Tab S5e AT&T no LTE after flash US Unlock rom. - Samsung Galaxy Tab S5e Questions & Answers

I live in Asia, I just buy a Unlocked ATT s5e form local saller.
First, its running AT&T stock rom android 9 code SM-T727A, LTE working fine with local sim card. But i dont like At&t rom because bloatware; locked some feature; cant OTA update.
Then, i flash it with US Unlock rom XAA like SM-T727U via Odin, Tab boot working but no LTE anymore (just H+ icon and HSPAP in information, if i switch to LTE only will lost connect).
Now i flash swap 3 version of rom ATT unlock T727U, US Unlock XAA, US Cellular T7274R, no one can get LTE back.
Ofcourse i cant find stock ATT rom on internet for flash back.
So any one have solution or stock ATT rom let share for me pls.

So after no good at community support for this tablet. I leave this comment for who come behind me.
I need to buy account for download ATT stock rom on internet, then flash it via Odin, LTE is back.
After that, just stay away from T7274R rom (or any CDMA Carrier rom) you will be fine.
I have SM- T727AUCU2CUD1 firmware ( full stock S5e AT&T rom Android 10 Bin2), contact me [email protected].

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What is the best version to get it back to AT&T firmware for warranty.
I also read that you need to have AT&T firmware before you use an unlock code from AT&T. I see several of the Cell Unlocker sites offering 4.99 for codes for the Tab.
I do see the firmware on Samfirmware, but need to know what works
ANy advise would be great.

Please help: Using a Verizon 7 EDGE in a GSM market with new SIM?

How do I get a Verizon S7 Edge to recognize a new GSM SIM? I want to use it on another carrier, and Verizon says it's not SIM-locked/carrier locked but when I put in the new SIM, it's not working.
Factory reset didn't work. Would an Odin flash work? IF not, what would?
Thanks. Not sure if I'm asking in the right place.
Flash the U firmware.
Using odin ^^
Depending on which carrier you are flashing to. You can flash the carrier specific file for whichever carrier you want, for example if you want to use it with T-Mobile you can download the T-Mobile Odin and PIT files to flash and it should work fine. Same with AT&T.
Or do as said above and flash the 935U firmware and it'll work fine. Though with this option there's no carrier extras like VOLTE, or wifi calling as far as I know.
I used another Sim on Verizon firmware. Look somewhere in connection settings. There was smthn about which network you want to use Verizon CDMA or GSM. Now i'm on U firmware.
A t-mobile SIM worked fine for me after entering the new APN settings. For best performance though, flash the U firmware to unlock the bands.

Switched carrier, wanting to switch to their firmware also.

I have a Verizon branded note 3 that I am now using on Tmobile. It works fine but it still has verizons firmware and I want to get rid of it... so either Tmobiles firmware or an unbranded one. Ideally an unbranded one.
Please direct me to the correct thread with directions. I am a noob and I don't know exactly what I am doing.
Regardless of whether the bootloader is or is not locked, you cannot flash stock Tmobile firmware on the Verizon phone.
If the bootloader is unlocked, you may be able to flash a custom rom based on the stock T-Mobile firmware.
There is no unbranded firmware for the Verizon note 3 as that model is exlusive to Verizon.
Verizon forum .
https://forum.xda-developers.com/verizon-galaxy-note-3

Installing AT&T firmware on unlocked Verizon S7 Edge SM-G935V

I've purchased an unlocked Verizon S7 Edge, model SM-G935V, but haven't received it yet. I'm an AT&T customer. The phone should work on AT&T's network since it's unlocked, but I just realized it'll probably still have Verizon-ified firmware, and might not work with certain AT&T-specific features like HD voice, video calling, or voicemail. How will the Verizon firmware behave when it's on the AT&T network? Can I install the latest AT&T firmware on this phone instead, using a similar method to what people are doing for the 935U firmware? I prefer a stock AT&T firmware rather than a beta or rooting. Thanks in advance!
There's another thread in this forum "Stock Firmware for SM-935A (AT&T)". Should I just flash that to my unlocked SM-935V, and essentially turn it into a 935A? I believe the hardware of all S7 Edge models is identical, so I'm hoping that will work.
I did this and applied the 7.0 update - and now I can't seem to revert to any other software. If I were you, I'd flash the U update and forget about carrier-specific garbage.
raduque said:
I did this and applied the 7.0 update - and now I can't seem to revert to any other software. If I were you, I'd flash the U update and forget about carrier-specific garbage.
Click to expand...
Click to collapse
Thanks. Did you have any problems getting LTE data to work with your 935V once it was on the AT&T network? I saw a few mentions from people saying they could only get slower data connections, until they called AT&T to "provision LTE for their SIM" or something. I get the impression it's not enough just to have an AT&T SIM card - like the AT&T network has a registry of phone IDs, and non-AT&T branded phones won't be in it, and so won't get LTE data.
From browsing the 935U thread, it sounds like that firmware is receiving updates much more slowly than the carrier-specific firmwares. The U firmware also wouldn't provide the missing AT&T-specific features I was looking for, like HD voice or WiFi calling, so I'm not convinced it would really be an improvement over just keeping the Verizon fw. But maybe I'll feel differently once I actually get my hands on the phone and play with it - all I'm doing now is reading forum threads and checking my mailbox.
Honestly couldn't tell you. I'm on Verizon with my main device (S7e on U FW). I only flashed the AT&T FW (PK1) so I could flash the unreleased Nougat files.
Now, I can't seem to flash anything but an AT&T rom.
Also FWIW, the U firmware is getting updates slower than carrier roms, but it's still the better rom - untouched by the carrier's bumbling idiot of a dev team, no pre-loaded carrier junk you can't get rid of (only disable), better battery life and better performance.
More FWIW, I don't care about HD Voice or Wifi calling - both those are irrelevant to me.
At&t release today on 2/17/17 official update to Nougat 7.0 build BQA6 with February security.
Clicking from Edge of Galaxy.
I want to do the opposite - flash G935V onto G935A, with the intention of eventually being able to flash back G935A. Not sure if I could do this, though.
Sent from my SM-G930V using Tapatalk
I've got my phone working now. The short answer is yes, as far as I've found, you can flash any carrier's firmware to your S7 Edge. There may be some limitations if the bootloader version on your phone is different from the new firmware's bootloader version, but fortunately I didn't run into that. I went from the Verizon firmware to the AT&T firmware and then to the unbranded 935U firmware.
But for best results, a branded S7 Edge should be used with the same branded firmware, and on the same network. Otherwise you may run into some problems, or certain carrier-specific features won't work. In my case, my Verizon-branded S7 Edge is unable to get Wifi calling and HD Voice (aka VoLTE) on the AT&T network with an AT&T SIM card, no matter what firmware version I use.
s.chamberlin said:
I've got my phone working now. The short answer is yes, as far as I've found, you can flash any carrier's firmware to your S7 Edge. There may be some limitations if the bootloader version on your phone is different from the new firmware's bootloader version, but fortunately I didn't run into that. I went from the Verizon firmware to the AT&T firmware and then to the unbranded 935U firmware.
But for best results, a branded S7 Edge should be used with the same branded firmware, and on the same network. Otherwise you may run into some problems, or certain carrier-specific features won't work. In my case, my Verizon-branded S7 Edge is unable to get Wifi calling and HD Voice (aka VoLTE) on the AT&T network with an AT&T SIM card, no matter what firmware version I use.
Click to expand...
Click to collapse
Really? That's strange. I successfully flashed V firmware on my A and HD voice & WiFi Capping are active
Sent from my SM-G935V using Tapatalk
So you did the opposite direction of what I did? I've read that AT&T is more restrictive about these features than some other carriers, which is maybe why it didn't work for me. I can't find it now, but there was an AT&T community forums thread in which a rep straight-out said that those features won't work on a non-AT&T-branded phone or other unlocked "bring your own device" phone.
To be fair, I'm not certain HD Voice isn't working, since there doesn't seem be a definitive way to test for it. With the AT&T firmware, attempting to turn on wifi calling would give me an error saying it couldn't be activated on my device. With the unbranded 935U firmware and an AT&T SIM card installed, I don't even see an option for turning on wifi calling.

Samsung S7 AT&T phone on T-mobile network not getting update

I'm sure I not the only one switching carriers, I have unlocked S7 AT&T SMG930A , android version 6.0.1 on T-mobile network, everything work fine, what are my option to get version 7..
Thanks
Flash with Odin, or attempt to flash tmo fw in Odin.

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