LG K20 wifi calling goal #1, goal #2 possibly flashing device to ATT stock android? - LG K20 Plus Questions & Answers

I have an issue surrounding my grandmothers K20.
For some reason every time I attempt to enable wifi calling it says try again later. I'm not sure if this problem is happening because we switched carriers to ATT from VZW. But, none the less after multiple attempts it wont enable. So I'm wondering if it is because it thinks it is a vzw phone (even though it is unlocked receiving service just fine from ATT).
My next question is.. How hard is it to just flash the phone over to ATT android installation. I know ATT has the k20. And I know that doing that would probably solve a ton of problems I'm experiencing.
Does anyone know if that is a thing I can do? also where do I go to download the ATT android software for the K20...
Another issue is the device keeps popping up saying "non verizon sim card" grandma doesn't need that notification. That will just confuse her.
Any help is appreciated.
Sincerely,
A newb.

Related

[Q] LG G2 Noob here.

hello everyone. i just recently purchased a vzw LG G2 and was wanting to use it with cricket. I know there are many threads and posts about this but after 2 weeks of searching and literally trying everything i figured it was time to throw in the towel and post my situation. So as stated above i bought a LG G2 VS980 about 2 weeks ago and i currently have cricket service unlimted text/talk 20GB data. ok so ill list my issues and what i have tried to correct them
1. From the start i put my sim card in do the whole activiation thing over wifi and when my phone comes on it displays and H which i know is 3G service. I live in chula vista CA. my husbands phone recieves 4G LTE so i know we are in a good area. Now this is where it gets weird, when im connected to wifi the H turns to 3G and even 4G LTE will pop up randomly. My data works fine just slow of course and i cansend texts and calls but no MMS unless i use a 3rd party text app like Chomp or Textra.
2. The infamous sim card icon with a "?" . Are there any solutions to fix this? i have called LG tech support, cricket tech, took it into a cricket store, called VZW almost everything besides taking to a cell phone shop.
OK so i have tried every APN there is out there i have tried the ATT,AIO wireless, cricket,vzw, literally all of them and no diffrence besides recieving a MMS rarely. And yes i restarted my device after every APN input. My phone is currently set on global, when i try to switch to CDMA/LTE after 20-30 seconds it comes up with no network and says i must go back to global. i switch it to GSM and i have the GSM only or UMT only (maybe)? or GSM/UTMS. Not sure which one i put exactly but i put the GSM/UMTS mode and comes up the RAT networks here im confused and really didnt mess with it to much. but it will sometimes say E.
I am also wondering can i system update? i attempt to but it says failed. i kinda know that you cant update a device on any service besides its original one.
Now what are the harms of rooting and flashing? does my phone lose value? like i said im a NOOB here and this phone is literally brand new. I appreciate ANY help i get. If you have any questions PLEASE contact me asap. There is probably some info i forgot the add but i will be waiting for any kind folks to help me out

How to reflash a Boost Mobile phone?

My sister bought an S4 off of eBay that was set for Boost Mobile and has had issues with it since she got it. She tells me that when she boots it up that a bunch of error messages pop up but once she closes them she can use the phone for calls and text as well as the internet but only on WiFi. She gets no mobile data and no GPS but does have a SIM card in it, however Boost is not able to activate the card.
She tells me that the phone is a former Sprint phone, and has contacted Boost about her issues but there has been no resolution. They have tried sending firmware to her phone but it has not helped. I do not have physical access to the phone as she is in Florida and I am in North Carolina. I have flashed my AT&T S4 before with no issues and want to try to help her. She however knows nothing about flashing phones but is willing to try it.
What I am trying to find out for her is what she could do to get her phone working the way it should. Would she have to flash it back to a Sprint phone and then to Boost again? What software and firmware would she need to do this? Would she lose her phone number or be able to keep it? I know nothing about doing this but can figure things out pretty well and can follow directions to do the job, and would also have to walk her through doing this herself. This is her only phone and she can't afford to get a different one right now so having this one working is important for her.
Any help with this would be greatly appreciated!
Metalneck said:
My sister bought an S4 off of eBay that was set for Boost Mobile and has had issues with it since she got it. She tells me that when she boots it up that a bunch of error messages pop up but once she closes them she can use the phone for calls and text as well as the internet but only on WiFi. She gets no mobile data and no GPS but does have a SIM card in it, however Boost is not able to activate the card.
She tells me that the phone is a former Sprint phone, and has contacted Boost about her issues but there has been no resolution. They have tried sending firmware to her phone but it has not helped. I do not have physical access to the phone as she is in Florida and I am in North Carolina. I have flashed my AT&T S4 before with no issues and want to try to help her. She however knows nothing about flashing phones but is willing to try it.
What I am trying to find out for her is what she could do to get her phone working the way it should. Would she have to flash it back to a Sprint phone and then to Boost again? What software and firmware would she need to do this? Would she lose her phone number or be able to keep it? I know nothing about doing this but can figure things out pretty well and can follow directions to do the job, and would also have to walk her through doing this herself. This is her only phone and she can't afford to get a different one right now so having this one working is important for her.
Any help with this would be greatly appreciated!
Click to expand...
Click to collapse
If the phone was originally on Sprint and someone flashed it to Boost Mobile, I can see why she is having problems. I would advise that the phone be returned and obtain other one that hasn't been modified. Boost Mobile will RESKU the Sprint Galaxy S4, S4 Triband and S4 Mini that haven't been modified at no charge and everything will work.
The full list of eligible Sprint devices are listed on the link below.
http://www.boostmobile.com/support/...phone/#which-sprint-phones-can-i-use-on-boost

Dropping calls on Tmo

Hey guys,
I'm here because my Mom recently switched to Tmobile and while things do work, she is having an issue with dropped calls. The APNs are set correctly, she has data service, I've set the "network mode" to LTE/GSM so it shouldn't be trying to connect to the CDMA network. What could be causing this? She's about ready to buy a new phone, but I know there has to be a solution to this. The phone works, and granted it's her phone not mine so I can't say for sure exactly what's going on when it happens but she claims it happens ALL the time (7 dropped calls in a single conversation with someone) and I can't imagine why it would/should happen at all. What's the solution here? I'd like to keep her on stock firmware if possible, but if necessary I can either root and/or flash cyanogenmod.
If it were my phone I'd first root, try that, see how it goes, then try CM, see if that does it... but she's not going to put up with that back and forth and repeated wipes. She's just going to get annoyed and buy a new phone despite the one she has being just fine. It MUST be somewhere in the software. I'm not sure if it's trying to switch to CDMA before realizing it can't, or if maybe it has something to do with VoLTE trying to kick in and connect to Verizon.
I'm pretty proficient with this stuff (been modding my Nexus' for years) so I can follow directions pretty easily, but I do need a pointer in the right direction because I can't figure out what's going on with this custom Verizon crap... Thanks!
Probably a non-issue, but is her cell signal strength really low?
We recently did the same thing - moved Verizon S5 to T-Mobile, but my wife has had no dropped calls. Her signal actually is better on TMO than VZW (hence the switch). Our TMO rep set the APN and network mode like you mentioned, so that shouldn't be your issue.
Verizon VoLTE shouldn't be a problem either since you have a TMO SIM, its not even connection to the CDMA towers.

New unlocked AT&T tablet SM-T727A for grandparents abroad, to flash or not?

Hello, please give a little advise.
I bought an UNLOCKED used Samsung AT&T S5e (SM-T727A), and another UNLOCKED used Samsung Sprint TAB A (2019) (SM-T517P) from eBay for my grandparents abroad in Argentina; mainly for the SIM capability to use with Whatsapp with me, and their grandkids all over the world.
I have no experience with LTE tablets, but have rooted phones here and there since 2012 thanks to you guys.
I feel very hesitant to root, or install roms on these tablets, since I won't be able to be there for them if anything happens, other than remote assistant pre-programmed for them to hit one button, but even then... the struggle a lot with basic things, and only know Whatsapp.
I have put my SIM card from T-mobile on my Note 8 here in the US on both devices, but although the T-mobile LTE text appears on top, none of the tablets changed Startup intro, or installed T-mobile apps/Removed AT&T or Sprint apps. The Sprint tablet shows an annoying Sprint OMADM notification, and the AT&T tablet won't let me use the dialer.
Both tablets can use LTE from T-mobile fine with great speeds, but need to use alternate dialer to make calls.
Should I install custom ROMS on these to remove their carrier's bloatware? Am I definitely tripping KNOX on them? Will installing these rooms, or unlocking bootloaders mess up with future updates, and leave my grandparents stranded?
Please help; what should I do?
unlocked AT&T Galaxy 727a tablet
I am wondering if you ever got a response to your questions? I too have the same tablet and I want to root it to remove the AT&T software because I also use T-Mobile. I am going to keep searching here in the forums. I don't think I want to flash a rom though as I kind of like the Samsung feel right now. Plus I only had it 2 days so far.
thenetvines said:
Hello, please give a little advise.
I bought an UNLOCKED used Samsung AT&T S5e (SM-T727A), and another UNLOCKED used Samsung Sprint TAB A (2019) (SM-T517P) from eBay for my grandparents abroad in Argentina; mainly for the SIM capability to use with Whatsapp with me, and their grandkids all over the world.
I have no experience with LTE tablets, but have rooted phones here and there since 2012 thanks to you guys.
I feel very hesitant to root, or install roms on these tablets, since I won't be able to be there for them if anything happens, other than remote assistant pre-programmed for them to hit one button, but even then... the struggle a lot with basic things, and only know Whatsapp.
I have put my SIM card from T-mobile on my Note 8 here in the US on both devices, but although the T-mobile LTE text appears on top, none of the tablets changed Startup intro, or installed T-mobile apps/Removed AT&T or Sprint apps. The Sprint tablet shows an annoying Sprint OMADM notification, and the AT&T tablet won't let me use the dialer.
Both tablets can use LTE from T-mobile fine with great speeds, but need to use alternate dialer to make calls.
Should I install custom ROMS on these to remove their carrier's bloatware? Am I definitely tripping KNOX on them? Will installing these rooms, or unlocking bootloaders mess up with future updates, and leave my grandparents stranded?
Please help; what should I do?
Click to expand...
Click to collapse
teacher006 said:
I am wondering if you ever got a response to your questions? I too have the same tablet and I want to root it to remove the AT&T software because I also use T-Mobile. I am going to keep searching here in the forums. I don't think I want to flash a rom though as I kind of like the Samsung feel right now. Plus I only had it 2 days so far.
Click to expand...
Click to collapse
I am still searching, this is my first LTE tablet, and I believe we ARE NOT meant to use ROMs for the WiFi variant on it (maybe wrong), so that leaves flashing lots of ROMS out... there maybe a few out there, but I doubt many DEVs have these devices available to work on.
Anyway, I decided against flashing roms for now; my only problem with the AT&T Tablet now is that the default Google dialer will not work unless it's with AT&T, so I have to use third party dialers now... no good.
I read somewhere that you can change something called the CSC of the tablet without rooting or flashing, to maybe get rid of the AT&T bloatware, and maybe T-mobile bloatware will let me use Google dialer??? I will try putting my T-mobile SIM today, and do a factory reset of the tablet with the T-mobile SIM in it. This has worked for me in the past with phones by the way, but never tried tablets before.
I may also try using Titanium Backup, and freeze some of these apps, but that will require rooting I believe, and I don't want to do that yet because I worry that unlocking the bootloader will leave that ugly "bootloader unlocked" message on every boot.
luck?
thenetvines said:
I am still searching, this is my first LTE tablet, and I believe we ARE NOT meant to use ROMs for the WiFi variant on it (maybe wrong), so that leaves flashing lots of ROMS out... there maybe a few out there, but I doubt many DEVs have these devices available to work on.
Anyway, I decided against flashing roms for now; my only problem with the AT&T Tablet now is that the default Google dialer will not work unless it's with AT&T, so I have to use third party dialers now... no good.
I read somewhere that you can change something called the CSC of the tablet without rooting or flashing, to maybe get rid of the AT&T bloatware, and maybe T-mobile bloatware will let me use Google dialer??? I will try putting my T-mobile SIM today, and do a factory reset of the tablet with the T-mobile SIM in it. This has worked for me in the past with phones by the way, but never tried tablets before.
I may also try using Titanium Backup, and freeze some of these apps, but that will require rooting I believe, and I don't want to do that yet because I worry that unlocking the bootloader will leave that ugly "bootloader unlocked" message on every boot.
Click to expand...
Click to collapse
Have you had any luck, I also have this tablet.
I am with the same problem, I have a Galaxy Tab S5e LTE tablet (SM727A), which is unlocked, but it does not allow me to make normal calls (like a cell phone) due to the AT&T call launcher. does anyone know any way to make calls? I have the tablet outside the USA
This thread is a year and a half old without an answer, doesn't seem right, I have similar issue why no answer?
I am in the US, and I can't get calls to work with Samsung s5e SM-T727UZKAXAA Unlocked Tablet.
Ordered this tablet for my elderly mother with the idea it could basically becone a 10 inch phone for her since she has serious difficulty seeing even the largest phone displays.
I took out her Motorola One sim and inserted it into the new tablet. After all the software updates were complete, I have network connectivity, data (seems slow tbh), and can eveb send/receive texts, but it will not receive calls? This tablet has that functionality, so I'm trying to figure out what exactly I'm missing?
I am using T-Mobile, and am on the Magenta MAX plan for all 3 of my lines including this one that I tried. Any help at all appreciated, thank you.
​
rich6630 said:
This thread is a year and a half old without an answer, doesn't seem right, I have similar issue why no answer?
I am in the US, and I can't get calls to work with Samsung s5e SM-T727UZKAXAA Unlocked Tablet.
Ordered this tablet for my elderly mother with the idea it could basically becone a 10 inch phone for her since she has serious difficulty seeing even the largest phone displays.
I took out her Motorola One sim and inserted it into the new tablet. After all the software updates were complete, I have network connectivity, data (seems slow tbh), and can eveb send/receive texts, but it will not receive calls? This tablet has that functionality, so I'm trying to figure out what exactly I'm missing?
I am using T-Mobile, and am on the Magenta MAX plan for all 3 of my lines including this one that I tried. Any help at all appreciated, thank you.
​
Click to expand...
Click to collapse
Buy a global version like SM-T725 to use full feartures.
Unlock version give you Data connection, sms, but you need connect to Samsung phone to call.
dangtoi1993 said:
Buy a global version like SM-T725 to use full feartures.
Unlock version give you Data connection, sms, but you need connect to Samsung phone to call.
Click to expand...
Click to collapse
so i had ordered one i had to cancel when i saw this post.
and wanted to ask. if there is any way to install android auto as a system app on this model?

AT&T forcing me to abandon my Galaxy S8!

Hello,
I am new to this site, and have a burning question I am trying to find an answer for.
So AT&T has been my carrier since about 2014. In July of 2019, I purchased an unlocked S8 from Amazon for about $350 Description says it is: Samsung Galaxy S8 64GB Factory Unlocked Smartphone - US Version (Midnight Black) - US Warranty - [SM-G950UZKAXAA]. In the settings, the model number is listed as: SM-G950U1.
Recently, I received a message from AT&T saying that they are shutting down their 3G network in February of 2022, and that my phone will no longer work on their network. I went into one of their stores and showed them that my phone operates on LTE, but I was told that is for data only and voice operates on 3G. I could not remember the VoLTE name at the time, but mentioned that my phone had the capability to operate on LTE. They refused to go thru settings with me, and told me that my phone will stop working in February. Period. End of story. Also, I was told the same thing that the message states, that they are sending me a new phone and will be deactivating my phone after 30 days.
Now some of my friends are laughing at me saying, "Dang free phones!" But I do not want a 5G phone (which is obviously what they are sending). I have my reasons and this is not what I wish to discuss here.
The issue is... I love my telephone!! It does exactly what I want, and I don't need anything new. Not to mention that I paid for it entirely, with no subsidy from AT&T. I specifically bought it unlocked with intentions of avoiding contracts and having the ability to switch carriers if I so choose.
I am pretty sure that I saw VoLTE mentioned in my settings a while back. But now a search on my phone finds nothing. I assume a firmware update hid this info from me.
So... what gives? Does anybody here know if this particular device can make/receive voice calls using VoLTE - on AT&T (or any other carriers) - simply by changing settings in the phone? Do I have any options to make my phone continue to operate as intended? With any carrier?
Sorry for the long post. Any advice would be greatly appreciated.
Sincerely,
Steve
willnotbecontrolled said:
Hello,
I am new to this site, and have a burning question I am trying to find an answer for.
So AT&T has been my carrier since about 2014. In July of 2019, I purchased an unlocked S8 from Amazon for about $350 Description says it is: Samsung Galaxy S8 64GB Factory Unlocked Smartphone - US Version (Midnight Black) - US Warranty - [SM-G950UZKAXAA]. In the settings, the model number is listed as: SM-G950U1.
Recently, I received a message from AT&T saying that they are shutting down their 3G network in February of 2022, and that my phone will no longer work on their network. I went into one of their stores and showed them that my phone operates on LTE, but I was told that is for data only and voice operates on 3G. I could not remember the VoLTE name at the time, but mentioned that my phone had the capability to operate on LTE. They refused to go thru settings with me, and told me that my phone will stop working in February. Period. End of story. Also, I was told the same thing that the message states, that they are sending me a new phone and will be deactivating my phone after 30 days.
Now some of my friends are laughing at me saying, "Dang free phones!" But I do not want a 5G phone (which is obviously what they are sending). I have my reasons and this is not what I wish to discuss here.
The issue is... I love my telephone!! It does exactly what I want, and I don't need anything new. Not to mention that I paid for it entirely, with no subsidy from AT&T. I specifically bought it unlocked with intentions of avoiding contracts and having the ability to switch carriers if I so choose.
I am pretty sure that I saw VoLTE mentioned in my settings a while back. But now a search on my phone finds nothing. I assume a firmware update hid this info from me.
So... what gives? Does anybody here know if this particular device can make/receive voice calls using VoLTE - on AT&T (or any other carriers) - simply by changing settings in the phone? Do I have any options to make my phone continue to operate as intended? With any carrier?
Sorry for the long post. Any advice would be greatly appreciated.
Sincerely,
Steve
Click to expand...
Click to collapse
Same issue with crickett (att).
got that txt msg, recently maybe december there was a firmware update that greyed out my network settings and hid some items.
i cant even change my prefered network, 3g 4g lte etc, its locked..
I have the 950u1 also
HOWEVER I have a s8 950U that I think has all these unlocked.
Im going to backup and odin flash the U firmware to the UI and see if it works.
Thats bull**** about doing this. greedy ****s..
I go with somone else if I have to.
willnotbecontrolled said:
Hello,
I am new to this site, and have a burning question I am trying to find an answer for.
So AT&T has been my carrier since about 2014. In July of 2019, I purchased an unlocked S8 from Amazon for about $350 Description says it is: Samsung Galaxy S8 64GB Factory Unlocked Smartphone - US Version (Midnight Black) - US Warranty - [SM-G950UZKAXAA]. In the settings, the model number is listed as: SM-G950U1.
Recently, I received a message from AT&T saying that they are shutting down their 3G network in February of 2022, and that my phone will no longer work on their network. I went into one of their stores and showed them that my phone operates on LTE, but I was told that is for data only and voice operates on 3G. I could not remember the VoLTE name at the time, but mentioned that my phone had the capability to operate on LTE. They refused to go thru settings with me, and told me that my phone will stop working in February. Period. End of story. Also, I was told the same thing that the message states, that they are sending me a new phone and will be deactivating my phone after 30 days.
Now some of my friends are laughing at me saying, "Dang free phones!" But I do not want a 5G phone (which is obviously what they are sending). I have my reasons and this is not what I wish to discuss here.
The issue is... I love my telephone!! It does exactly what I want, and I don't need anything new. Not to mention that I paid for it entirely, with no subsidy from AT&T. I specifically bought it unlocked with intentions of avoiding contracts and having the ability to switch carriers if I so choose.
I am pretty sure that I saw VoLTE mentioned in my settings a while back. But now a search on my phone finds nothing. I assume a firmware update hid this info from me.
So... what gives? Does anybody here know if this particular device can make/receive voice calls using VoLTE - on AT&T (or any other carriers) - simply by changing settings in the phone? Do I have any options to make my phone continue to operate as intended? With any carrier?
Sorry for the long post. Any advice would be greatly appreciated.
Sincerely,
Steve
Click to expand...
Click to collapse
press phone icon, then top right corner hit the 3 vertical dots.
select settings and it should be in there if you havent updated lately... they ****ed us and locked out network and volte settings.
djmdesign said:
Same issue with crickett (att).
got that txt msg, recently maybe december there was a firmware update that greyed out my network settings and hid some items.
i cant even change my prefered network, 3g 4g lte etc, its locked..
I have the 950u1 also
HOWEVER I have a s8 950U that I think has all these unlocked.
Im going to backup and odin flash the U firmware to the UI and see if it works.
Thats bull**** about doing this. greedy ****s..
I go with somone else if I have to.
Click to expand...
Click to collapse
Please let me know if this works. I thought about doing the same thing, but have not gotten around to trying it. In theory, it sounds like a solid plan. But I have a couple of concerns.
During a recent phone call, AT&T told me their system has flagged my IMEI and that my phone will stop working very soon. So, if the system flagged an IMEI as an unsupported device, will it even matter which firmware is installed? Or will their system just deactivate the phone at some point?
Second, if you install the 950U firmware in place of the 950U1, will the device become carrier locked at this point? That would really suck if it did.
BTW, I was able to lock preferred network to “LTE only” by dialing *#*#4636#*#* and entering Device information screen. Unfortunately, my phone would not complete a call when using LTE only setting. VoLTE provisioned toggle is greyed out, along with others. Seems to me that if a guy could self provision VoLTE, this would solve the issue.
I called AT&T tech support and spent 45 minutes trying to get them to provision VoLTE, but they could not, or would not do it. At first, they kept telling me that my phone is a 3G phone. I argued that I could change the radio to “LTE only” and that my sim card status showed LTE for “mobile voice network type”, which proves that the phone is indeed LTE capable for voice calls - but that it will not complete a call because it is not provisioned to do so. Eventually they told me that their system would not allow them to provision VoLTE for me, since it is flagged as an unsupported device. Which leads back to the first part of this post.
I also found some stuff on reddit about putting the phone into “engineering mode” and something about a Samsung tool that unlocks additional dialer codes. Have not tried this, tho.
At this point, I am just completely fed up with AT&T for this whole S8 situation, as well as other unrelated issues. I will most likely switch carriers for principle’s sake, even though I know other carriers play similar games.
Anyway, I am interested in whether or not you find a solution and would very much like to hear about it. Thank you for the response!!
willnotbecontrolled said:
Please let me know if this works. I thought about doing the same thing, but have not gotten around to trying it. In theory, it sounds like a solid plan. But I have a couple of concerns.
During a recent phone call, AT&T told me their system has flagged my IMEI and that my phone will stop working very soon. So, if the system flagged an IMEI as an unsupported device, will it even matter which firmware is installed? Or will their system just deactivate the phone at some point?
Second, if you install the 950U firmware in place of the 950U1, will the device become carrier locked at this point? That would really suck if it did.
BTW, I was able to lock preferred network to “LTE only” by dialing *#*#4636#*#* and entering Device information screen. Unfortunately, my phone would not complete a call when using LTE only setting. VoLTE provisioned toggle is greyed out, along with others. Seems to me that if a guy could self provision VoLTE, this would solve the issue.
I called AT&T tech support and spent 45 minutes trying to get them to provision VoLTE, but they could not, or would not do it. At first, they kept telling me that my phone is a 3G phone. I argued that I could change the radio to “LTE only” and that my sim card status showed LTE for “mobile voice network type”, which proves that the phone is indeed LTE capable for voice calls - but that it will not complete a call because it is not provisioned to do so. Eventually they told me that their system would not allow them to provision VoLTE for me, since it is flagged as an unsupported device. Which leads back to the first part of this post.
I also found some stuff on reddit about putting the phone into “engineering mode” and something about a Samsung tool that unlocks additional dialer codes. Have not tried this, tho.
At this point, I am just completely fed up with AT&T for this whole S8 situation, as well as other unrelated issues. I will most likely switch carriers for principle’s sake, even though I know other carriers play similar games.
Anyway, I am interested in whether or not you find a solution and would very much like to hear about it. Thank you for the response!!
Click to expand...
Click to collapse
Hi, I'm Newbie around here. I'd like to share my experience with ATT and my beloved S8+ this past few months:
Much like you and many others I started receiving texts from ATT by mid 2021 saying my phone would not work after Feb '22. Yes, every time they suspended my line I wasted 30~ 40 mins on the phone, listening how they would insist my S8+ was a 3G phone. It didn't matter that I offered to send them screenshots of my device showing the "VoLTE option" and "4G LTE" while both in the USA and Mexico. Thing is, they only based their saying on a st....id whitelist and all the reps are just talking heads.
I use an S8+ international version which is NOT on the dreaded list. and I am on the 300/year prepaid plan which allows roaming between Mexico and USA with no 50/50 usage limit.
I bought this phone on amazon for 350-ish bucks a couple of years ago and I love it!
I have to cross the Mexico/USA border very frequently and I need two separate numbers one on each country for business reasons so dual sim is a must. On the other hand, I receive lots and lots of phone calls while driving, this made me crave for android 8.1 when call recording was allowed by google, not the case anymore. None of these 2 features are available on the S8/S9 US based phones. I do not need 5G, I do not use social media nor watch videos on my phone but do get to use Pandora, Spotify, MLB radio and so on......... Enter SM-G955F/DS. I was able to change Samsung's CSC code to Israel so call recording is active for all those notes I cannot write down while driving and I get to carry just one device with 2 separate numbers thanks to a dual sim.
Ok, so back to my phone not being on the f... list :
Around Feb 10th, I got yet another email and SMS telling me it was my last opportunity to change or I MAY be disconnected after 2/22/22 ( funny choice of date huh?). I noticed that words on email and text messages had been changed from WILL NOT on Jul/2021 to MAY NOT work on Feb/2022. Since I know for a fact that my phone is VoLTE capable, I figured my S8+ would work as long as AT&T did not intentionally disconnected my line.
So, I took a crappy phoenix ATT phone and updated it's IMEI on my account via the ATT prepaid webpage. After getting "approval" from ATT's system, I put the SIM card in and used it for a full weekend. After that, I put the SIM card back to my S8+ and it is still going strong to date.
Today is March 1st, and I have been weary of ATT sneaking me out of their system but fortunately it has not happened yet. Needless to say, I have not updated my S8's IMEI on ATT's webpage and do not intend to do so.
Now, This "proves" that my phone is indeed capable of using VoLTE and HD , and all those things ATT said it would not do is just plain B.S.. if they disconnect me down the road I would definitely move to T Mobile although I would have some issues with the 50/50 international roaming and I still have 8 months left on my prepaid annual plan with ATT so, keeping my fingers crossed.
AT&T just wants to make more money out of selling new 5G devices while getting rid of their stocked 4G phones.
I wouldn't mind if they just plain out stated " If you do not buy from ATT then ATT will not support your device and will not sell service to you" then again, it would probably be a PR nightmare for them although they do that for WIFI calling anyways.
Ain't it funny how 2/22/22 is coincidentally a paycheck's time ( 2 weeks) after a new flagship phone (S22) was made available for purchase ?
Anyways, enough for ranting and conspiracy theories lol...
I have taken out and put back to my S8+ the SIM card two times in the past 9 days after 2/22/22 and my service is still in good standing.
Maybe if you got a new replacement phone that you don't like, you may swap back your SIM card and it MAY work just like mine is even if it is NOT ON THE INFAMOUS WHITE LIST.
Oldschoolguy said:
Hi, I'm Newbie around here. I'd like to share my experience with ATT and my beloved S8+ this past few months:
Much like you and many others I started receiving texts from ATT by mid 2021 saying my phone would not work after Feb '22. Yes, every time they suspended my line I wasted 30~ 40 mins on the phone, listening how they would insist my S8+ was a 3G phone. It didn't matter that I offered to send them screenshots of my device showing the "VoLTE option" and "4G LTE" while both in the USA and Mexico. Thing is, they only based their saying on a st....id whitelist and all the reps are just talking heads.
I use an S8+ international version which is NOT on the dreaded list. and I am on the 300/year prepaid plan which allows roaming between Mexico and USA with no 50/50 usage limit.
I bought this phone on amazon for 350-ish bucks a couple of years ago and I love it!
I have to cross the Mexico/USA border very frequently and I need two separate numbers one on each country for business reasons so dual sim is a must. On the other hand, I receive lots and lots of phone calls while driving, this made me crave for android 8.1 when call recording was allowed by google, not the case anymore. None of these 2 features are available on the S8/S9 US based phones. I do not need 5G, I do not use social media nor watch videos on my phone but do get to use Pandora, Spotify, MLB radio and so on......... Enter SM-G955F/DS. I was able to change Samsung's CSC code to Israel so call recording is active for all those notes I cannot write down while driving and I get to carry just one device with 2 separate numbers thanks to a dual sim.
Ok, so back to my phone not being on the f... list :
Around Feb 10th, I got yet another email and SMS telling me it was my last opportunity to change or I MAY be disconnected after 2/22/22 ( funny choice of date huh?). I noticed that words on email and text messages had been changed from WILL NOT on Jul/2021 to MAY NOT work on Feb/2022. Since I know for a fact that my phone is VoLTE capable, I figured my S8+ would work as long as AT&T did not intentionally disconnected my line.
So, I took a crappy phoenix ATT phone and updated it's IMEI on my account via the ATT prepaid webpage. After getting "approval" from ATT's system, I put the SIM card in and used it for a full weekend. After that, I put the SIM card back to my S8+ and it is still going strong to date.
Today is March 1st, and I have been weary of ATT sneaking me out of their system but fortunately it has not happened yet. Needless to say, I have not updated my S8's IMEI on ATT's webpage and do not intend to do so.
Now, This "proves" that my phone is indeed capable of using VoLTE and HD , and all those things ATT said it would not do is just plain B.S.. if they disconnect me down the road I would definitely move to T Mobile although I would have some issues with the 50/50 international roaming and I still have 8 months left on my prepaid annual plan with ATT so, keeping my fingers crossed.
AT&T just wants to make more money out of selling new 5G devices while getting rid of their stocked 4G phones.
I wouldn't mind if they just plain out stated " If you do not buy from ATT then ATT will not support your device and will not sell service to you" then again, it would probably be a PR nightmare for them although they do that for WIFI calling anyways.
Ain't it funny how 2/22/22 is coincidentally a paycheck's time ( 2 weeks) after a new flagship phone (S22) was made available for purchase ?
Anyways, enough for ranting and conspiracy theories lol...
I have taken out and put back to my S8+ the SIM card two times in the past 9 days after 2/22/22 and my service is still in good standing.
Maybe if you got a new replacement phone that you don't like, you may swap back your SIM card and it MAY work just like mine is even if it is NOT ON THE INFAMOUS WHITE LIST.
View attachment 5549949View attachment 5549951View attachment 5549953View attachment 5549955
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Yep... AT&T is full of it. I got sick of wasting my time and energy trying to fight this. I eventually just switched over to TMo, and I have been running around with my S8's radio set to LTE only. No issues whatsoever. Great cell service, $30 bucks a month cheaper, all fees included in the flat rate, and a free Netflix account, to boot.
See ya AT&T!!! I hope some group with the the gumption and time takes you to court for your deceptive trade practices. I hope you lose lots of customers, time, and money for your douchery!!!
Has anyone looked into potentially using ODIN to use AT&T's firmware on the unbranded G950U1 without rooting to see if it adds the VoLTE software feature? Does anyone know if that flashing will disable (permanently break) samsung pay? I don't want any rooting since that will permanently break samsung pay on the hardware.

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