S20 FE - AT&T - Samsung Galaxy S20 FE Questions & Answers

I have an s20 fe (sm-g781u) that I unlocked from at&t, but the carrier software does not switch when I put in a t-mobile sim card.
The latest t-mobile rom from sammobile was installed with odin(G781USQS9GWA4_G781UOYN9GWA4), but the phone still won't switch from the at&t software.
Does anyone know a way to get the phone to switch to the other carrier software? Almost every other samsung phone I've seen, switches software as soon as you insert a new sim card. Thanks.
-God Bless

Try clearing Sim toolkit data then network reset.
Reboot.

blackhawk said:
Try clearing Sim toolkit data then network reset.
Reboot.
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Did not help unfortunately.
I'm able to get service with verizon and t-mobile, but the boot logo and carrier apps still stay as at&t.
Also 5G does not work with t-mobile for some reason.

The boot logo isn't going to change as it's part of the firmware.
Not sure why it's not working. Never had to troubleshoot that. Look at hidden settings maybe although I think the sim card should automatically configure them.

blackhawk said:
The boot logo isn't going to change as it's part of the firmware.
Not sure why it's not working. Never had to troubleshoot that. Look at hidden settings maybe although I think the sim card should automatically configure them.
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Every samsung galaxy s phone i've seen(s8 and newer) always reboots and switches the carrier apps and boot logo when you change sim cards. This fe is the first one that won't switch.
I have several other at&t s20 fe's and they all seem to do the same thing.
Verizon has their own s20 fe model(sm-g781v) so I wonder if that has something to do with it.

CPR.OP546 said:
Every samsung galaxy s phone i've seen(s8 and newer) always reboots and switches the carrier apps and boot logo when you change sim cards. This fe is the first one that won't switch.
I have several other at&t s20 fe's and they all seem to do the same thing.
Verizon has their own s20 fe model(sm-g781v) so I wonder if that has something to do with it.
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Click to collapse
That's interesting. I know you can silence the AT&T start up sound.

CPR.OP546 said:
Every samsung galaxy s phone i've seen(s8 and newer) always reboots and switches the carrier apps and boot logo when you change sim cards. This fe is the first one that won't switch.
I have several other at&t s20 fe's and they all seem to do the same thing.
Verizon has their own s20 fe model(sm-g781v) so I wonder if that has something to do with it.
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Click to collapse
im actually looking into this also, plus why my verizon(sm-g781v) model will not pick up data network from my new ATT plan and SIM, but i still have talk and text

blackhawk said:
That's interesting. I know you can silence the AT&T start up sound.
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Whoa, how do you do that?

jdock said:
Whoa, how do you do that?
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Click to collapse
I wish I could remember. Did it about 2 or 3 years ago. It was one of the app notification settings I think. Been unable to find it again
It's buried deep...

hello colleague
you can update by odin.
a TMB system with android 13 / one ui 5 / one ui 5.1
but people mention that it occupies some operator applications.
That will depend if you don't have problems with AT&T operator services.

Related

Caller ID missing on s10? Smart call app available, not functioning as before

Does anyone know what happened to the Smart Caller ID with the S10? I've went through the settings and seemingly enabled everything relating to it, but am possibly missing something? I had it previously on my note 8 and certainly miss having it. Any help is greatly appreciated.
Here's a link to what I am talking about: https://www.samsung.com/global/galaxy/apps/smart-call/
I do not have the toggle below blocked calls as noted in this webpage, but I do have 'Smart Call' as an app and permissions enabled. Not sure if it's a Verizon block or something?
I have it with my unlocked s10 on tmobile.
Yeah, sadly I do not have that in call settings. I'm thinking it has to do with Verizon blocking it for some unknown reason, likely to push their premium plans. Really miss having that feature and would be willing to flash if need be to bring it back.
Upon looking further, it appears my thinking was correct, Verizon disables this feature. Interestingly enough, my phone was purchased from Samsung.com in full, no contract pricing, so it comes with the U1 firmware installed. Apparently something must've taken place when I setup the phone and Verizon installed it's own profile. Anyone know of a way to disable this or best method to avoid this so my phone appears as an unlocked phone? Would hate to have to flash via Odin seeing as I am running the U1 firmware already, just have Verizon somehow messing with the unlocked nature of the device.
On 3 in Denmark, I enable it and come back later and it has been disabled again.
iOSNick said:
Upon looking further, it appears my thinking was correct, Verizon disables this feature. Interestingly enough, my phone was purchased from Samsung.com in full, no contract pricing, so it comes with the U1 firmware installed. Apparently something must've taken place when I setup the phone and Verizon installed it's own profile. Anyone know of a way to disable this or best method to avoid this so my phone appears as an unlocked phone? Would hate to have to flash via Odin seeing as I am running the U1 firmware already, just have Verizon somehow messing with the unlocked nature of the device.
Click to expand...
Click to collapse
Does your phone boot up with the Verizon logo?
Delete.
thecarp1975 said:
Does your phone boot up with the Verizon logo?
Click to expand...
Click to collapse
Yes it does.
I work in a cell carrier in Canada, when you first put a sim in an unlocked samsung it downloads and reboots with their customizations.
your Verizon phone is NOT preloaded with U1 firmware!
your Verizon phone comes unlocked.

Galaxy note 9 at&t unlocked cant update using tmobile sim please help!

I have had a Galaxy Note 9 (SMN960U) that is AT&T unlocked for the past couple years. I only used a T-Mobile SIM since I am in a Family Plan and have not been able to update the phone at all since 2018. I've contacted both Samsung support as well as AT&T support and they told me that they would need to lock the phone back to AT&T for the updates to be installed. Is there anyone who has had this issue before and can help me update the phone to Android Pie? I've read some possible solutions is to insert an AT&T SIM into the phone or flash an unlocked firmware version but I'm not familiar with either. Please reply as soon as possible for anyone that can offer assistance.
Instead of writing a long how to, go to YouTube and search flashing firmware with Odin
Sent from my SM-N986U using Tapatalk
butchieboy said:
Instead of writing a long how to, go to YouTube and search flashing firmware with Odin
Sent from my SM-N986U using Tapatalk
Click to expand...
Click to collapse
Do you know by any chance if inserting an AT&T SIM will allow me to update the phone then reinsert my T-Mobile SIM?
I can't speak for AT&T, but I can say that the inverse works. I had an unlocked Note9 that I moved from T-Mobile to AT&T, and could no longer receive updates. I inserted an active T-Mobile SIM, rebooted, and was immediately able to update. It had to be an active T-Mobile SIM, or the switch wouldn't work. I just did it right now, so could work for you. It's a lot easier than trying to flash firmware.
circlecircletriangle said:
I can't speak for AT&T, but I can say that the inverse works. I had an unlocked Note9 that I moved from T-Mobile to AT&T, and could no longer receive updates. I inserted an active T-Mobile SIM, rebooted, and was immediately able to update. It had to be an active T-Mobile SIM, or the switch wouldn't work. I just did it right now, so could work for you. It's a lot easier than trying to flash firmware.
Click to expand...
Click to collapse
Do you have any idea if ordering a prepaid AT&T SIM and activating it would also help receive the updates on the phone?
KingAirman said:
Do you have any idea if ordering a prepaid AT&T SIM and activating it would also help receive the updates on the phone?
Click to expand...
Click to collapse
I would assume it would work if that SIM has service, both of the SIMs I used were prepaid. You'll know if it recognized the SIM, as after the reboot it'll show the AT&T splash on startup. If it doesn't, then the current state of the AT&T SIM won't work. That happened to me, I first tried a T-Mobile SIM whose service had lapsed.
If you do update, just make sure to keep going through the update process repeatedly. You have to install an update, let it reboot, and check for updates each time. You can't just jump directly to the latest version, which I think is part of the problem.
circlecircletriangle said:
I would assume it would work if that SIM has service, both of the SIMs I used were prepaid. You'll know if it recognized the SIM, as after the reboot it'll show the AT&T splash on startup. If it doesn't, then the current state of the AT&T SIM won't work. That happened to me, I first tried a T-Mobile SIM whose service had lapsed.
If you do update, just make sure to keep going through the update process repeatedly. You have to install an update, let it reboot, and check for updates each time. You can't just jump directly to the latest version, which I think is part of the problem.
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Click to collapse
Yup just inserted a prepaid SIM, activated it, and now going through the several updates I have missed in the past 2 years lol. Thanks for the assistance.

Disable prompt to reboot for new carrier settings

I have the S20 5g SE U1 unlocked from samsung. It keeps on automatically changing my CSC from XXA to att.. I don't want that. I can use it but only with that prompt in front of everything making usability pretty useless. I cannot find the system app which is causing it to try and change my CSC otherwise I'd disable it in ADB. Any ideas?
Edit: I tried the paid Chimera and it doesn't make it stay on XAA for the CSC>.<
the prompt will probably come from system UI.
so the prompt says what exactly ?
and do you have an AT&T simcard in the phone ?
3mel said:
the prompt will probably come from system UI.
so the prompt says what exactly ?
and do you have an AT&T simcard in the phone ?
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Click to collapse
The prompt tells me it detected a new sim card and that it wants to reboot for carrier settings :/ Its when I put in my at&t sim card. Is it okay to disable system UI?
"SERVICE PROVIDER UPDATE
Your device will restart to configure features supported by the new sim card."
kyky7kyle7 said:
The prompt tells me it detected a new sim card and that it wants to reboot for carrier settings :/ Its when I put in my at&t sim card. Is it okay to disable system UI?
"SERVICE PROVIDER UPDATE
Your device will restart to configure features supported by the new sim card."
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can't swear to it but it sounds like it just wants to put settings for mobile data and maybe the AT&T service options onto the phone.
I don't think it wants or could change your CSC.
someone mentioned in another post that your firmware is 99% identical apart from a few bits for the carrier / network. I'd just click it and let it reboot. if you swapped simcard afterwards it would probably ask you to do again.
you definitely DON'T want to try and disable system UI
3mel said:
can't swear to it but it sounds like it just wants to put settings for mobile data and maybe the AT&T service options onto the phone.
I don't think it wants or could change your CSC.
someone mentioned in another post that your firmware is 99% identical apart from a few bits for the carrier / network. I'd just click it and let it reboot. if you swapped simcard afterwards it would probably ask you to do again.
you definitely DON'T want to try and disable system UI
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Click to collapse
Every time I am forced to click it and it does change my csc to att until I take out the sim card.
you're probably on multi CSC firmware then with all the major US carriers included in it.
I don't the you need to worry about it changing, as you say it's matching the simcard you have in there (just AT&T are fussier than other networks to insist the phone does this for them) I'd guess.
if you had the dual sim model and didn't use a memory card it would be interesting to see what it would do with two cards in there the whole time.
3mel said:
can't swear to it but it sounds like it just wants to put settings for mobile data and maybe the AT&T service options onto the phone.
I don't think it wants or could change your CSC.
someone mentioned in another post that your firmware is 99% identical apart from a few bits for the carrier / network. I'd just click it and let it reboot. if you swapped simcard afterwards it would probably ask you to do again.
you definitely DON'T want to try and disable system UI
Click to expand...
Click to collapse
Yeah everytime it switches my csc which then disables my free hotspot :/ Samsung is selling out to carriers ever since 3.1 :'(
I was in the states in 2013 and remember T-Mobile wouldn't let me tether any devices to my phone beyond 100 or 200mb, and that was with me paying 150 dollars for just 2 months line rental. that would've paid for 1 years unlimited broadband in the UK. tight little gits your networks.

Question How to set calls and message on physical SIM and data only on Esim on S21 Ultra UI 4.

Hi guilds.
Was able to side load UI 4 and finally showing both SIM network after many tries. Is there anyway to set calls and message on physical SIM and data only on Esim on S21 Ultra UI 4 on T-Mobile . Both SIM from T-Mobile. TIA .
gotojanoo said:
Hi guilds.
Was able to side load UI 4 and finally showing both SIM network after many tries. Is there anyway to set calls and message on physical SIM and data only on Esim on S21 Ultra UI 4 on T-Mobile . Both SIM from T-Mobile. TIA .
Click to expand...
Click to collapse
The same way like ONE UI3.1
Nmc_alves® said:
The same way like ONE UI3.1
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Click to collapse
We don’t had that luxury on 3.1 in US lol. So I don’t had eSim feature . First time here so don’t know what to do?

Question Samsung Galaxy S21 Ultra won't work on Visible or Verizon

Hello, I'm having an issue getting my Visible service working on my Galaxy S21 Ultra SM-G998U1.
I purchased the phone on Swappa to replace my OP7 Pro, so I'm not sure exactly what carrier or model its from. But it should be factory unlocked and I can't call, text, or get data.
I tried installing a Verizon sim but still no service. T-Mobile sim works perfectly though. And I've tried all the troubleshooting steps like network reset, adding APNs, even factory reset.
When I boot the phone or cycle airplane mode, occasionally 5G will turn on for a few seconds and immediately disconnect again.
The APNs all install automatically when I put the SIM in but i just don't get any service, even though it's showing full bars.
go to your sim settings and deactivate it then reactivate it. What version of android are you running? is it rooted? Need more info on your phone. You're sure it's U1 and not an exynos model?
ffuser1 said:
go to your sim settings and deactivate it then reactivate it. What version of android are you running? is it rooted? Need more info on your phone. You're sure it's U1 and not an exynos model?
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Click to collapse
I have done that many times. I've also tried all different firmwares and SIMs from various carriers. Visible and Verizon are the only ones that don't work.
It's running Android 12 latest firmware. I believe it was originally purchased from Verizon but it's now on U1.
What does it say under service provider software version under software information? Vzw/vzw, vzw/vzw?
ffuser1 said:
What does it say under service provider software version under software information? Vzw/vzw, vzw/vzw?
Click to expand...
Click to collapse
Yes, four VZW codes.
It's strange because when I reboot the phone it will briefly connect to 5G then immediately disconnect and say "Emergency Calls Only". My SIM is activated and works perfectly in my OP7 Pro.
I can also use T-Mobile and ATT Sims in the Samsung.
Ok, so if I lock it to 5G or LTE then the data works. But calls and texts don't work no matter what.
So I figured it out. It seems to have been a hardware issue with the phone itself. I ordered a different S21 Ultra just to see if it would work and it accepted my SIM immediately. For whatever reason it wouldn't accept Visible or Verizon SIMs even though it was unlocked.
Bit frustrating I wasted several days trying to figure out the problem but at least I figured it out. Posting this here in case anyone has a similar issue with a second hand used S21 Ultra.
I had a s8 plus that wouldn't connect to visible and I went through all kinds of heck. I finally figured out that because the firmware was u1 that it was not compatible. When I flashed to a u firmware I was able to connect to visible. I also heard the nines and tens had the same issue. It may be that Verizon puts a block on u1 firmwares
Also I think I had to manually change a few settings for my APN after I change to a firmware ending in u.
Limon_Lime said:
So I figured it out. It seems to have been a hardware issue with the phone itself. I ordered a different S21 Ultra just to see if it would work and it accepted my SIM immediately. For whatever reason it wouldn't accept Visible or Verizon SIMs even though it was unlocked.
Bit frustrating I wasted several days trying to figure out the problem but at least I figured it out. Posting this here in case anyone has a similar issue with a second hand used S21 Ultra.
Click to expand...
Click to collapse
It's funny how Visible will not accept The s21 Ultra when I have net10 5G on Verizon towers. Been that way since I bought the phone new last year.

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