yashsingh1/xdaforums huggingface dataset:
[AT&T Samsung Galaxy S7 Edge Guides, News, & Discus] jshamlet:
Check Settings -> About -> Baseband Version. The first several characters are the model (G935U) the next three are the region (UEU) and then the bootloader version (4). The last are the specific version "number" (BQD2). Make sure that what you are flashing FROM has a 4 in the bootloader version. I'm not positive, but I believe you can "upgrade" if your bootloader version is lower, but not "downgrade"
[AT&T Samsung Galaxy S7 Edge Guides, News, & Discus] ch0c0lateb0yctg:
thanks a lot for the explanation. it made clear many confusions. so as my current baseband is : SC02HOMU1BQC5(Android 7.0) . i suppose my BL is version 1. i basically tried evrythng but didnt work...i guess its not possible..

have a good day mate
[AT&T Samsung Galaxy S7 Edge Guides, News, & Discus] manny05:
So glad I made the updated to nougat U. My phone feels much more responsive and the battery life is really good!
[AT&T Samsung Galaxy S7 Edge Guides, News, & Discus] jwzg:
Edited...for my bad reading. Yes you SHOULD be able to flash this ROM if bootloader is the same. Sorry for the previous answer, but I didn't see yours was a Snapdragon processor.
[AT&T Samsung Galaxy S7 Edge Guides, News, & Discus] ch0c0lateb0yctg:
its alright, as far as i have understood my bootloader is version 1 and i tired several times with multiple version of odin and all but didnt work...any idea how can i update my bootloader to v4??

Thanks mate
[AT&T Samsung Galaxy S7 Edge Guides, News, & Discus] Tonksetrum:
hi there

did the nougat firmware support lte? and how about the hotspot? does it works?
[AT&T Samsung Galaxy S7 Edge Guides, News, & Discus] jwzg:
You will probably have to flash to an older 935U Marsmallow ROM with the same BL as yours (if one is available). Then you'll be able to upgrade from there. Look on Samfirm.
[AT&T Samsung Galaxy S7 Edge Guides, News, & Discus] ch0c0lateb0yctg:
aahh well i guess i stuck with this crap version of BL...nothing on sammobile the oldest i got is BL v2... nothng on samfirm either.

the only reason i bought that phone was the color(blue coral). now i am stuck here....never buying another country specific phone . anyway thanks for ur suggestions mate
[AT&T Samsung Galaxy S7 Edge Guides, News, & Discus] byte9:
The May security update with some bug fixes and interface fixes like toast notifications dropped 6-8-17. It updates via OTA.
[AT&T Samsung Galaxy S7 Edge Guides, News, & Discus] Krazie99:
Anyway to fix my terrible battery life on this? Not even getting 2 hours SOT tried factory reset
[AT&T Samsung Galaxy S7 Edge Guides, News, & Discus] jshamlet:
You are getting bad battery life on the unbranded/unlocked version?

I'd start with GSam (or some other battery monitor) and start looking for a rogue app, because that is definitely not normal. My battery life improved dramatically on the U firmware compared to AT&T.
[AT&T Samsung Galaxy S7 Edge Guides, News, & Discus] Krazie99:
It might be getting battery I can't tell. And says unlocked version. I have gsam and it shows android system/android os are normally the top ones. It's facebook right now i have been using it a lot today at work.
[AT&T Samsung Galaxy S7 Edge Guides, News, & Discus] lowhanger:
We're in the same boat

Have you tried with soemthing called the "PrinceComsy" version od Odin? Here's the link: https://drive.google.com/file/d/0B8c1zN7zrnVhM3JNWGtROUJPQW8/view

Anyway I'm rocking my SC-02H s7 edge as is with Android 7, but I disabled the Japanese bloat with Package Disabler pro and the phone is performing quite for the most part, and battery life is superb too.
[AT&T Samsung Galaxy S7 Edge Guides, News, & Discus] ch0c0lateb0yctg:
tried that...same result...its the BL version mismatch as much as i understood from my short research...yup i also have the same 7.0 as urs...and it feels smooth...smoother than my exynos version....one thing annoys me most is no "delivery report" option in message app( yup,i need that)...also fw thngs like pop up of "international country code" whenever i try to call someone...japanese lang in download mode....docomo setting in ssettings...and i am also seeing a bug like battery stat doenst resets once full chrg ur phone...screen on time keep increasing...dont start from 0s. and also the battry life is better in exynos version thats for sure.

anyway thanks for ur time mate
[AT&T Samsung Galaxy S7 Edge Guides, News, & Discus] jshamlet:
Two things -

1) There may be an older version of the U firmware with an older bootloader, which you could then OTA up to current with.

2) I was under the impression you could go to a higher bootloader version from a lower, but not the reverse. Have you tried just loading the current U firmware with ODIN? (I'm not a 100% sure on this one, but I believe in the past Samsung devices would let you upgrade to firmware with a newer bootloader using ODIN - you just couldn't "downgrade" the bootloader)
[AT&T Samsung Galaxy S7 Edge Guides, News, & Discus] chinkpak:
Okay quick question,

I currently have an unlocked AT&T variant, 935A, I live in Toronto, but I would ideally like to rid myself of all this AT&T bloat, I'm currently on 7.0 and

have the security patch as of March 2017. Would the files in the OP work fine?
[AT&T Samsung Galaxy S7 Edge Guides, News, & Discus] Krazie99:
Download U firmware for that. No att bloat
[AT&T Samsung Galaxy S7 Edge Guides, News, & Discus] chinkpak:
Thanks, gonna dive in right now! I assume use the Prince Comsy Odin?
[AT&T Samsung Galaxy S7 Edge Guides, News, & Discus] Krazie99:
Yeah that's what I used. Then I rooted U firmware from there
[AT&T Samsung Galaxy S7 Edge Guides, News, & Discus] chinkpak:
Worked perfectly; pretty quick! Thanks.
[AT&T Samsung Galaxy S7 Edge Guides, News, & Discus] Krazie99:
Yeah no problem.. you can disable other apps you don't want with package disabler that also helps
[AT&T Samsung Galaxy S7 Edge Guides, News, & Discus] idoit:
Is there a non-Engboot root method for US-variants of S7 Edge?
[AT&T Samsung Galaxy S7 Edge Guides, News, & Discus] rlewis312010:
No other shared methods. People always have the goods.
[AT&T Samsung Galaxy S7 Edge Guides, News, & Discus] XGX5309:
I'm pretty sure that the U firmware is showing you a more accurate representation of the actual signal you have had all along. AT&T loves to mess with signal meter algorithms.
[AT&T Samsung Galaxy S7 Edge Guides, News, & Discus] idoit:
600-700mb out of 4GB of RAM seems to be reserved, and not available in AT&T firmware. Is all 4GB in G935U available (since it doesn't have bloatware)?
[AT&T Samsung Galaxy S7 Edge Guides, News, & Discus] jshamlet:
It uses less RAM, but not by that much. Remember, the OS itself is going to use some if your RAM, so you will never have all of it available for apps. The real gain is lower cpu usage and resultant lag.
[AT&T Samsung Galaxy S7 Edge Guides, News, & Discus] idoit:
I came to see a thread about getting VoLTE and WiFi calling for Unlocked firmware of Snapdragon S8 and S8+ here. I was wondering if same thing can happen for S7 Edge Snapdragon?!

This is my only apprehension and if it can be done, I'll install G935U.
[AT&T Samsung Galaxy S7 Edge Guides, News, & Discus] jshamlet:
You can get VoLTE on the unlocked firmware with T-Mobile*, but not WiFi calling - that requires modified software. AT&T offers neither on the unlocked firmware.

Unfortunately, if you require WiFi calling, you are stuck with the carrier versions.

*because it's actually a standard now, but AT&T blocks it on anything that isn't branded by them for some reason...
[AT&T Samsung Galaxy S7 Edge Guides, News, & Discus] idoit:
[MENTION=6005385]jshamlet[/MENTION] Here is my question then: I have an G935A SIM unlocked and I want to use it with a Canadian carrier. Now, would these features (WiFi calling, VoLTE, etc.) work? or are they only available if I were to use them with AT&T?
[AT&T Samsung Galaxy S7 Edge Guides, News, & Discus] jshamlet:
That depends entirely on the carrier. You would have to ask if they support those features on a 935U.
[AT&T Samsung Galaxy S7 Edge Guides, News, & Discus] idoit:
Yes, my carrier supports VoLTE and WiFi calling.

But if 935U doesn't have these features, then they won't even be there to begin with.
[AT&T Samsung Galaxy S7 Edge Guides, News, & Discus] jshamlet:
Wifi calling won't work, period - there isn't even a menu for it, as it is invariably a carrier specific feature. However, there is a decent chance that VoLTE will. That is actually a part of the LTE standard now, and the U version implements it. Some carriers will let it work on their networks, others won't. AT&T specifically blocks it on unbranded phones, such as the 935U and the Pixels, etc.

Essentially, if you absolutely have to have those features, you may have to stick with the carrier loaded images.
[AT&T Samsung Galaxy S7 Edge Guides, News, & Discus] htorrado1979:
Is recommended update my phone

Enviado desde mi SAMSUNG-SM-G935A mediante Tapatalk
[AT&T Samsung Galaxy S7 Edge Guides, News, & Discus] htorrado1979:
To which version it is compatible to update from my firmware

Enviado desde mi SAMSUNG-SM-G935A mediante Tapatalk
[AT&T Samsung Galaxy S7 Edge Guides, News, & Discus] jwzg:
Security update for 935U out.
[AT&T Samsung Galaxy S7 Edge Guides, News, & Discus] htorrado1979:
help me. I can update without problems from the version that I show in the image. Would only download and by Odin install the firmware of the first post

Enviado desde mi SAMSUNG-SM-G935A mediante Tapatalk
[AT&T Samsung Galaxy S7 Edge Guides, News, & Discus] jshamlet:
You are still running 935A (AT&T) firmware. This update is for the 935U (unbranded). Even if you could obtain the update, you couldn't apply it to your 935A image.
[AT&T Samsung Galaxy S7 Edge Guides, News, & Discus] htorrado1979:
Could you tell me what to do? I have read and as I saw that had bootloader v4 wanted to apply the latest firmware version 935u
[AT&T Samsung Galaxy S7 Edge Guides, News, & Discus] jshamlet:
Download the files in the first post and use the supplied ODIN tool to download them. You will need to put your phone in download mode by turning it off, then turning it on while holding HOME + VOL_DOWN and then selecting again to confirm you want to enter download mode.

Note, this is a full reflash, so you will be factory reset when you are done. (It's as though you bought a 935U brand new) Make sure you backup first.
[AT&T Samsung Galaxy S7 Edge Guides, News, & Discus] htorrado1979:
How root?

Enviado desde mi SM-G935U mediante Tapatalk
[AT&T Samsung Galaxy S7 Edge Guides, News, & Discus] Cboss:
Why you keep posting this in different forums? Check your APN settings, else it is what it is.
[AT&T Samsung Galaxy S7 Edge Guides, News, & Discus] byte9:
I put the Odin you need right there in OP..
[AT&T Samsung Galaxy S7 Edge Guides, News, & Discus] htorrado1979:
Hi. I can rootear my G935A with the last firmwarr of the G935U. How would you do it?

Enviado desde mi SM-G935U mediante Tapatalk
[AT&T Samsung Galaxy S7 Edge Guides, News, & Discus] byte9:
This thread is not for root discussion. It is for the 935u rom. Read the OP please.
[AT&T Samsung Galaxy S7 Edge Guides, News, & Discus] jonacastillo:
Does this work in 935T (T-Mobile)?
[AT&T Samsung Galaxy S7 Edge Guides, News, & Discus] jshamlet:
All US (Snapdragon) based S7 Edges can use this, so yes. You will lose some T-Mobile carrier specific features, so do research before you convert.
[AT&T Samsung Galaxy S7 Edge Guides, News, & Discus] byte9:
You lose rcs messaging but WiFi calling 4x4 mimo and volte work.
[AT&T Samsung Galaxy S7 Edge Guides, News, & Discus] jonacastillo:
Thanks, I am in Honduras with a unlocked phone from T-Mobile, already instaled and updating, everithing is goin great! :)

---------- Post added at 04:48 PM ---------- Previous post was at 04:45 PM ----------

Thanks, I am in Honduras with a unlocked phone from T-Mobile, so I don't care about T-Mobile features, I just need WiFi, 4G and calls... already instaled 935U firmware and updating, everithing is goin great! :)
[AT&T Samsung Galaxy S7 Edge Guides, News, & Discus] idigg:
Got a AT&T S7 Edge few days ago, I'm running it on Cricket. I couldn't find a way to get it to update, and hated the carrier bloatware. Flashed this, and so far so good. It even updates via Samsung. AWESOME! Thank you OP
[AT&T Samsung Galaxy S7 Edge Guides, News, & Discus] jonacastillo:
Congratulations buddy. :)

Enviado desde mi SM-G935U mediante Tapatalk
[AT&T Samsung Galaxy S7 Edge Guides, News, & Discus] byte9:
You're welcome <3
[AT&T Samsung Galaxy S7 Edge Guides, News, & Discus] jwzg:
July security update for 935U out.
[AT&T Samsung Galaxy S7 Edge Guides, News, & Discus] Dean_L:
Awesome! Thanks for this. I've been so tired of the AT&T Bloatware! Running smooth here.
[AT&T Samsung Galaxy S7 Edge Guides, News, & Discus] chitvan:
voLTE for g935u ?

flashed my g935a with g935u. is there any way to get voLTE ?
[AT&T Samsung Galaxy S7 Edge Guides, News, & Discus] idigg:
You should really read the first post
[AT&T Samsung Galaxy S7 Edge Guides, News, & Discus] chitvan:
I thought it may be possible by rooting:confused:
[AT&T Samsung Galaxy S7 Edge Guides, News, & Discus] byte9:
All bands will be unlocked that the Qualcomm modem can do indeed. Once you flash the 935u it will update to the July security patch also.
[AT&T Samsung Galaxy S7 Edge Guides, News, & Discus] byte9:
Fresh Nougat

I'm updating OP with a new QG1 update file (so you won't have to go through 3 updates and security updates on first install, the QD2 Nougat build up now is a little older) -- also for those running it we just got the August security patch OTA from Samsung.
[AT&T Samsung Galaxy S7 Edge Guides, News, & Discus] ladybugwiser:
I tried to use the original odin and the one prince comey unofficial, but neither worked. I have a s7 edge sm-935a, that hasn't been updated in security since November 1, 2016. I'm on android version 6.0.1; Build mmb29m.g935aucs4apk1. I'm simply trying to update to nougat. I need help, everytime I try I get complete write 1 failed. Also how am I suppose to load the home on my device or do I not need it? Thanks in advance!!!
[AT&T Samsung Galaxy S7 Edge Guides, News, & Discus] byte9:
You're getting write 1 failed because your Old Nov 1 rom is on boot loader version 3. You need to be on 4. The way to handle this to get to U is to try an OTA, if it won't OTA did you flash any non-matching parts? Modems from other places etc?

The boot loader version is the 5th number in from the right of 'Build Number' in 'About Phone'. I'm willing to bet you have a 2 or 3 in the 5th space in from the right.

If you're not comfortable reading the number then post a screenshot here.
[AT&T Samsung Galaxy S7 Edge Guides, News, & Discus] V@no:
Two questions:

1) does this rom wipe entire internal storage?

2) did they remove shutter sound option from camera app in latest version? (running BQH3 by MafiaIlluminati, the setting is gone)
[AT&T Samsung Galaxy S7 Edge Guides, News, & Discus] byte9:
#1 The home.csc will not wipe internal storage. It's included in the zip. The stability if you go that route is a little shakier but it's an option versus a full internal storage wipe. (ANYTHING in Odin wipes internal storage unless you have a home.csc)

#2 Yes, they did.
[AT&T Samsung Galaxy S7 Edge Guides, News, & Discus] :
Flashed the firmware (July 2017) and updated OTA to the August patch. However, a thing I noticed is that when I go into recovery boot it goes to the "installing system update" screen and then goes to "no command" for a while until going the main recovery boot menu. Is this normal?
[AT&T Samsung Galaxy S7 Edge Guides, News, & Discus] MichaelJCarr2302:
The current security patch is August 1st?
[AT&T Samsung Galaxy S7 Edge Guides, News, & Discus] jshamlet:
Yes. The stock recovery is really only designed to install updates. I'm not clear on why it waits so long after realizing it has no update to install, but that's Samsung for you.

Yes.
[AT&T Samsung Galaxy S7 Edge Guides, News, & Discus] byte9:
Yup that's been noted a few times. Hypothesis is the update script is buggy and hangs after / before updates. It gets past though and you shouldn't need to be in recovery again for a while ideally anyways.
[AT&T Samsung Galaxy S7 Edge Guides, News, & Discus] liveuptoit:
"No signal" problem

I have updated my S7 Edge AT&T version of "G935AUCS2APH1" firmware which was working with my network provider (Greece) after contacting AT&T and receiving an unlock code.

After updating to "G935AUCU4BQF3" i do not have network service.When i try to call i get the message "Mobile network not available." I have in the corner the "no parking" signal which means no network.

I was wondering if i install the U firmware would my network functionality return to normal? Can i go from this version which i currently have?

Thank you in advance!
[AT&T Samsung Galaxy S7 Edge Guides, News, & Discus] byte9:
You can. The U model/firmware is meant for the US market so not installing a US carrier sim it should keep all bands open the modem will do and you may have to manually enter your APN but for sure you can flash the firmware.
[AT&T Samsung Galaxy S7 Edge Guides, News, & Discus] liveuptoit:
I downloaded this firmware SMG935U4BQH3 which you had in OP post.

Is the csc of the current firmware prevents me from using my carrier?

Thank you dude for you quick response!

I'll let you know what happens.
[AT&T Samsung Galaxy S7 Edge Guides, News, & Discus] byte9:
I can't say for sure what is preventing it. If it worked before on a phone with att bands it should still.

Also when you flash it do not use the home.csc - that csc will not delete your internal data but also usually causes more problems than worth.
[AT&T Samsung Galaxy S7 Edge Guides, News, & Discus] liveuptoit:
I updated successfully in SMG935U4BQH3, and not used home.csc. I used the other one.

Still though i have no network coverage,although it tried something at start with registering to the mobile network,but nothing as a result.

I have more options in Settings-Connections-Mobile networks,like in "Network mode" it states now "LTE/3G/2G (auto connect).

In "network operators" i have "Search networks" Select automatically" "Default setup" which all of these options pop up an error message.

I cannot use codes to see more info.

Should i install the firmware again? I used 3 different ports to make it work with run as admin mode.I used the Odin v3.12 Unofficial version.When i tried Odin3_v3.12.7 it failed everytime.
[AT&T Samsung Galaxy S7 Edge Guides, News, & Discus] byte9:
If it is running and booting then it's fine, your problem is not the rom if you are not getting network signal at this point. You may need to manually add your carriers APN settings. Also make sure your sim is in place properly.
[AT&T Samsung Galaxy S7 Edge Guides, News, & Discus] liveuptoit:
In APN it has the default values of my sim already. It has "Carrier" Wireless Internet and "Carrier" Mms

In network operators will not choose anything.

Is it possible that csc makes it hard for me?

Should i retry installing firmware again or there is no point?
[AT&T Samsung Galaxy S7 Edge Guides, News, & Discus] byte9:
No don't install the firmware again. Your problem is for sure not the firmware.

You said at one point you were using the AT&T firmware and then that stopped working when you updated?

At this point give your carrier a call and be sure they have the IMEI on file for your phone. Sometimes a phone will work for a while and then when they re-register / reboot with changes if the carrier does not have the IMEI it's possible they're not allowing it on the network.
[AT&T Samsung Galaxy S7 Edge Guides, News, & Discus] liveuptoit:
While on "G935AUCS2APH1" when i first inserted my sim it popped up a unlock code request which AT&T sent me. I did the procedure and after restarting the device it was working on my network.I checked some sites about the IMEI locked still in AT&T but it doesn't seem so.

Thank you for your time,tomorrow i will call my provider to see about the IMEI thing you said.

If this fails,i will bother you again :o
[AT&T Samsung Galaxy S7 Edge Guides, News, & Discus] byte9:
All good.
[AT&T Samsung Galaxy S7 Edge Guides, News, & Discus] liveuptoit:
I checked with my mobile network provider and i also inserted a different sim but there are no such restrictions in Greek providers for the IMEI. So i came to conclusion that the problem is not from the network providers. But solely from the mobile itself and it's firmware/baseband/modem version?

If you have any other ideas/advices for me to try,i would love to hear them,because i reached my limits with this phone.

Thank you in advance!
[AT&T Samsung Galaxy S7 Edge Guides, News, & Discus] byte9:
Can you post a screenshot from Settings>About Photo
[AT&T Samsung Galaxy S7 Edge Guides, News, & Discus] liveuptoit:
https://imgur.com/epPZClu[IMG="about"]http://imgur.com/epPZClu[/IMG]
[AT&T Samsung Galaxy S7 Edge Guides, News, & Discus] byte9:
Hmm, and when you put the att unlock code this phone made calls? Also simple thing you have tried sim in other phones?
[AT&T Samsung Galaxy S7 Edge Guides, News, & Discus] liveuptoit:
Ims not registered

I upload some more images.

https://imgur.com/YLtyL58 network operators

https://imgur.com/Frq6XdR network operators 2

https://imgur.com/6xxsgEF status

https://imgur.com/ftysBnY sim card status

---------- Post added at 06:13 PM ---------- Previous post was at 05:54 PM ----------

When it was in android 6.01 G935A it asked for AT&T unlock code and yes,afterwards it worked fine in my network.At that time i did not notice the status of radio or ims.

When updated to Nougat 7 it did not work anymore. Thus searching all info on the phone to find out what's wrong.

Can i downgrade to android 6.01 stock firmware since i am now in U? Also can i just use the csc file of stock firmware on U i now run?

The stock bootloader was v2 now i run v4 maybe this is the issue?
[AT&T Samsung Galaxy S7 Edge Guides, News, & Discus] brisk00:
AT&T Messaging

I just flashed the 935U firmware on my S7 and I am loving it so far. But is there any change of getting the AT&T default messaging app? The one that has the option for backing up and restoring text messages? I understand Advanced messaging won't work.
[AT&T Samsung Galaxy S7 Edge Guides, News, & Discus] byte9:
If you successfully unlocked it and you are 100% conclusive on that then you can forget about the software. You're going to go crazy flashing roms and this is not your issue. The only part that matters is the CP (modem) and if your hardware is not defective the file you used has been used successfully by thousands and it is successful on your device too, just no signal for some reason. When you search for network operators does it see any?
[AT&T Samsung Galaxy S7 Edge Guides, News, & Discus] byte9:
The bootloader is not the issue, trust me. You're just taking guesses in desperate times, keep it logical. The boot loader has nothing to do with the CP(radio). You also didn't answer does the sim you have work in other phones? Also do you have a microsd card to test your reader slot is good at all?
[AT&T Samsung Galaxy S7 Edge Guides, News, & Discus] liveuptoit:
Ims not registered

I used 2 sims which they work properly and they are different network providers.

I was just searching this forum about not registered ims and i found some other users which had the same issue with AT&T when upgraded stock firmware.

https://xdaforums.com/att-s7-edge/how-to/samsung-sm-935u-firmware-install-guide-t3411451/page47

When they returned to stock, ims was registered again.

Will i be able to return to stock fw and v2 bootloader?
[AT&T Samsung Galaxy S7 Edge Guides, News, & Discus] byte9:
Something for you to understand, the U firmware doesn't lock any frequencies. It will do all bands possible by the Qualcomm modem. Think of ALL US phones as one phone, this is literally the reality. The variation between carriers is what bands are locked and unlocked. You can not go backwards to old versions once the baseband is upgraded, you can only go to boot loader v4 roms. But my point is hopping roms is arbitrary. The variable is the modem and the CP you're using isn't the issue. Is the sim card a micro as needed or is it cut down?