Hi all. I have a challenge with my Galaxy S8. I used it on H2O Wireless (AT&T network) for a few months. I then switched over to Total Wireless (Verizon network) for a month. I've switched back over to H2O and data/texts are working fine. However, I can't make or receive phone calls. When I go into the Network Mode settings, the CDMA options still seem to be stuck in there, with none of the GSM options showing. I've spoken to both H2O and Samsung support and neither have an answer - pointing their fingers in the other's direction.
Does anyone have any suggestions other than doing a factory reset? Thanks in advance.
aweedman said:
Hi all. I have a challenge with my Galaxy S8. I used it on H2O Wireless (AT&T network) for a few months. I then switched over to Total Wireless (Verizon network) for a month. I've switched back over to H2O and data/texts are working fine. However, I can't make or receive phone calls. When I go into the Network Mode settings, the CDMA options still seem to be stuck in there, with none of the GSM options showing. I've spoken to both H2O and Samsung support and neither have an answer - pointing their fingers in the other's direction.
Does anyone have any suggestions other than doing a factory reset? Thanks in advance.
Click to expand...
Click to collapse
Factory reset with your h2o sim card in the phone. If this doesnt solve the issue download and re flash the H2O csc
aweedman said:
Hi all. I have a challenge with my Galaxy S8. I used it on H2O Wireless (AT&T network) for a few months. I then switched over to Total Wireless (Verizon network) for a month. I've switched back over to H2O and data/texts are working fine. However, I can't make or receive phone calls. When I go into the Network Mode settings, the CDMA options still seem to be stuck in there, with none of the GSM options showing. I've spoken to both H2O and Samsung support and neither have an answer - pointing their fingers in the other's direction.
Does anyone have any suggestions other than doing a factory reset? Thanks in advance.
Click to expand...
Click to collapse
Have your H2O sim in your phone, then go to settings>general management>reset and reset network settings, at least try that first.
Thanks
Charkatak said:
Have your H2O sim in your phone, then go to settings>general management>reset and reset network settings, at least try that first.
Click to expand...
Click to collapse
Thanks for the suggestion. I tried this but unfortunately no luck. I've tried popping in a couple other GSM SIM cards that I have around but can't get it to switch over. Really strange issue.
Related
I've been tracking and testing a bug where if you activate your N6 on Verizon, then switch the SIM to another carrier (say TMO) to test your phone will not re-connect to VZW when you put the original SIM in. This happens if you change the "Global" setting the LTE (Recommended). After you set that on TMO (or AT&T or...) the options menu only gives you 2G/3G/LTE where when activated on VZ gives you "LTE/3G/1x/Global". The only way to get the phone back on VZ is to factory reset.
Today - I just came back from a trip to Canada where in Global mode the phone roamed on one of their GSM based carriers. I didn't change the roaming mode out of Global (I know better) but when I was back in the US the phone wouldn't go back to VZW - instead went to "Emergency Calls Only" I checked the carrier settings and in the time I was in Canada (2 weeks), the Global option disappeared, leaving only 2G/3G/LTE...and no Verzion. It was done. Factory reset time.
Hope they've spotted this issue in their "intensive" testing process and that's why they are holding up the release. If not..be prepared if you roam globally on the N6 to have a dead radio when you come home and factory reset.--unless there is a service/app settings that can be easily wiped...
caveat71 said:
I've been tracking and testing a bug where if you activate your N6 on Verizon, then switch the SIM to another carrier (say TMO) to test your phone will not re-connect to VZW when you put the original SIM in. This happens if you change the "Global" setting the LTE (Recommended). After you set that on TMO (or AT&T or...) the options menu only gives you 2G/3G/LTE where when activated on VZ gives you "LTE/3G/1x/Global". The only way to get the phone back on VZ is to factory reset.
Today - I just came back from a trip to Canada where in Global mode the phone roamed on one of their GSM based carriers. I didn't change the roaming mode out of Global (I know better) but when I was back in the US the phone wouldn't go back to VZW - instead went to "Emergency Calls Only" I checked the carrier settings and in the time I was in Canada (2 weeks), the Global option disappeared, leaving only 2G/3G/LTE...and no Verzion. It was done. Factory reset time.
Hope they've spotted this issue in their "intensive" testing process and that's why they are holding up the release. If not..be prepared if you roam globally on the N6 to have a dead radio when you come home and factory reset.--unless there is a service/app settings that can be easily wiped...
Click to expand...
Click to collapse
I had the same issue (my thread is in the Q&A subforum). Nothing short of a factory reset would fix. Hopefully Google gets on this and fixes it. I travel overseas for work frequently, and the whole point of getting the Nexus 6 was so I could use one phone here and there!
I'm on ATT using a GPS version phone, and I noticed in the "Preferred Network Type" my default setting was on "Global". But it only has choices of "LTE (recommended)", "3G", and "2G". So if I switch to LTE, I have no way of changing back to Global.
Subscribing to thread for a fix.
Can you not change the network type in the *#*#4636#*#* menu to "LTE/GSM/CDMA auto (PRL)"?
I just switched back and forth. Not sure I understand what is going on here.
Edit. Ahhh but you also switched carriers, interesting.
well thats a bit concerning... I'm leaving for taiwan in a couple days and was looking forward to just dropping in a sim over there.
So even with 5.0.1 you cant go back to VZW without a factory reset?
Okay I just got back from a trip to Taiwan. I switched to 2 different carrier Sim cards.
Upon returning to the states, I popped in my Verizon sim card and everything works fine.
Yeah, just do the *#*#4636#*#* and change the network that which you'd like to connect. So for Verizon, you would choose CDMA/LTE in the drop down menu. Once you do that, your network options in the regular settings will change.
Same thing happened to me on a recent trip to Spain. I made a backup before traveling and upon return I flashed the backup to get it to work again in the states.
Sent from my Nexus 6 using XDA Free mobile app
Has anyone seen any updates on this? Is Google aware of this bug? I'm using my Moto X overseas since I don't want to factory reset my Nexus 6 when I get home. This was the whole point of getting a Nexus 6 in the first place: I could use the same phone here and home with a simple SIM swap!
Has anyone tried
fastboot oem config carrier vzw
to see if that will "jump start" the phone back to Verizon?
tcrews said:
Has anyone tried
fastboot oem config carrier vzw
to see if that will "jump start" the phone back to Verizon?
Click to expand...
Click to collapse
That did nothing for me. Tried it earlier this week
Those with the radio issues could try to flash only the radio.img using fastboot. This would let you restore the radio without having to wipe the entire device. Hopefully a fix will come when Verizon officially releases the Nexus 6.
My solution was to pop in an active T-Mobile sim, turn the phone on, and then back off, and then pop in the vzw sim.
That seemed to solve the problem.
Interesting. Wonder why a US GSM carrier would fix the problem, but a foreign GSM carrier causes it. Maybe I'll give that a try next trip (in 2 weeks).
I don't think its the matter of a foreign GSM carrier causing the problem.....
I think the problem is Verizon.
I don't hear of this issue with anyone else but Verizon customers.
I doubt it, since the inability to switch modes is present even before the Verizon SIM is inserted. I think it's a bug within Android itself.
satadru said:
My solution was to pop in an active T-Mobile sim, turn the phone on, and then back off, and then pop in the vzw sim.
That seemed to solve the problem.
Click to expand...
Click to collapse
I just tried this exact same thing after being in London and Budapest. My Verizon SIM in my Nexus 6 wouldn't register on their network. I put in the T-Mobile SIM and it did work and register with no problems. Switched back to Verizon's SIM and no luck. Still not able to register on the Verizon network.
To clarify, the verizon sim roamed onto canadian providers without problems. When I returned to a normal Verizon service area, the phone wouldn't register again (on verizon) until I popped in a t-mobile sim, and then switched back to the Verizon sim.
satadru said:
To clarify, the verizon sim roamed onto canadian providers without problems. When I returned to a normal Verizon service area, the phone wouldn't register again (on verizon) until I popped in a t-mobile sim, and then switched back to the Verizon sim.
Click to expand...
Click to collapse
Yes, that's what I did. Went to London/Budapest with the Verizon SIM roaming. Landed back in the States, no more Verizon connection on the Verizon SIM. Popped in the T-Mobile SIM and it works perfectly.
Tried doing the switch back like you mentioned, but no luck at first. Had to try a few times. Back to life now.
Thanks very much.
Just bought verizon galaxy S 5. Changed SIM to AT&T from straight talk. First of all was that a mistake? When ever i leave a wi-fi area the phone goes to emergency calls only. Email and text stops as well. Can't get voice mail to work anywhere
Would appreciate any help.
Thank you
Just a thought, go to settings /more networks and make sure you have the correct network checked
New to verizon galaxy s 5
The network was correct . Wondering if im in a bad area. My Iphone 4 works fine. Might be AT&T
jokey321 said:
Just bought verizon galaxy S 5. Changed SIM to AT&T from straight talk. First of all was that a mistake? When ever i leave a wi-fi area the phone goes to emergency calls only. Email and text stops as well. Can't get voice mail to work anywhere
Would appreciate any help.
Thank you
Click to expand...
Click to collapse
jokey321 said:
The network was correct . Wondering if im in a bad area. My Iphone 4 works fine. Might be AT&T
Click to expand...
Click to collapse
Wait... you put an AT&T sim in your phone? This is a Verizon forum. If I misunderstood, please tell me.
Just to be clear because you didn't state it in your post, you must unlock your phone prior to using a non-Verizon SIM. You can sometimes get these unlock codes from Verizon but you can also buy them online. I've used GSMLiberty.net with success before. After that, you should be able to pop in your SIM from the new carrier and begin using it right away. In some cases, you may need to manually add the correct APN for your carrier. Find these settings under Settings > More networks > Mobile networks > Access point names. Click the little plus icon in the top right and manually enter AT&T's APN information. You may need to Google that as I don't know AT&T's APN info.
I use my Verizon S5 on T-Mobile's networks with absolutely no issues, I assume it would be a similar experience for AT&T as well. For me, I put my T-Mobile SIM card in and could make calls and receive texts, but mobile data and MMS was not working properly until I manually added the correct APN information. After that, MMS, 4G LTE data and everything is working flawlessly.
You do not need an unlock code for a LTE Verizon phone. These phones are already unlocked. One must set the correct APN.
Do not buy an unlock code!
I have used my Verizon S5 with att and t-mobile.
Good luck.
Sent from my C6806_GPe using Tapatalk
thank you all
Thank you for your posts. Most of the phone works. When I leave a wi-fi area my phone goes to emergency calls only. When I go back to a wi-fi area the normal call service works again. I'm new to verizon and samsung. Wanted to use straight talk because i didn't feel like paying a fortune for service. I'll get it figured out some way.
Thank you again
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.
I have a factory unlocked S8 I just recieved that I've been using on Straight Talk(verizon network) and that's been working fine but I wanted to test the reception of t-mobile in some places and I can't get anything to work. I have a Flash Wireless sim that I've used to at least see if I have service on other phones but I get nothing on the S8.
In Network Mode I only have the option for LTE/CDMA or CDMA. No Global or GSM options are even listed. Does this have to do with the SIM card not being properly registered? I would think I would have a Global option regardless of SIM I put in it.
mjsbullitt said:
I have a factory unlocked S8 I just received that I've been using on Straight Talk(verizon network) and that's been working fine but I wanted to test the reception of t-mobile in some places and I can't get anything to work. I have a Flash Wireless sim that I've used to at least see if I have service on other phones but I get nothing on the S8.
In Network Mode I only have the option for LTE/CDMA or CDMA. No Global or GSM options are even listed. Does this have to do with the SIM card not being properly registered? I would think I would have a Global option regardless of SIM I put in it.
Click to expand...
Click to collapse
I have the same problem. I'm on MetroPCS and I bought a Galaxy S8 used on Straight Talk before. I can't make any phone calls, but I have LTE and SMS works just fine. Does anyone else experience the same issue? I really appreciate any help. Thank you.
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.