Develop Bugs

OnePlus 5T LTE AT&T

Is there anyone out there that can assure me the OnePlus 5t i am getting direct from them will connect to AT&T LTE all bands? I am porting my number after I pick it up from FedEx and if this issue is still ongoing I will not pick up the package but have it sent back. I don't want to port my number from another carrier to AT&T or I will be stuck since I am coming from Verizon.
Thanks

dlmartin said:
Is there anyone out there that can assure me the OnePlus 5t i am getting direct from them will connect to AT&T LTE all bands? I am porting my number after I pick it up from FedEx and if this issue is still ongoing I will not pick up the package but have it sent back. I don't want to port my number from another carrier to AT&T or I will be stuck since I am coming from Verizon.
Thanks
Click to expand...
Click to collapse
You won't have any problems with GSM carriers. OP5t supports all bands for those. I'm using mine on ATT in New Hampshire and it works normally. On some custom ROMs you might need to play with the APN a bit but on stock it worked fine out of the box. VoLTE and Wifi Calling will not work, even if you enable the settings with a Magisk module, however, so don't count on that.

Yes. I can also attest, works just fine on AT&T LTE.

Works fine on AT&T
Sent from my ONEPLUS 3T

Works fine on ATT, but be prepared to deal with ATT support as this device isn't officially LTE certified. When you give ATT your IMEI, you will likely be limited to a HSPA+ connection and see H+ instead of LTE on your status bar. My OnePlus One worked just fine, but I needed a new sim for my OnePlus 5T and took over a dozen calls to ATT support to finally actually get LTE on my phone... but as more and more people get their phones activated on ATT it will probably become less and less of a PITA.

LTE+ actually shows several times for me on the 5t, but as others have said LTE works fine. I didn't have any problems getting LTE with mine. Switches sims and pulled LTE immediately

crakerjac said:
Works fine on ATT, but be prepared to deal with ATT support as this device isn't officially LTE certified. When you give ATT your IMEI, you will likely be limited to a HSPA+ connection and see H+ instead of LTE on your status bar. My OnePlus One worked just fine, but I needed a new sim for my OnePlus 5T and took over a dozen calls to ATT support to finally actually get LTE on my phone... but as more and more people get their phones activated on ATT it will probably become less and less of a PITA.
Click to expand...
Click to collapse
Just take the sim card out of your old phone and put it in the 5T and you should get the same service you got before
Sent from my ONEPLUS 3T

Woking fine on ATT LTE for my 5T. I popped my sim from my 6P and put it in the 5T. LTE came right up. As others have mentioned, I've read that the issue is that ATT is a prick about unlocked non-ATT phones. Just give them the IMEI of your old phone when porting over and it should be fine.

This is my experience during the last week:
Went to the ATT store , Clinton, Connecticut, bought new sim and activated my brand new 5T. Only got H+. I have an extra att phone, I put the bought and activated att sim from the oneplus in it. But I only get H+ on that phone. So I plan to go to att store and ask them to activate lte on that old phone. Now when I put the sim back into the oneplus . All I got was H+. In other words, what imei will it be for my oneplus? I would assume it will be the old phone imei since the sim was activated on it. I am kind of one track mind about lte, because I had trouble sending pictures over H+. I don't know why I seemed to have problem when other oneplus owners seemed to fix their lte easily. I have spent hours at the ATT store and the tech and manage Mike swore that they cannot help me. They referred to ATT tech support because my 5T is not recognized by ATT network.
PS. I took the 5t to the att store and bought the sim from them. They activated the oneplus imei so that might be the original problem. I really need to fix this.

AT&T can fix it. It's a HUGE pain, but it can be done. Do you have another phone on your account with the same size sim and LTE? My argument to ATT was this:
My wife has a S7 and gets LTE coverage. Phones side by side, the 5T states H+. I take the sim out of the S7 and put it in the 5T and boom LTE.
Support finally did something with the IMEI and ICCID on my account. After two reboots (no idea why two boots unless whatever he tried first didn't work), I got LTE with my sim on ATT. Don't bother with an ATT store as they have proven to be completely worthless. It's not an 'uncommon' problem. Keep contacting support until you get someone who can help you.
ctowne said:
Just take the sim card out of your old phone and put it in the 5T and you should get the same service you got before
Sent from my ONEPLUS 3T
Click to expand...
Click to collapse
I would have done that, but the OnePlus One has a micro sim and the OnePlus 5T has a nano sim.

crakerjac said:
AT&T can fix it. It's a HUGE pain, but it can be done. Do you have another phone on your account with the same size sim and LTE? My argument to ATT was this:
My wife has a S7 and gets LTE coverage. Phones side by side, the 5T states H+. I take the sim out of the S7 and put it in the 5T and boom LTE.
Support finally did something with the IMEI and ICCID on my account. After two reboots (no idea why two boots unless whatever he tried first didn't work), I got LTE with my sim on ATT. Don't bother with an ATT store as they have proven to be completely worthless. It's not an 'uncommon' problem. Keep contacting support until you get someone who can help you.
I would have done that, but the OnePlus One has a micro sim and the OnePlus 5T has a nano sim.
Click to expand...
Click to collapse
That was exactly my problem. I cannot believe the ATT store cannot and or would not fix it for me. Anyway I ordered a new sim for my number directly from
ATT and it worked for me. As the ATT tech support said the ATT store sim was for the wrong ICCID. Hope this helps someone.
Sent from my ONEPLUS A5010 using Tapatalk

55mb/s consistently on Straight Talk (Using At&t's towers) in Chicago. Shouldn't be a problem at all. Verizon on the other hand

HD Calling and Advanced LTE on AT&T

I noticed that when I make a call, the phone drops from LTE to HSPA or whatever their 3G band is called. I have an LTE SIM in there that had HD calling working on my Essential, Pixel2 XL, iPhone 8+, OP3, etc...
I was getting HD calling on all of those devices, and I did call AT&T support and had them add my IMEI to the line, so it should be working. Is there something that I have to do to enable it on the phone?
My concern is that if I am tethering while on a conf call, I won't get LTE and that's a problem.
Thoughts?

U had it on ur op3, I thought att did not allow volte on non att phones, I was never able to get it on my op3

I thought that I did, and I did on my Essential. Damn it, this sucks... Might have to go back to the Essential. Not having voice and data at the same time in 2018 blows... I am within the return window, although because of the credit card breach, the card they would need to refund to, has been canceled... What a cluster...

Yeah, ran through all sorts of hoops with several customer service reps. They say that VoLTE is enabled and provisioned properly to this SIM and IMEI, but I can't get it to work and it doesn't even show up as an option to enable it in any of the phone's menus... So either AT&T won't allow this BYOD device to have simlutanous voice and data on LTE, or maybe something in the beta isn't giving me the option.
Is anyone running the stock non beta OOS and getting VoLTE to work on AT&T?

I also gave them an IMEI from one of my other phones, an AT&T branded Note 5 that I own, and told them to put that one in and see if it worked, because that would tell me whether it is the phone itself not able to do it, or a provisioning thing on AT&T's end... That didn't work either...
I then went back to my Essential and had them enter that IMEI and it didn't work either...
I guess if I want wifi calling and voice and data at the same time, I have to pay a ton of money for an AT&T phone... Kinda bummed...

I talked to their support and put the SIM back in my Essential, and it fired right up and has VoLTE and doesn't drop to H+ when I make a call. Same SIM, I didn't even call to give them the IMEI. So something isn't supported on the OP5T.
Which sucks, because between the two phones, I really prefer the 5T. Oh well, I guess it wasn't meant to be... That's the downside of buying unlocked phones, you may miss out on some of the key features that you want on the carrier side...

Which ROM are you on?
Did you turn on VoLTE in settings if you are in stock OOS? If not you can try a custom ROM like Liquid Remix that have VoLTE working

Stock rom. If I have to install a custom rom to get the phone to work, not worth it. I will just return it and get my money back

AT&T only enables VoLTE and LTE+ on provisioned devices and supported, usually BYOD especially for a non-listed device does NOT apply. I was on AT&T when I got my 5T, tried my sim from iPhone 6S and a brand new sim I got at the store that I was assured would have VoLTE capability, but nothing. Not even wifi calling would work on my 5T. No options in Settings either to toggle it. They want you to buy the device from them is why they do this on unlocked phones.
I switched to T-Mobile and I had VoLTE, LTE+, and VoWiFi all on first boot with T-Mobile sim, with all of them listed in Settings on the same device with same software version as I was when on AT&T's network.
It's simply just a case of AT&T not supporting the device. Typically only carrier-sold phones for AT&T will have those capabilities, if you look it up you'll see many people say the same. Personally I'm glad I switched to T-Mobile because they don't lock down all of those features to try to get me to buy a phone from the carrier like AT&T did/does. I'd never go back to them at this point. Sorry but if staying on AT&T is the only option for you I'd look into how you could go about returning the phone to OnePlus and getting something AT&T-approved.

SquireSCA said:
Stock rom. If I have to install a custom rom to get the phone to work, not worth it. I will just return it and get my money back
Click to expand...
Click to collapse
EnveeAtlas said:
AT&T only enables VoLTE and LTE+ on provisioned devices and supported, usually BYOD especially for a non-listed device does NOT apply. I was on AT&T when I got my 5T, tried my sim from iPhone 6S and a brand new sim I got at the store that I was assured would have VoLTE capability, but nothing. Not even wifi calling would work on my 5T. No options in Settings either to toggle it. They want you to buy the device from them is why they do this on unlocked phones.
I switched to T-Mobile and I had VoLTE, LTE+, and VoWiFi all on first boot with T-Mobile sim, with all of them listed in Settings on the same device with same software version as I was when on AT&T's network.
It's simply just a case of AT&T not supporting the device. Typically only carrier-sold phones for AT&T will have those capabilities, if you look it up you'll see many people say the same. Personally I'm glad I switched to T-Mobile because they don't lock down all of those features to try to get me to buy a phone from the carrier like AT&T did/does. I'd never go back to them at this point. Sorry but if staying on AT&T is the only option for you I'd look into how you could go about returning the phone to OnePlus and getting something AT&T-approved.
Click to expand...
Click to collapse
I have an ATT sim from my company originally meant for an iPhone. VoLTE did not work on a google pixel cause the plan was not compatible. And since it is not my plan I can't make changes. I ordered the Oneplus to see if I could get it to work. And on a Stock ROM it will not work without Root and the Magisk Module to enable VoLTE. It will work on Custom ROMS such as Omni and Phoenix, both of with work for me with no issues.

In the end I returned the OP5T for a refund, and am back to using my Essential. While that is a non-AT&T phone that I bought right from Essential, it does support VoLTE out of the box, no issues. I don't get Wifi Calling, but I get HD Calling, works with my tethering plan, etc... Not sure why the Essential works but the OP5T doesn't, and it sucks because I liked the OP5T more... but it is what it is...

[IMG=http://ibb.co/cACzS7[/IMG]
i got it working on the 5T

IRatchett said:
Click to expand...
Click to collapse
It works on ATT, but the issue is that it doesn't do HD Calling, Wifi Calling, etc...
Make a phone call and while you are on the phone, you lose LTE and it drops to HSPA(3G)...
It's not a phone limitation, it's that AT&T won't allow it to have those features on their network. That is the ONLY reason I sent the phone back. Hopefully they address it with the OP6 and get in "approved" for AT&T and I can sell my iPhone 8+ and come back to Android...

SquireSCA said:
It works on ATT, but the issue is that it doesn't do HD Calling, Wifi Calling, etc...
Make a phone call and while you are on the phone, you lose LTE and it drops to HSPA(3G)...
It's not a phone limitation, it's that AT&T won't allow it to have those features on their network. That is the ONLY reason I sent the phone back. Hopefully they address it with the OP6 and get in "approved" for AT&T and I can sell my iPhone 8+ and come back to Android...
Click to expand...
Click to collapse
Sorry, but this will never happen in the foreseeable future.
AT&T purposely does this to all BYOD, so the OP6 is not going to change anything. They only offer these options for phones you purchase directly through them online or in an AT&T store.

EnveeAtlas said:
Sorry, but this will never happen in the foreseeable future.
AT&T purposely does this to all BYOD, so the OP6 is not going to change anything. They only offer these options for phones you purchase directly through them online or in an AT&T store.
Click to expand...
Click to collapse
Not entirely true. The Pixels you buy straight from Google, work. The Essential that I had, worked fine. There are phones that work just fine that you don't have to purchase through AT&T.

SquireSCA said:
Not entirely true. The Pixels you buy straight from Google, work. The Essential that I had, worked fine. There are phones that work just fine that you don't have to purchase through AT&T.
Click to expand...
Click to collapse
No I got it working, i was trying to show a screenshot

IRatchett said:
No I got it working, i was trying to show a screenshot
Click to expand...
Click to collapse
How did you get it working? I didn't want to root it and install a custom ROM, which I believe was the only way to get it working.
I tried using an IMEI from one of my other phones that I know worked, etc... Nothing worked.

You guys know that even if you show the switches and turn them on, that the LTE data doesn't work right? It's just showing the options and you can turn them on. I even have my OP5t added to my account as an ATT LG G6 and it doesn't work. Unless there is some agreement, like with the Essential Phone or Google's only official phone, you're out of luck.

xgerryx said:
You guys know that even if you show the switches and turn them on, that the LTE data doesn't work right? It's just showing the options and you can turn them on. I even have my OP5t added to my account as an ATT LG G6 and it doesn't work. Unless there is some agreement, like with the Essential Phone or Google's only official phone, you're out of luck.
Click to expand...
Click to collapse
Exactly, that's what I was getting at. I talked to ATT several times, tried different IMEI's and nothing worked. Regardless of what the options in the menu claim, it doesn't work. If you are just using your phone it will say LTE. But when you make a call, as soon as it connects, it switches to 3G or HSPA+... It won't do phone calls and LTE data at the same time.
If it did, I would have kept the phone. But that's a pretty big feature to have to live without for me. That and HD calling, Wifi Calling, etc...
I wish that OnePlus would do whatever they need to do to get the phone "certified" for ATT, but I don't see that happening...

SquireSCA said:
Exactly, that's what I was getting at. I talked to ATT several times, tried different IMEI's and nothing worked. Regardless of what the options in the menu claim, it doesn't work. If you are just using your phone it will say LTE. But when you make a call, as soon as it connects, it switches to 3G or HSPA+... It won't do phone calls and LTE data at the same time.
If it did, I would have kept the phone. But that's a pretty big feature to have to live without for me. That and HD calling, Wifi Calling, etc...
I wish that OnePlus would do whatever they need to do to get the phone "certified" for ATT, but I don't see that happening...
Click to expand...
Click to collapse
Yea, it's a pretty crappy situation. I came from a Moto x Pure to the OP5 and then to the OP5t and it was a big disappointment when I was stuck without LTE on calls. I had the Moto x on Verizon though. I really don't get why they restrict BYOD phones at all considering that if people use MORE data, they are likely to bump up their plans to the next tier. I kinda don't get the rationale. Anyway, it is what it is. I love my OP5t and hope to keep this phone for a while, unlike many past phones. But I live in a city, so rarely have issues here.

SM-G960F/DS on Verizon in the US

Hi all,
I have in my hands an unopened G960F/DS. I was considering this phone to replace an old model, it's long due. I thought I did my homework and was able to determine this phone worked on Verizon in the US, but a serious note on the box and further research suggests I may have been wrong. Although it would be nice to have new hardware, I am replacing the old one almost entirely out of a desire to flash a custom ROM on it. I was under the impression the lack of CDMA support wasn't a big issue given that Verizon (and everyone else) is phasing out CDMA and the phone still had LTE. Thus my choice of the F/DS. I am informed that opening the box and returning the phone will incur a charge, while keeping the box sealed and returning it will not. I am trying to decide to continue forward and test on Verizon's network here in the US or just return the thing, the choice lies in compatibility with this network. So now I get to play a guessing game.
I find myself in 4G LTE areas most of the time. I want to use data and make voice calls.
This 2-post thread suggests not much can be done:
https://forum.xda-developers.com/galaxy-s9/help/sm-g960f-verizon-network-t3856443
This guy demonstrating slower speeds, which I'm not too concerned about, but also HSPA+ in an area he usually gets LTE. In the video description he says after applying a software update it works 'fine':
https://www.youtube.com/watch?v=pkNXCK2iVO8
This site lists some band compatibility but doesn't say anything about not being able to use it with Verizon:
https://apn.gishan.net/en/apn/verizon/samsung-galaxy-s9
This site also lists band compatibility but warns about Verizon's strict device policy:
https://www.frequencycheck.com/carr...e-samsung-star/verizon-wireless-united-states
Is there any hope to use an unlocked S9 on Verizon in the US? I see this going one of several ways: 1) Everyone works out and I can make calls and use data and there are no issues and rainbows and unicorns 2) Data in certain places, no voice because something something "VoLTE" 3) Absolutely no data/voice whatsoever 4) I switch carriers I return this piece of junk and buy a phone that works. (might coincide with 2/3)
If I end up with (4), how can I avoid this issue in the future? I spent some considerable time deciding on this model, which has the features I want and an unlockable bootloader. Will the S10 have this issue? What about the Note 9? I apologize for the noobposting, and if I missed a thread that answered this question. Thanks for any help you can provide, I sincerely appreciate it.
Edit: This thread asks a similar question but isn't specific and neither are the answers:
https://us.community.samsung.com/t5/Galaxy-S9/Unlocked-galaxy-S9-on-Verizon/td-p/277493

I have been using a G965f/ds on Verizon Wireless.
VoLTE, vowifi, text, and data work after rooting.
Having done a speed test with a U device and on the g965f/ds, the speed I can receive seems equal.
I haven't had issues with making LTE calls in my area.

CynicalHeight00 said:
I have been using a G965f/ds on Verizon Wireless.
VoLTE, vowifi, text, and data work after rooting.
Having done a speed test with a U device and on the g965f/ds, the speed I can receive seems equal.
I haven't had issues with making LTE calls in my area.
Click to expand...
Click to collapse
Thanks for the feedback. Are you based in the US? How did you activate the phone? I found instructions on LTE activation here:
www . verizonwireless . com/businessportals/support/how_to_use/activate_4g_lte.html
And an IMEI checker, which fails when I enter what I find on the box my phone is in:
www . verizonwireless . com/od/prepaid/bring-your-own-device/#/checkDevice
Edit: It also looks like they have a second page that checks IMEI (this also fails for me). Can you tell me what either of these pages say when you enter your IMEI?
www . verizonwireless . com/onedp/byod#/

I reside in the US.
The imei of my g965d/fs failed when inputted in to their system;however, the SIM is all that's needed for Verizon wireless to work on it. Initially, though, you might need to insert the SIM card into another imei Verizon wireless compatible device only to allow the system to have that imei in the system for your number. Since, you already have vzw, I'm assuming you already are activated on it with a device, so moving sims is the next step.

Thanks for your input. Anyone else have experience with this device on Verizon's network?

I could have written this exact post.
jmtroth said:
Thanks for your input. Anyone else have experience with this device on Verizon's network?
Click to expand...
Click to collapse
I am trying to do the same thing with the same model Note 9, SM-N960F/DS. I was told by Verizon Level 2 tech rep that simply installing an activated SIM would make the phone work, obviously 4gLTE only since there are no CDMA bands. He checked the 4 bands Verizon uses for their 4gLTE and the F/DS model has all 4 of them.
I am in the same boat as you though. IF I try it and it doesn't work I have to return and lose $125 or switch to GSM network (AT&T or TMO) I am also trying to decide whether to take the gamble. This Level 2 Tech guy didn't mention anything about having to root the phone.
I would also like to know about the advisability of attempting this. I thought I read somewhere that this phone won't have any warranty in US anyway but I am not 100% sure about that. Sellers seem to want to gloss over that issue.

I'm very very interested in this

to put this to bed, you cant use any F galaxy phone on verizon and get full usage. vzw is a CDMA based carrier whereby voice is transmitted primarily via CDMA and data over GSM (which includes voLTE, obviously). The F model do not have CDMA radios in them. You CAN get data to work and therefore voLTE as long as you can flash the vzw CSC to get the phone to install the voLTE app. Long story short, dont try it. Its a fruitless endeavor. I mean, do what you want, i guess, but dont expect for the F to work well, or at all on vzw. There is nothing anybody on xda or anywhere can do to alleviate that.

I had straight talk using Verizon towers on note 8, my note 8 broke, I missed flashing custom ROMs, I bought a note 9 n960f, read online it would work too. I inserted sim. Did not get data or calls. Flashed custom ROMs found a lineage is rom that worked with data for like 2 min then quit. I kept Singapore rom csc stock radios I guess from Singapore, guy on here said he flashed Singapore stock Odin flash and ended up making his work but didn't work with my straight talk Verizon sim. My buddy came over and he uses visible network on Verizon towers we popped in his sim and it worked flawlessly on stock Singapore csc/flashed custom rom from xda. I switched, it's cheaper, it works and first month was 5$ no fee to transfer my number over. Visible is great, join a group and it's 25$ a month.

Samsung GalaxyNote 10+ and AT&T problems only 3G phone calls and data

we have 3 Note 10+ my son ordered his the day of the preorder release. he has the 256 version and my wife and i got the 512 version.
Upon my wife and I getting the phones we replaced the sim chips with new ones from AT&T instead of removing the ones in our Pixel 3xl. I noticed that AT&T Visual voice mail wasn't there but after loging into our voice mail account it downloaded a different visual voice mail program.
however we are having signal problems, I noticed that we didn't Get Voice over WIFI, Advanced Messaging, Volte etc. I called into support 611 and explained and they said that they would re-register our phones to turn them off for a few min and back on and should be ok.
That didn't' accomplish anything. I talked with an engineer that I know that works for AT&T and he said that my son's phone is provisioned for VOLTE with torch i think but not in the account screen. My wife and my devices are not provisioned for VOLTE HOWEVER NONE of our phones are connecting for voice or data to 4G LTE only 3G. He didn't know why but would check further.
after complaining to OOP with Samsung and being within the return window they said that we could order from them the branded AT&T phones and return our unlocked phones.
I realize that we will get stuck with the bloatware, but if we are getting 4G LTE VOLTE etc. maybe that is what should be done.
If we do that can we still get them unlocked and what do we loose by doing this? I appreciate the work everyone is doing here and I think hopefully I can get an honest answer vs everyone pointing the finger at everyone else.
My big concerns are:
If I keep these what do we loose?
How bad is the bloat ware?
If we change to T Mobile or others later can we, or if we travel, get AT&T to unlock the phones
If I keep these phones and flash the AT&T files will we:
Then get access to the programs and services we don't have now?
Get over the air updates as they are released?
I would highly appreciate any advice
Thank you for everyone's help in advance

I was getting horrible battery usage on my At&t branded Note 10+. What I did was flash the U1 unlocked firmware, set things up, made a few calls, sent a few text so things provisioned to At&t. I then flashed At&t csc with odin and this gave me 4GLte..wifi calling..video calling..advanced messaging..and volte
Sent from my SM-N975U1 using Tapatalk

but your phone was branded AT&T right so theIMEI number is active in their system

I had the same issue - thankfully, I was able to test a friend's SIM card from AT&T and his worked! I saw an obscure reference (see below) to it being an issue with older SIM cards. I'm heading to AT&T store to replace mine tonight.
https://forums.att.com/t5/Apple/Cellular-data-not-working/td-p/5731162

tommyloui said:
but your phone was branded AT&T right so theIMEI number is active in their system
Click to expand...
Click to collapse
Yes it is At&t branded.
Sent from my SM-N960U using Tapatalk

Question Changing carriers in the US -- also change the firmware?

I have a Samsung S21FE (Snapdragon) model SM-G990U bought from Samsung and originally configured for Verizon. I've used it on the Verizon network since I got it, but just recently switched to T-Mobile. The phone is still using the Verizon firmware however data IS working, as well as calling, texting, and voicemail. But there are still a few things that don't seem quite right and I'm wondering if a firmware update would solve it (also, what is the best to update the firmware?).
For instance, I used to see "5G UW" when I was on Verizon, and now on T-Mobile it should display "5GUC" but I'm just seeing "5G". Also, when it boots up I still see the Verizon logo. Also, even when it's displaying "5G" I am not getting true 5G speeds --> more in the range of 70-100 Mbps. I use the OpenSignal app and it tells me other T-Mobile users in my area are getting way faster speeds. I thought the S21FE had all the necessary bands to get full 5G but either it doesn't, or maybe the firmware is blocking it?
For comparison, we also just switched my daughter's Galaxy S21 at the same time from Verizon to T-Mobile. On her phone, the first time she booted up with the T-Mobile SIM card, she started seeing the T-Mobile logo on bootup and now she sees "5GUC" next to her signal (I do not).
In the Software information section under Service provider software version, my phone has: SAOMC_SM-G990U_OYN_VZW_13_0017 VZW/VZW/VZW.
My daughter's S21 now says "TMB" in her software version.
It seems like her phone automatically updated the firmware over to T-Mobile but mine did not.
Again, not sure if a manual firmware update would solve any of the above issues, and what is the best way to change the firmware. Anyone have any experience with switching carriers on a S21FE? Did you update firmware?

skokielad said:
I have a Samsung S21FE (Snapdragon) model SM-G990U bought from Samsung and originally configured for Verizon. I've used it on the Verizon network since I got it, but just recently switched to T-Mobile. The phone is still using the Verizon firmware however data IS working, as well as calling, texting, and voicemail. But there are still a few things that don't seem quite right and I'm wondering if a firmware update would solve it (also, what is the best to update the firmware?).
For instance, I used to see "5G UW" when I was on Verizon, and now on T-Mobile it should display "5GUC" but I'm just seeing "5G". Also, when it boots up I still see the Verizon logo. Also, even when it's displaying "5G" I am not getting true 5G speeds --> more in the range of 70-100 Mbps. I use the OpenSignal app and it tells me other T-Mobile users in my area are getting way faster speeds. I thought the S21FE had all the necessary bands to get full 5G but either it doesn't, or maybe the firmware is blocking it?
For comparison, we also just switched my daughter's Galaxy S21 at the same time from Verizon to T-Mobile. On her phone, the first time she booted up with the T-Mobile SIM card, she started seeing the T-Mobile logo on bootup and now she sees "5GUC" next to her signal (I do not).
In the Software information section under Service provider software version, my phone has: SAOMC_SM-G990U_OYN_VZW_13_0017 VZW/VZW/VZW.
My daughter's S21 now says "TMB" in her software version.
It seems like her phone automatically updated the firmware over to T-Mobile but mine did not.
Again, not sure if a manual firmware update would solve any of the above issues, and what is the best way to change the firmware. Anyone have any experience with switching carriers on a S21FE? Did you update firmware?
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What's the model number?