I bought s10 5g last Monday. It's model is Tmobile SM-G977T. It came with android 10 and everything was working fine until I updated it to android 11 one ui 3.1. Now network is very slow, both Wi-Fi and data. I can't receive calls or make calls. Sometimes I have to dail up a number like 5 times before it connect. I tried to downgrade back to android 10 but I get auth error odin. Please help me.
First try contacting the Carrier first, if they can't fix it then either ask for a replacement SIM.
If they can't fix it then the only other choice would be to report the issue to Samsung Members app on your device, they will be able to look into it.
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Hi! Thanks for reading my problem.
I have a tmobile note 8 that I have successfully switched to verizon firmware according to the guide here. It got the verizon boot logo and bloatware just like vzw phone.
It work perfectly after the switch, 4g lte ,call or text all work.
But it will drop after a while of use. It can be a few hours or few minutes. I cannot receive call, cannot access internet, cannot make call...
If I restart it all will become working again for a while. Any recommendation how to fix it? Thanks again.
I have a note 8 (SM-N950F/DS) for about three weeks now. I am using FP on AT&T network. When I just got it, especially while I was moving in the car or train, it would lost the data connection quite often even though showing full bar signal. I had to put it on air plane mode then switched back to reconnect.
Then after 1-2 weeks of use, the issue went away. I don't know it was due to the latest update (I am on Dec security patch now) or some kind of the phone learning my travel pattern.
Benson830 said:
Hi! Thanks for reading my problem.
I have a tmobile note 8 that I have successfully switched to verizon firmware according to the guide here. It got the verizon boot logo and bloatware just like vzw phone.
It work perfectly after the switch, 4g lte ,call or text all work.
But it will drop after a while of use. It can be a few hours or few minutes. I cannot receive call, cannot access internet, cannot make call...
If I restart it all will become working again for a while. Any recommendation how to fix it? Thanks again.
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Click to collapse
caiwh said:
I have a note 8 (SM-N950F/DS) for about three weeks now. I am using FP on AT&T network. When I just got it, especially while I was moving in the car or train, it would lost the data connection quite often even though showing full bar signal. I had to put it on air plane mode then switched back to reconnect.
Then after 1-2 weeks of use, the issue went away. I don't know it was due to the latest update (I am on Dec security patch now) or some kind of the phone learning my travel pattern.
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Click to collapse
Interesting, My phone lost it while I m at work... not even moving
For the longest time I thought was alone here. VZ Wireless Note 8 user here. My signal also just drops out of no where. When I look at my screen the 4G LTE upload up arrow is the only one turning up and down. Sometimes this issue will go away on its own after a few minutes or longer. But, randomly out of nowhere this started to happen. Few weeks now and counting I'm guessing it has something to do with a update that I recently upgraded to. I never had this issue when I first had my phone.....
I also have the problem.. Also Verizon branded Note 8.
I see a global Android update coming to possibly address this
From Android Headlines (AH):
"New Android Update For Galaxy Note 8 Improves LTE Stability"
"The latest Android update for the Galaxy Note 8 was designed to improve the stability of the phablet’s 4G LTE functionality as it specifically addresses a bug that occasionally caused interruptions of such connections, as revealed by a changelog published by Samsung earlier this week. The update appears to be rolling out on a global level, with its distribution officially starting on Wednesday, 15 days after the Seoul-based phone maker launched the latest security patch for the same handset."
Starting this month..
Anyone with ideas how to resolve this in the meantime?
I am still having this problem after oreo update.. I don't think I want samsung anymore..
Ok guys those who have Verizon, go to settings, mobile settings and change network to cdma and reset your settings. Turn off the phone, pop the sim tray out, power up ur phone while sim is out and turn off the phone again, this time push ur sim card in and turn on your phone. It should solve the problem of signal being dropped. Good luck.
I am from india and just bought this phone from ebay which was unlocked.Currently i could not perform any OTA .So can anyone help me with upgrading my andorid version 6 to android 7.Also i am facing issue with mobile network connectivity ,Most of the time my phone does not get it registered with network when i try to place the call or my call gets dropped in the middle of the conversation.Please help me.
Model:N920T
Andoid version : 6
Anyone else with network problems in some areas after Android 12? . In certain areas I my network drops, sometimes show me a good strength but when a call someone he answer and we can't hear each other. For calls works when he wants. Tried everything including Hard reset, Network reset, Clear cache, switching 5g/4g/3g/2g fresh install of official Samsung Rom via ODIN. Also did optimisation applications and nothing helps. I'm using s21 ultra, Exynos.I used my old iPhone Xs two days and works without any network issues. I go yesterday to my seller ( Saturn - A big technology shop) and they refuse to take me phone for repair/return because "They own the model too, they change the SIM card operator and nothing helps and it's a problem from this model, so they can't do anything" Can someone give me advice or some tips to try? I'm using the latest January update and can't go back to Android 11 rom because of new bootloader software...
I have it too. I have a good signal in big cities, but the village is a disaster. My past xiaomi was a good signal
ZPetrov said:
Anyone else with network problems in some areas after Android 12? . In certain areas I my network drops, sometimes show me a good strength but when a call someone he answer and we can't hear each other. For calls works when he wants. Tried everything including Hard reset, Network reset, Clear cache, switching 5g/4g/3g/2g fresh install of official Samsung Rom via ODIN. Also did optimisation applications and nothing helps. I'm using s21 ultra, Exynos.I used my old iPhone Xs two days and works without any network issues. I go yesterday to my seller ( Saturn - A big technology shop) and they refuse to take me phone for repair/return because "They own the model too, they change the SIM card operator and nothing helps and it's a problem from this model, so they can't do anything" Can someone give me advice or some tips to try? I'm using the latest January update and can't go back to Android 11 rom because of new bootloader software...
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I think that's how Samsung phones have it. I compared it to an older Samsug and it was exactly the same
Ive got issues after installing BULF. It seems samsung messed up some security patch somewhere. Certain websites will not load on 5G or 4G+ Data, while it works on wifi and on tether to other devices. Funny thing is, if I switch it to 3G data, site loads fine.... Tried my sim on Note 10+ 5g running A11...Sites load & Works perfectly. Ive even factory reset to no avail, thinking it was some kind of glitch or somthing...
I have this in Ireland as well. Didn't have the phone on android 11 for long but the network signal now on 12 is definitely not good. Actual phone signal is bad not to mind 4g/5g. Any fixes?
So many people are reporting with the 3/1 sweep by AT&T, that they are blocking almost all Unlocked phones: See: Downdector Link We personally have a S10 (G973U1). AT&T is saying on this list: AT&T approved phone list that it is supposed to work. But like many other people "calls" end immediately, but we can text and data work. It is some sorta ploy by AT&T to force us to upgrade our phones. They want us all to upgrade to S22s. Anyway I was ranting. Anyway, if you look at that link, they are saying that the phone has to be on the latest software. The last update from AT&T or the manufacturer was in January. I checked the firmware site, and Android 11 is the latest in January. I'm wondering if there is some hack to get us on to '12' or something. An update might solve this issue. We know that a new SIM does not work. Calls seem to be rejected on the network, just based on the phone model or Android version.
We are aware that a version 12 is out there for the phone, just that firmware is not for our US-unlocked model yet. But maybe it can be hacked?
Edit: It appears this thread may be linked with this older one... But it is ever more pressing issue now:
S10 Unlocked phone with AT&T Firmware here they explain how, and the problems with flashing. This was back in 2019, so I'm not sure if this will still work. Even then it didn't work for everyone. Some in that forum claimed that it did. AT&T seems to now be blocking from their calling network any phones not enabled with VOLTE and the extended AT&T services that are not present in Unlocked phones.
robertkjr3d said:
So many people are reporting with the 3/1 sweep by AT&T, that they are blocking almost all Unlocked phones: See: Downdector Link We personally have a S10 (G973U1). AT&T is saying on this list: AT&T approved phone list that it is supposed to work. But like many other people "calls" end immediately, but we can text and data work. It is some sorta ploy by AT&T to force us to upgrade our phones. They want us all to upgrade to S22s. Anyway I was ranting. Anyway, if you look at that link, they are saying that the phone has to be on the latest software. The last update from AT&T or the manufacturer was in January. I checked the firmware site, and Android 11 is the latest in January. I'm wondering if there is some hack to get us on to '12' or something. An update might solve this issue. We know that a new SIM does not work. Calls seem to be rejected on the network, just based on the phone model or Android version.
We are aware that a version 12 is out there for the phone, just that firmware is not for our US-unlocked model yet. But maybe it can be hacked?
Edit: It appears this thread may be linked with this older one... But it is ever more pressing issue now:
S10 Unlocked phone with AT&T Firmware here they explain how, and the problems with flashing. This was back in 2019, so I'm not sure if this will still work. Even then it didn't work for everyone. Some in that forum claimed that it did. AT&T seems to now be blocking from their calling network any phones not enabled with VOLTE and the extended AT&T services that are not present in Unlocked phones.
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Click to collapse
I was helped by a user to achieve ascendance onto the AT&T network. I'm not sure if I'm to reveal his name. We 1) go into Developers mode on the phone. 2) Hack the Kernel. 3) Flash the rom to the G973U (model)... with the AT&T firmware. So that the Wifi-Calling and 5G features would work, and AT&T would allow it on their network.
robertkjr3d said:
I was helped by a user to achieve ascendance onto the AT&T network. I'm not sure if I'm to reveal his name. We 1) go into Developers mode on the phone. 2) Hack the Kernel. 3) Flash the rom to the G973U (model)... with the AT&T firmware. So that the Wifi-Calling and 5G features would work, and AT&T would allow it on their network.
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Click to collapse
I've literally been searching for an answer to this for days now. My wife and I have S10's. I work far from home so I really need her phone working in case of emergency. Can you please point me in the general direction? Thanks!
Agreed, I didn't know such a thing was possible, but I'd love to hear more about this!
skrapmetal said:
I've literally been searching for an answer to this for days now. My wife and I have S10's. I work far from home so I really need her phone working in case of emergency. Can you please point me in the general direction? Thanks!
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Click to collapse
At first I had to use the Samsung Band Selector app from the Play store and go into More Network Settings > AT&T > Preferred Network Type and choose 3G. Unfortunately this killed LTE so all data and calls were going through H+. As I was mostly on wifi I could live with it since I could actually use the phone again.
Then Friday morning I checked for updates and there was the update to take me to Android 12. I took the update then when it finished it said it needed to reboot to connect new SIM to carrier services....it wasn't a new SIM. I let it reboot and everything was working with VoLTE again.
Hope this helps.
KennyG123 said:
At first I had to use the Samsung Band Selector app from the Play store and go into More Network Settings > AT&T > Preferred Network Type and choose 3G. Unfortunately this killed LTE so all data and calls were going through H+. As I was mostly on wifi I could live with it since I could actually use the phone again.
Then Friday morning I checked for updates and there was the update to take me to Android 12. I took the update then when it finished it said it needed to reboot to connect new SIM to carrier services....it wasn't a new SIM. I let it reboot and everything was working with VoLTE again.
Hope this helps.
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I appreciate you getting back to me. Unfortunately I am still on android 11 with a custom ROM and also this is a global phone so that app didnt work for me. I dont receive OTA updatez. I'll update to a new ROM and see what happens. Thanks
As the titled says, I have an unlocked Note 9 that was initially on sprint/Tmobile a few years ago and it is unlocked. I just switched to AT&T and i am able to use data and text, but i cannot make calls or access my voicemail. Says call ended as soon as i try and make a call or hold #1. No VoLTE or wifi calling options either. Do i need to flash the unlocked firmware to gain all features?
Please help!
Is it a N960U or N960U1? They are supported.
See attachment.
Similar here. ATT shut down 3G in my area. My carrier unlocked Note 9 is running Oreo 8.1. ATT is telling me i have to update to latest available software released for my device in order to access VoLTE. My wife who has an ATT firmware flashed note 9 never had an issue from day 1. There is something in the unlocked firmware (or att blacklisting unlocked phones) that is not allowing VoLTE. In the hidden menu 4636, my VoLTE is greyed out and OFF. I am trying to decide if i update to PIE and see if it is indeed unlocked. I just liked OREO appearance over PIE changes...
Pie is more secure and is patched against the worst rootkit that requires a reflash to purge.
You need to update your sim card more than likely. Try that first or try the wife's sim card in it.
I was sent a new Sim and it didnt work. i tried another sim running VoLTE and it didnt work. I resigned to updating and Im up to OneUI2 and it still isnt working. Ill go until ive ran out of updates, then call ATT back... they have "assured me" that my sim and account are fully provisioned. I remain skeptical.
Went through all updates, about 4hours worth and 7 iterations. Issue was not resolved until android 10, OneUI 1.0. VoLTE provisioning switch still greyed out but in "on" status. Still no VoWIFI, another restriction I have no desire to pursue.