and asked if there was an outage in my area, they said no so I went on to explain the issue(s), and I was told by the customer service rep that my phone wasn't making a connection to the Verizon network, they couldn't see my phone and I needed tech support. Which made sense because of the poor signal all of the time.
So I called Verizon tech support. And the service rep said that I need to enable roaming by entering
PHP:
*22898
This did not fix my issue but maybe it could benefit someone else on Big Red.
I told them the error code and Tech support said we need to check if your phone has dual SIM, I said no it is a Nexus 6 it does not have a second SIM slot I don't care what the error message said. Then I was directed to another tech rep and he said "your phone is NOT a Verizon Nexus 6 and we cannot find it on our network, your phone will not activate on our network, your IMEI is not available to activate on our network" I said wait a minute. I understand the whole FCC ruling and months ago this was suppose to be resolved(I read the post here on XDA). I went online activated the phone when I moved my Nexus 6 over to Verizon, it shows up as a Non Verizon Nexus 6. It allowed me to activate it. It took the IMEI and now they are telling me, NOT ANY MORE!?
I was transferred to a supervisor. He said the same thing, he said he would try to reset everything for my phone but still poor signal and still I have no idea what calls or messages I'm missing and a few text messages are not being sent. I'm on call 24/7 but it looks like I'm going to have to go back to AT&T or T-Mobile.
I believe the poor signal issue is not only Google but also Verizon is still keeping us off the network for the most part and only allowing us to piggyback the rest of the time. Maybe I'm wrong but I hope my 3 hours wasted helps someone else with a similar experience.
I thought I also read somewhere that T-Mobile shut off Band 12. Seriously what the hell is going on with these carriers.
Click to expand...
Click to collapse
T-Mobile has not shut band 12. They did it only for Project FI users.
Sent from my Nexus 6 using Tapatalk

The Closet Candian said:
Verizon Booted me from the Network
4 Months ago I moved to Big Red with my N6.
The signal wasn't as strong as my other Verizon devices which I found odd. I lived about 2 miles away from a Verizon tower and on this device I was only connected 45-50% of the time while at home.
After the first 3 weeks I was still frustrated with the poor signal and I read online everyone cried foul on Google(or Motorola), so forced a PRL update to see if that would fix the issue:
I lost LTE connectivity.
I was connected to 3G but I had no service.
I re entered the APN, nothing.
I took the SIM out put it back in, nothing.
I read online that someone else had a similar issue with the Nexus 6 on Verizon and the only way to resolve the issue was to replace the SIM and that's what I did, LTE service was restored.
About 2 weeks ago I moved about a mile further away from my nearest Verizon tower, so I'm about 3 miles away from a Verizon tower and 80-85% of the time at home I'm not connected.
Today:
Around 3 PM I was in the city and my LTE was fine, I had bars, I had a signal, nothing had changed on my end but I was unable to send text messages, I kept getting this message "Can't send message with CARD 1 error 98" And when I spoke with my sister she said she had been trying to call me for the last 3 hours.
So I contact Verizon and asked if there was an outage in my area, they said no so I went on to explain the issue(s), and I was told by the customer service rep that my phone wasn't making a connection to the Verizon network, they couldn't see my phone and I needed tech support. Which made sense because of the poor signal all of the time.
So I called Verizon tech support. And the service rep said that I need to enable roaming by entering
PHP:
*22898
This did not fix my issue but maybe it could benefit someone else on Big Red.
I told them the error code and Tech support said we need to check if your phone has dual SIM, I said no it is a Nexus 6 it does not have a second SIM slot I don't care what the error message said. Then I was directed to another tech rep and he said "your phone is NOT a Verizon Nexus 6 and we cannot find it on our network, your phone will not activate on our network, your IMEI is not available to activate on our network" I said wait a minute. I understand the whole FCC ruling and months ago this was suppose to be resolved(I read the post here on XDA). I went online activated the phone when I moved my Nexus 6 over to Verizon, it shows up as a Non Verizon Nexus 6. It allowed me to activate it. It took the IMEI and now they are telling me, NOT ANY MORE!?
I was transferred to a supervisor. He said the same thing, he said he would try to reset everything for my phone but still poor signal and still I have no idea what calls or messages I'm missing and a few text messages are not being sent. I'm on call 24/7 but it looks like I'm going to have to go back to AT&T or T-Mobile.
I believe the poor signal issue is not only Google but also Verizon is still keeping us off the network for the most part and only allowing us to piggyback the rest of the time. Maybe I'm wrong but I hope my 3 hours wasted helps someone else with a similar experience.
I thought I also read somewhere that T-Mobile shut off Band 12. Seriously what the hell is going on with these carriers.
Click to expand...
Click to collapse
I have VZW and I am not seeing any of the issues that occurred before VZM finally allowed the Non VZM N6s on Network.
- I can still make account changes
- I still have my monthly discount.
Those are typically the two easiest ways to see if you have a supported phone or not. I think you may have signal quality issues but I think those reps may have been wrong. I have a GPS N6 though what version do you have?

BigDig said:
T-Mobile has not shut band 12. They did it only for Project FI users.
Sent from my Nexus 6 using Tapatalk
Click to expand...
Click to collapse
Thanks for the clarification.

GMoGoody said:
I have VZW and I am not seeing any of the issues that occurred before VZM finally allowed the Non VZM N6s on Network.
- I can still make account changes
- I still have my monthly discount.
Those are typically the two easiest ways to see if you have a supported phone or not. I think you may have signal quality issues but I think those reps may have been wrong. I have a GPS N6 though what version do you have?
Click to expand...
Click to collapse
My N6 was unlocked new from Google.

Zero problems after a year with the GPS N6 on verizon. What radio are you running?
Sent from my Nexus 6 using Tapatalk

bill3508 said:
Zero problems after a year with the GPS N6 on verizon. What radio are you running?
Sent from my Nexus 6 using Tapatalk
Click to expand...
Click to collapse
That I couldn't tell you, if you could explain or provide a link on how to check and select it would be greatly appreciated.

The Closet Candian said:
That I couldn't tell you, if you could explain or provide a link on how to check and select it would be greatly appreciated.
Click to expand...
Click to collapse
Settings > About phone > Baseband version

patmw123 said:
Settings > About phone > Baseband version
Click to expand...
Click to collapse
MDM9625_104662.22.05.27R
I thought you meant
PHP:
*#*#4636#*#*
It has an option to select band

The Closet Candian said:
MDM9625_104662.22.05.27R
I thought you meant
PHP:
*#*#4636#*#*
It has an option to select band
Click to expand...
Click to collapse
Are you 100% stock?
Even if you are, you might try flashing the latest factory image to restore phone to out of box settings.
The reason I am suggesting this is because I had the same issue on my previous phone(HTC M8) with Verizon. I tried everything you have tried and nothing worked until I RUU'd back to stock and it magically started working again.
I realize the M8 is a completely different phone, but if all else has failed it is worth a shot.

FYI, *228, *22898, & *22899 do not work on any LTE enabled VZW device. That is/was used on 3G devices for updating the PRL. In very early LTE devices, dialing that could have actually caused the phone to stop working. It's been fixed now so it doesn't do anything. With the SIM card, the PRL updates automatically when the device connects to the network, so you don't need to dial anything to get the latest PRL.
As for fixing your problem, the only other suggesting I'd say is to try just getting a new SIM card and see if the problem continues.

I find it odd that you are having all of these problems. I originally got my Nexus 6 from Sprint. I am now using Straight Talk. I bought the BYOP kit that came with 9 sim cards, a Verizon activation code, and the $45 monthly service card. The sim cards you get are for Verizon, AT&T, and T-Mobile. (Regular, Micro, Nano for each) I went the Verizon route for obvious reasons. I have had zero problems with service and my LTE is twice as fast as when I was on Sprint. When I look at my lock screen it even says "Verizon Wireless" in the top left corner.
I have yet to experience any of the issues you are having. I know I am not "directly" on Verizon like you are, but that is why I wanted to bring this to your attention. If you would like Verizon coverage on your Nexus 6 for $45 a month check out Straight Talk. You get unlimited talk, text, data. Data is 5GB of LTE then throttled. I have heard the only difference is that you can't quite roam / utilize the partner coverage that someone directly on Verizon can. I have yet to come across anywhere that I have not had signal though.

ldjr said:
Are you 100% stock?
Even if you are, you might try flashing the latest factory image to restore phone to out of box settings.
The reason I am suggesting this is because I had the same issue on my previous phone(HTC M8) with Verizon. I tried everything you have tried and nothing worked until I RUU'd back to stock and it magically started working again.
I realize the M8 is a completely different phone, but if all else has failed it is worth a shot.
Click to expand...
Click to collapse
100% Stock, locked bootloader, no root. I might try that if all else fails, I have an invite to project fi. I was thinking about trying it out even though sprint was horrible in my area and I doubt it has improved.

imnuts said:
FYI, *228, *22898, & *22899 do not work on any LTE enabled VZW device. That is/was used on 3G devices for updating the PRL. In very early LTE devices, dialing that could have actually caused the phone to stop working. It's been fixed now so it doesn't do anything. With the SIM card, the PRL updates automatically when the device connects to the network, so you don't need to dial anything to get the latest PRL.
As for fixing your problem, the only other suggesting I'd say is to try just getting a new SIM card and see if the problem continues.
Click to expand...
Click to collapse
This is my second Verizon SIM and I'm not impressed with the reception.

Rektifying said:
I find it odd that you are having all of these problems. I originally got my Nexus 6 from Sprint. I am now using Straight Talk. I bought the BYOP kit that came with 9 sim cards, a Verizon activation code, and the $45 monthly service card. The sim cards you get are for Verizon, AT&T, and T-Mobile. (Regular, Micro, Nano for each) I went the Verizon route for obvious reasons. I have had zero problems with service and my LTE is twice as fast as when I was on Sprint. When I look at my lock screen it even says "Verizon Wireless" in the top left corner.
I have yet to experience any of the issues you are having. I know I am not "directly" on Verizon like you are, but that is why I wanted to bring this to your attention. If you would like Verizon coverage on your Nexus 6 for $45 a month check out Straight Talk. You get unlimited talk, text, data. Data is 5GB of LTE then throttled. I have heard the only difference is that you can't quite roam / utilize the partner coverage that someone directly on Verizon can. I have yet to come across anywhere that I have not had signal though.
Click to expand...
Click to collapse
Wow I might give that a try. I might have been misinformed but I heard that prepaid plans didn't give you the full service as contract plans.

The Closet Candian said:
Wow I might give that a try. I might have been misinformed but I heard that prepaid plans didn't give you the full service as contact plans.
Click to expand...
Click to collapse
I have been running on straight talk for years across many devices. There is almost no difference. Yes they throttle you after like 4gb or something but I havew never reached that limit with wifi everywhere

The Closet Candian said:
This is my second Verizon SIM and I'm not impressed with the reception.
Click to expand...
Click to collapse
The SIM card has nothing to do with reception. Have you tried a new SIM since the problem started? I suggested it to fix your problem of having no service, not to get a better signal.

+1 on reflashing stock images.
Same problem I had with Verizon on straight talk. I went through so much bs with these people, with same issues you had. It seemed like it was still stuck in GSM or something, and the only band that would work was band 6 on 2g. I could send mms and browse the internet, but a phone call would hang up immediately. USA Band wouldn't work WHATSOEVER.
I called customer service and talked to about 6 different people, all who told me my phone wouldn't work on VZW. When I told them they were full of crap, they would transfer me to somebody else. I finally found someone who ended up changing my phone number on the spot and gave me 5 more gigs of data, but my n6 still wouldn't work; I could call out, but no data or MMS/internet.
I was on the verge of saying **** Verizon. I reflashed factory images and everything was smooth sailing and worked properly. I think there is a bug when you change your radios, something fudges up.
The Verizon straight talk plan is nice if you can get around the hurdles I faced. The only downside,besides what I have already mentioned, is they cap your max speed at 5 mb/s when downloading. I live in an area where ATT rules all, but Verizon picks up LTE in places ATT can't even get 2g (whereas ATT ST downloads around 20+mb/s)... so you'll have to compromise.
FWIW, if you ever hear a customer service rep tell you that they cannot change your phone number without sending you a new sim card, that's a damn lie.
Also, here are my apns to compare with yours. I did not touch these after flashing. I read somewhere that these were the old ones, but they work perfectly.

Using a non Verizon n6 with no issues. I had a local repair shop cut my micro Sim to a nano Sim,and I've been up and running since June. Too bad you are having issues.

Kroniq said:
+1 on reflashing stock images.
Same problem I had with Verizon on straight talk. I went through so much bs with these people, with same issues you had. It seemed like it was still stuck in GSM or something, and the only band that would work was band 6 on 2g. I could send mms and browse the internet, but a phone call would hang up immediately. USA Band wouldn't work WHATSOEVER.
I called customer service and talked to about 6 different people, all who told me my phone wouldn't work on VZW. When I told them they were full of crap, they would transfer me to somebody else. I finally found someone who ended up changing my phone number on the spot and gave me 5 more gigs of data, but my n6 still wouldn't work; I could call out, but no data or MMS/internet.
I was on the verge of saying **** Verizon. I reflashed factory images and everything was smooth sailing and worked properly. I think there is a bug when you change your radios, something fudges up.
The Verizon straight talk plan is nice if you can get around the hurdles I faced. The only downside,besides what I have already mentioned, is they cap your max speed at 5 mb/s when downloading. I live in an area where ATT rules all, but Verizon picks up LTE in places ATT can't even get 2g (whereas ATT ST downloads around 20+mb/s)... so you'll have to compromise.
FWIW, if you ever hear a customer service rep tell you that they cannot change your phone number without sending you a new sim card, that's a damn lie.
Also, here are my apns to compare with yours. I did not touch these after flashing. I read somewhere that these were the old ones, but they work perfectly.
Click to expand...
Click to collapse
The thread owner is on Verizon directly, not Straight Talk. I just offered him the idea. I am using Straight Talk (Verizon Sim Card) with my Nexus 6 and I have had zero issues. When you are on stock / flash stock images, when you boot up your phone, the proper APN settings will load right up and LTE will take off. Works great. Now, what you need to do is write these APN settings down, precisely. I have noticed that sometimes when you flash a custom ROM, the APN settings won't load automatically.
This just happened to me when I flashed "The Pure Nexus Project". I ended up with no data. I manually entered the APN settings and boom. Full data, LTE, MMS, etc

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.

How can i force the OnePlus 6T to an specific network?

Okay, so I am on Verizon and I purchased the OnePlus 6T straight from OnePlus website. I have the 8gb ram and 256gb storage model. I have unlocked the bootloader but haven't installed a custom recovery or rooted yet. Just wanted to unlocked bootloader since it requires a wipe of device storage in case for the future.
Anyways, the phone works amassing, battery life is great, I had a pixel XL before this, screen is fantastic and is plenty fast but I have ran into an issue. The phone was activated on Verizon using Sim 1. Signal is not an issue, always have LTE from Verizon and way better signal than pixel XL ever had.
My issue is I live in a border town with Mexico and I just noticed that when I am close to the border, like within a mile the phone switches to Movistar cell provider. Movistar is a Mexican cell phone provider. Is not that I lost signal because my pixel XL had signal all over there before and the OnePlus 6T is stronger, is just that apparently the Movistar provider has a stronger signal on that area and the phone is choosing to pick up the stronger signal, even if it means going off and switching to roaming.
It doesn't cost me any $$ and speed is wicked fast while roaming but Verizon will only allow 0.5gb of roaming per day which limits the usability of the phone. Anyways, thanks for reading my long post, just wanted to give some context to the question and hopefully find an answer. Like i said, I did search and didn't find anything. If I have to root to install an add-on or an app that lets me pick my signal please advise. Also I know that I still have a strong Verizon signal because I used ltediscovery app to check and it shows the signal strength of whatever many signal phone is picking up.
Thanks in advance for reading and for answers.

One option might be Network Signal Guru in the Play Store (requires root). It's the only app I've found that allows the user to lock the phone to a specific band - which might help with your situation.

phil737 said:
One option might be Network Signal Guru in the Play Store (requires root). It's the only app I've found that allows the user to lock the phone to a specific band - which might help with your situation.
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Outstanding sir. Thanks for the information. I guess time to root then for me. Been waiting for a stable recovery for OnePlus 6T but I supposed no harm so far using current version of twrp, as far as I have read.

have you tried going to settings, internet, sim, sim1, network provider, disabling the automatic option and selecting your preferred provider manually? this way you will stick to that selection

OnkeIM said:
have you tried going to settings, internet, sim, sim1, network provider, disabling the automatic option and selecting your preferred provider manually? this way you will stick to that selection
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Either I do not have that option or I couldn't follow the steps.
When I go to settings, wifi & internet, Sim, sim1 then I see what is on the attached screenshot.

it seems you are missing some options
it should look like this: network operator
try to search for operator or network on the main options screen at the search bar on top.
if still no luck than maybe there is something wrong with your sim card or apn settings. you should try to contact OnePlus support than.

OnkeIM said:
it seems you are missing some options
it should look like this: network operator
try to search for operator or network on the main options screen at the search bar on top.
if still no luck than maybe there is something wrong with your sim card or apn settings. you should try to contact OnePlus support than.
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Mine does have network operator anywhere.
I look through all the settings and nowhere to be found. I am on Verizon network and only sim1 has a card in it.
Sim2 is empty.
I can get to the special settings through *#*#4636#*#* and even there changing different LTE settings keeps reconnecting to roaming network since the tower is like a stone through away.
Any other options would be greatly appreciated. Also the app that was suggested in 2nd post, rooted phone to try it and that option if it works is behind pay part and that app fee is $50/m. A bit steep for me so looking for options still.
Thanks in advance

Couldn't you just disable roaming?

AsuraDas said:
Couldn't you just disable roaming?
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I could but I only have an option for disabling data roaming, not roaming all together. I tried it in the past and all it did was kept me connected to the roaming network and turned off the data off of the roaming network connection. Meaning I had zero data connectivity.
I wonder if putting a Sim in sim2 slot would open up more settings ?
If anyone is using 6T on Verizon could you please go to wifi & network, sim1 and see if you get any more options than what I posted on previous ss about 3 post ago.
Thanks in advance

rfvreynoso said:
Mine does have network operator anywhere.
I look through all the settings and nowhere to be found. I am on Verizon network and only sim1 has a card in it.
Sim2 is empty.
I can get to the special settings through *#*#4636#*#* and even there changing different LTE settings keeps reconnecting to roaming network since the tower is like a stone through away.
Any other options would be greatly appreciated. Also the app that was suggested in 2nd post, rooted phone to try it and that option if it works is behind pay part and that app fee is $50/m. A bit steep for me so looking for options still.
Thanks in advance
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do you have a carrier locked device? that might prevent you from doing changes to your sim.

OnkeIM said:
do you have a carrier locked device? that might prevent you from doing changes to your sim.
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I don't believe this is carrier locked since I bought straight from OnePlus website. Hell, I was even charge a currency conversion fee by my credit card cause the purchased was in foreign currency.

rfvreynoso said:
I don't believe this is carrier locked since I bought straight from OnePlus website. Hell, I was even charge a currency conversion fee by my credit card cause the purchased was in foreign currency.
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you should try another sim (family or friends) and check if the missing option appears. maybe try your sim in another phone too.
lastly you could try a full factory reset (deletes all data)
at the end if it still does not work you really should call OnePlus for help.
also I found this app here: https://play.google.com/store/apps/details?id=com.pomo.android.networkoperators
open it and select "available networks"
that should open the missing menu to toggle operator selection...

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):
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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.
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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.
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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?
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Not sure. The carrier may need to do a reset on their end.