[Requesting Help] [Noob] Flash Stock Firmware on SM-935A (AT&T)

Hello, all! I recently got a brand new Samsung Galaxy S7 Edge AT&T Model (SM-935A) from Best Buy, and I somehow decided to root it (Me being an iPhone user, I don't know anything about Android). Anyway, I ended up rooting the phone, and later, a Samsung Update popped up. Right after I denied it, my main apps (Caller ID Name, and Google Play Store) began to crash and fail to start up at all. Nothing was working as all apps were crashing. When I pushed restart on the phone, it booted through the 'custom' logo, then to the AT&T logo, where it stayed like that for hours. I noticed how hot the phone turned and put it in the refrigerator (After all, the phone is waterproof, right? ;_;). I searched on the internet, and there I found that I could full-wipe the phone out, which seemed reasonable to me, as I had not completely decked out the phone, yet. So after full-resetting the phone, I still saw the 'custom' logo, and all of my content was gone. As usual, I downloaded, and put back all of my accounts, and soon enough, another update came round, and my phone broke down... Again. So I repeated that step of wiping out my phone again. This happened about 3 more times until I decided to flash-fix my phone, or something akin to that term. I downloaded the required files of ODIN and software from this website, but instead, it still failed with the 'ODIN protocol version failed!' error. I do not understand this issue nor do I know how to fix it. I hear that XDA is the world's best developers at Android or something so I have come here as a FINAL RESORT! Thank you for reading, and to whoever may know, please help! (If you need pictures, I will be happy to post them!) :D

Samsung SM-935U firmware install guide on SM-935A (AT&T) device

Another interesting development! You can flash the firmware from the U model of the S7 Edge to the AT&T model. Do not know if this is possible for the T-Mobile, Verizon, etc. models. It should be. If anyone tries it and finds out, let me know and I’ll update the post accordingly.

The major advantage here to some will be that there is less bloatware. There is zero carrier bloat. None. Nada. Zip. The Samsung bloat is still there, however you can uninstall (yes, uninstall, not disable) most of it. There are 4 it seems that remain and can’t be uninstalled. These are Samsung Pay, Galaxy Apps. Clock, and Calendar (S Planner).

The menus are different, but everything is there. I think the menus are an improvement to be honest.

Frequently asked things I have tested:
Hotspot – Working fine here.
Samsung Pay – Bit the bullet and tested because I knew it would be asked, even though I don’t care to use Samsung Pay. My device was rooted previously. I flashed this and am no longer rooted. Samsung pay works fine. Tested it at the store this morning. IF YOU HAVE A DIFFERENT EXPERIENCE PLEASE UPDATE ME, AS THIS SEEMS TO BE THE MOST ASKED QUESTION.


Everything else seems to work as normal. User experiences are different. You may use things that I don’t, so you may find something that’s broken. If you do, please let me know and I’ll update this post for everyone. Please note the firmware also installs Instagram and Whatsapp by default in addition to Facebook, and they are both removable. Facebook however, much like on the AT&T version, is not. You can still turn it off though.

How to install:
Put your phone in download mode.

I personally had success with this version of Odin: http://www.mediafire.com/download/2t...din_3.12.3.rar

However another user couldn’t get it to work and used this version: http://d-h.st/gsDA

Flash the 4 files in this zip to your phone using Odin. All 4 of them: https://www.mediafire.com/?fm3oxddajta1k07
Put the BL in the BL slot, AP in it's slot, and so on. Flash all 4 at once through Odin.

When using the second version of Odin, I encountered an issue where the phone would crash during setup just after the wifi screen. If you have any problems with either, please report back and let me know. Either way, this seems safe to try on the AT&T version of the S7 Edge. I am able to go back to the stock AT&T firmware I’ve uploaded in my other thread just fine. So if this doesn’t work for you, it’s possible to go back. I have went back and forth 4 times now, and met with success going to and from the stock AT&T firmware to this one each time. However as always, try at your own risk.

Here are a few screenshots. I hadn’t installed all my stuff yet, however I had uninstalled several of the Samsung bloat apps already.

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