Question Changing carriers in the US -- also change the firmware? - Samsung Galaxy S21 FE

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?
Click to expand...
Click to collapse
What's the model number?

Related

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.

Cricket canceling 7T on their network?!! As of Feb 2022

I made a call and got a message that my phone would no longer work on their network since they are upgrading things. This phone isn't that old. I wonder if their system doesn't recognize it. The lady said their system was showing it was a 2g phone so I told her it handles 4g. She said on Cricket it's only able to use 3g. Does anyone know if this is true. I don't trust some operator in another country reading off a script. It sounded like they want everyone to buy phones from their website. I can't imagine a relatively new phone not having the right band. Maybe there is a setting I need to tweak or flash onto my phone if I'm only using 3g on Cricket. I'm sure I've seen my antenna say LTE. Or maybe Cricket is screening out non Cricket phones.
Check it's specs.
If it supports the needed 4G bands it may need to be reconfigured. I haven't a clue how to do that.
Maybe Access point names but it may go deeper than that.
I'm going to google and see exactly what specs Cricket will require. I think you're right and maybe something to reconfigure. I can't imagine Cricket shutting off tons of new ish phones just because they aren't bought from Cricket. Ran a speed test now and got 2.77mbps download and 8.49mbps upload. I am showing LTE now which means I'm not on 3g as she was saying now. I bet it's a sales gimmick to scare less savy folks. What mean loose phone signal in Feb hehehe.
Edit: I was on wifi when I got the message so maybe when I phone is on wifi and not using their LTE network it doesn't detect anything which is why they told me I have a 2g phone. When I shut off wifi LTE popped right up so it's probably a glitch in their way of informing us.
Edit2: Spoke to a tech at Cricket and he said my phone currently isn't compatible with them aaahahahhaha dumb. I told him I'm currently using it on LTE just fine no issues. He didn't have anything to say when I asked him since I'm not using 3g then it shouldn't affect me. He just said he wants me to have great service so buy another phone from Cricket. BS
Only HD1905 works
bhaliyo said:
Only HD1905 works
Click to expand...
Click to collapse
I have HD1907 and it's currently working on LTE. Are you referring to not working in the future or currently working?
jeffrimerman said:
I have HD1907 and it's currently working on LTE. Are you referring to not working in the future or currently working?
Click to expand...
Click to collapse
Not working in the future. Here is the list of devices can work after Feb 2022.
bhaliyo said:
Not working in the future. Here is the list of devices can work after Feb 2022.
Click to expand...
Click to collapse
That link keeps rerouting to an ATT samsung S21 advertisment. I'll try to google the list
jeffrimerman said:
That link keeps rerouting to an ATT samsung S21 advertisment. I'll try to google the list
Click to expand...
Click to collapse
See the attachment above
Yes I
bhaliyo said:
See the attachment above
Click to expand...
Click to collapse
Yes I was able to download that list when I googled. Judging by what it said these are phones that are tested and will work, not so much that other phones won't work. My phone was originally branded for Tmobile so I'm sure they wouldn't have tested it but it would have only had a different OS with Tmobile bloatware which I took off. The cricket people said their LTE isn't changing so I shouldn't have an issue but it will be interesting to find out. They must have just been looking at this list which is why they said my phone currently isn't compatible.
Funny this was asked but no answer given from ATT. I'll keep googling
OnePlus Community
Introducing our new OnePlus Community experience, with a completely revamped structure, built from the ground-up.
forums.oneplus.com
I read a discussion here from 2019 someone else asked and the different variants are by region as they usually are for the different LTE frequencies. 1905 is North American, 1907 is Tmobile in North America so I would imagine my LTE frequency is still going to be fine. Those that bought Chinese phones etc probably not.
This is weird. The current ad for it on Amazon says it's currently not compatible with ATT and Cricket. I wonder if me flashing another OS for North America or USA I forget is why it works fine? Maybe I'm screwed hehe
*** NOTE: Due to changes with AT&T and Cricket, this phone currently cannot be used on AT&T/Cricket. Compatible with T-Mobile and all GSM Networks along with their compatible MVNO networks such as Red Pocket GSM, Ultra Mobile, Mint Mobile, Ting GSM, Google FI and many others. This phone is NOT compatible with Verizon, Cricket or AT&T. Please verify with your network to ensure complete compatibility.
Spoke to a tech at Cricket and he said my phone currently isn't compatible with them
Click to expand...
Click to collapse
I work at a prepaid carrier store (not Cricket) and am having to tell customers the same thing. It's not just about if your phone has the radios necessary, they have to have the IMEI approved in their system and if it's not then you can possibly escalate to someone who can help get it approved but you probably won't get very far. I can't activate my own OnePlus device with my company either, even though it's currently running on our parent network. I have spoken with internal support folks about it multiple times and have gotten nowhere so I gave up.
jeffrimerman said:
I can't imagine Cricket shutting off tons of new ish phones just because they aren't bought from Cricket.
Click to expand...
Click to collapse
Believe it. It sucks and it sounds insane but it's really happening. For me? I have to tell everyone with a Samsung Galaxy S5-S10 that they have to buy a new phone to be compatible with our new network changes. And I can tell you here that it's (probably) not the sales rep lying to you to make a commission sale, our tools are indeed forcing us to do that.
jtaylor991 said:
I work at a prepaid carrier store (not Cricket) and am having to tell customers the same thing. It's not just about if your phone has the radios necessary, they have to have the IMEI approved in their system and if it's not then you can possibly escalate to someone who can help get it approved but you probably won't get very far. I can't activate my own OnePlus device with my company either, even though it's currently running on our parent network. I have spoken with internal support folks about it multiple times and have gotten nowhere so I gave up.
Believe it. It sucks and it sounds insane but it's really happening. For me? I have to tell everyone with a Samsung Galaxy S5-S10 that they have to buy a new phone to be compatible with our new network changes. And I can tell you here that it's (probably) not the sales rep lying to you to make a commission sale, our tools are indeed forcing us to do that.
Click to expand...
Click to collapse
I'm just wondering why they are saying my phone currently isn't compatible when it obviously is. It works great. Even streams HD in an instant on Crickets network. Corporations aren't super efficient at checking all things under the sun. They are just checking phones they approve. They told me the same thing that my imei currently doesn't work but it does. Unless they are trying to be like Verizon and only allow specific phones in the future I'm still thinking once they shut off 3g then when someone wants to switch from Tmobile to Cricket with their unlocked working fine non 3g phone they still can or are they saying no they are going to be like Verizon and it has to be a Cricket branded phone. I don't think it's the later. I think they are just saying what will work, but not saying what won't work. Let's find out =( hehe
Read a discussion from 8 months ago. Seems like most are fine, one guy with a 1905 had issues on ATT. One guy did what I did so maybe that's why mine is fine for now. I haven't had issues like dropped calls etc but maybe the real issue I will have if Cricket adds wifi calling and VoLTE is if they use a specific frequency and the 1907 is missing it then I won't be able to use those. If Cricket only uses VoLTE then yes I am screwed in February =/
https://www.reddit.com/r/oneplus/comments/kf0hfo
"I am currently using a 7t that was advertised as factory unlocked on ebay, when it showed up and I turned it on the big bright pink Tmobile boot logo came by. I did some research and found the convert to international/global thread on xda, I got rid of the crap hydrogen OS that came with the "unlocked" Tmobile phone. Using ADB I was able to flash the international firmware Oxygen OS and haven't had any problems with at&t now."
If it's an IMEI issue, flashing with the hd1905 fw probably won't help matters. I have a hd1905 on cricket since 2019, everything but wifi calling works. The same cricket sim in a samdung s9+ yields working wifi calling.
So while the hd1905 and 1907 are essentially the same hardware devices, the serial #/imei may determine what happens come 2022.
gpz1100 said:
If it's an IMEI issue, flashing with the hd1905 fw probably won't help matters. I have a hd1905 on cricket since 2019, everything but wifi calling works. The same cricket sim in a samdung s9+ yields working wifi calling.
So while the hd1905 and 1907 are essentially the same hardware devices, the serial #/imei may determine what happens come 2022.
Click to expand...
Click to collapse
Yup, I'm wondering if the hardware or the IMEI will determine things. I didn't even know Cricket had wifi calling. Did Cricket even let you download the wifi calling app but it didn't work or did they not allow you to download it?
Edit: I looked it up. Looks like wifi calling will work on phones that have it built in to their OS settings. I probably won't use it if I end up buying another OnePlus phone. I wonder if there are any phones where wifi calling is working on Cricket that isn't on the list but is in the OS settings.
Wifi calling app? The s9+ was hybrid flashed. Everything but the main OS came from the U firmware (carrier), while the rom came from U1 fw. Result was working carrier features (volte/wifi calling) without the bloat.
gpz1100 said:
Wifi calling app? The s9+ was hybrid flashed. Everything but the main OS came from the U firmware (carrier), while the rom came from U1 fw. Result was working carrier features (volte/wifi calling) without the bloat.
Click to expand...
Click to collapse
The s9+ is probably the same as the s9 as far as the wifi calling since "+" isn't mentioned on their list.
Huh? It's right under the s9.

Lineage phones that will work with AT&T 5G?

Dear Experts,
The cell phone I've been using
here in the USA is a Motorola G7 Plus,
with the Lineage 17.1 OS.
Yesterday, March 2, 2022, I couldn't
make a phone call. Immediately, the
call would end, and a message displayed:
"Call ended".
The folks at the ATT store in the mall
immediately suggested that I get a new phone.
My question was, why was I not warned about this?
It's been planned for a while now.
T-Mobile, Verizon, AT&T, and Sprint 2G/3G/4G LTE network shutdown dates: the sunset!
T-Mobile, Verizon, AT&T, and Sprint 2G/3G/4G LTE network shutdown dates: the sunset!
When are the carriers retiring their legacy 2G/3G/4G LTE networks? Here are the dates...
www.phonearena.com
However, ATT docs says that the G7 Plus will work.
Mysterious.
https://www.att.com/idpassets/images/support/wireless/Devices-Working-on-ATT-Network.pdf
After swapping my SIM card with various
phones, turns out the issue is the Lineage OS.
Results:
...
Motorola G7 Plus, Lineage 17.1
- call ended
Motorola G7 Plus, Lineage 18.1
- call ended
Samsung Galaxy A32, out of the box Android
- calls work
Motorola G7, out of the box Android
- calls work
...
This is disappointing, as I like to use Lineage.
I've been looking at the Lineage compatible devices:
Devices | LineageOS Wiki
wiki.lineageos.org
Of the 165 phones there, many look to be a
number of years old, and would not be a
candidate to work with ATT 5G.
q1:
Is there a setting that I need to tweak to
make Lineage work with ATT 5G?
q2:
What current phones can be converted to Lineage, and
are now compatible with ATT 5G?
Is there a list/link?
Or does anyone speak from experience?
Thanks a lot
I found out that it wasn't necessarily my phone. Over the past 5 -7 days in my area and maybe everywhere, ATT was doing switching to eliminate all 3G. I had been warned last June that this was going to happen and even tho my phone was VoLTE and 4G, consumer cellular was adamant about making me get a new phone, so I bought their samsung A01for $100 just to shut them up. Consumer Cellular actually shut my service off, forcing my hand and that was when I was living down in Alto Texas. However, I didn't like their phone because it was all googled up and I went back to using my Moto G7 plus with LineageOS. It has been the phone I depend on and I like it best. When my phone stopped working a couple days ago, it was right after an update, so I assumed the update was the problem or my phone was haywire. Then, I found out thousands of people were having the same problem from https://downdetector.com/status/att/ and they do consumer cellular, too.
Now, the new minimum requirement is to be 4G LTE compliant.
After giving up on Moto G7 plus, I put my sim card into my old Galaxy S9+ and it worked. I made a phone call and talked for more than an hour. After I hung up, I tried to make another call and as soon as I dialed, I was returned the message, "call ended" and I couldn't get it working again. So I moved the sim card over to the phone that Consumer Cellular sold me last summer, the samsung A01 and no mojo. I messed around with it for an hour or so. Also, I forgot to mention that whenever I put the sim into a different phone, I would get a text message from Consumer Cellular letting me know that they have somehow configured my phone to work on their network and I have no idea how that works because when tried to show someone the messages they sent me, they were gone as if someone had deleted them and I had no idea that the sender of a text could delete the sent message on the recipient's phone, nor push a configuration. Long story short, nothing worked.
I stopped in at the local ATT store, today. The guy looked at my phone and changed 1 thing (my APN) and it started working. He changed it from Pure Talk USA (att.mvno) to ATT Nextgenphone (nxtgenphone). So now I can make phone calls and check my voice mail etc.... however, I am NOT able to use data from the tower. My wifi works, but I should be able to get data from the darn tower. no luck. I just wanted to let everyone know that I dont think it's my phone. I think it's consumer cellular and ATT or maybe just ATT because consumer cellular uses ATT towers.

ATT upgrade to 5G VOLTE HD disables calls in and out

In my town ATT upgraded its cell service to 5G VOLTE HD. About that time my phone and others could not send or receive calls.
ATT also turned off 3G. Some phones cannot then work at all. ATT has a list of phones that would work, and this one was on that list.
However mine was not working, but I could send and receive texts. I heard from some others that perhaps I would need a new simm.
I went to the phone store and got one. That did not fix it. I brought it home and decided that perhaps I needed to upgrade the phone.
I had not upgraded the phone much since the bootloader is locked, and I was waiting for an exploit so that I could get root.
But not being able to use my phone convinced me to try upgrades. I just began upgrading. After each upgrade I checked to see if I could place a voice call.
Eventually I succeeded. I did another upgrade to a newer android version and then stopped. My phone now has android version 10, one UI version 2.5, baseband version a505u1ueu9ctl4, and kernel version 4.14.62-19996794. Now I don't have to buy a new phone, and this one was not that old anyways.
My phone is a samsung A50 us version with a bootloader that can't be unlocked.
My AT&T N10+ N975U is running on Pie. It transitioned seamlessly with no changes made on my end. It was already using 4G VoLTE though.

Unlocked T-Mobile Wing onto AT&T?

I have an unlocked T-Mobile WIng (LM-F100TM) that has been working fine on AT&T for a couple of months until last Friday when the final switch was thrown removing AT&T's 3G network. Even though the Wing is capable of 2/3/4 and 5G, AT&T identifies it as a 2G phone and locks it out. Or it doesn't satisfy their model search (LM-F100VM is supported AT&T model, LM-F100TM is not on the list) and locks out. I'm about to throw in the towel having spent a couple of hours with AT&T support trying to find a workaround but thought I would try here first. I've tried using the hidden menu to change the RAT selection to just LTE and have enabled VoLTE and such but AT&T still rejects it as not compatible/not allowed.
Anyone out there think there is a chance of getting this phone onto the AT&T network as a 4G/5G phone or should I give in? Thanks.
embishop01 said:
I have an unlocked T-Mobile WIng (LM-F100TM) that has been working fine on AT&T for a couple of months until last Friday when the final switch was thrown removing AT&T's 3G network. Even though the Wing is capable of 2/3/4 and 5G, AT&T identifies it as a 2G phone and locks it out. Or it doesn't satisfy their model search (LM-F100VM is supported AT&T model, LM-F100TM is not on the list) and locks out. I'm about to throw in the towel having spent a couple of hours with AT&T support trying to find a workaround but thought I would try here first. I've tried using the hidden menu to change the RAT selection to just LTE and have enabled VoLTE and such but AT&T still rejects it as not compatible/not allowed.
Anyone out there think there is a chance of getting this phone onto the AT&T network as a 4G/5G phone or should I give in? Thanks.
Click to expand...
Click to collapse
It won't work.I have spent countless hours changing firmware that's available via download,and it just won't work.When the device boots and connects they have it set to look for what firmware version is currently on the device.If doesn't see the correct version for the AT&T model it blocks VoLTE from provisioning properly.I had a demo version,and I swapped the IMEI to even match a AT&T sold Wing and it was a no go.I finally broke down and bought a junk Wing,and swapped the board.The upside it being a demo model the fingerprint scanner works like it should now..lol..
Surgemanxx said:
It won't work.I have spent countless hours changing firmware that's available via download,and it just won't work.When the device boots and connects they have it set to look for what firmware version is currently on the device.If doesn't see the correct version for the AT&T model it blocks VoLTE from provisioning properly.I had a demo version,and I swapped the IMEI to even match a AT&T sold Wing and it was a no go.I finally broke down and bought a junk Wing,and swapped the board.The upside it being a demo model the fingerprint scanner works like it should now..lol..
Click to expand...
Click to collapse
Thanks for confirming my suspicions that it's a lost cause -- I'll be able to move on now and stop spending time looking for solutions that don't exist. Frustrating to say the least with AT&T's ad campaign of bring your own device but it is what it is. I was hoping someone with better phone skills than mine had gone through some reasonable attempts to make it work and it sounds like you did just that. Thanks again for your response.

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