[Samsung Galaxy S8+ Guides, News, & Discussion] derektm.:
ZQK8 Unlocked, Unbranded FW Beta 2 Files, NOT FLASHABLE YET, Need a Dev - Preface Guys! I got the files! Before anyone follows this information, I think an experienced XDA contributor should look it over, reorganize it, and choose the right path. As of now the file structure of the bin files matches the OP update zips, but I think they need to be repackaged to be flashed, because its not a zip file. I think we could just extract in 7zip and recompress as zip and be good, but that is out of my expertise. I just compared against OP zip, and these bins are missing some otacert, CERT.RSA, CERT.SF, and MANIFEST.MF, whatever those are. Everything written below assumes a dev can repack these files.

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I will be providing Beta updates based on Method 1. Method 2 may not work with future beta zip's, So at your own risk if you do it the other way.

READ! VERY IMPORTANT: INTRO - I'm going to explain to you all what I've found out as far as how this update works:

All Galaxy S8's/S8+'s in USA are the Same hardware. I flashed my phone to the Unlocked Firmware because I wanted to be able to use it with Verizon and T-Mobile. VoLTE and WiFi calling works on T-Mobile, and its actually a way more stable and better firmware than T-Mobiles. On Verizon, VoLTE works, but no WiFi calling... no big deal, and VZW official firmware isn't in the beta anyways, so this is what you've got. I'm not specifically for ATT features, but I did stick an disconnected ATT sim in and verified this firmware works with ATT. Sprint un-tested.

I am providing 2 methods, based on where you are at with your phone:

I did not realize that Method 2 also had a second update. It goes from AQH3 to ZQK6 to ZQK8. I didn't pull the ZQK8 update, so if you do that Method, you will only have ZQK6. I'll try and grab it later on.

Method 1 - If you follow the guide below and have a SIM in it, it wants to download ZQJJ, Which is the initial Beta 1 firmware of the Unlocked Firmware. This is because your CSC has changed from XAA (look below to understand) to your carrier CSC.

If this happens, i.e. you have unlocked firmware installed, but you put your SIM card in, Once you put your SIM in, you cannot change the CSC back to XAA without following all of the steps below, and instead you will have to flash ZQJJ, and then a small ZQJJ to ZQK8 update.

Method 2 - On a fresh Install of the latest Unlocked Firmware (AQH3), with CSC Set to XAA (US Unlocked), and your SIM not installed - See Below, it grabs to Beta 2 ZQK6. I am not sure if doing this method will be best for future Beta updates.

Guide for getting ready for BETA 2

Please follow along with this guide by [MENTION=8352198]Mike15678[/MENTION].

For Method 2, TAKE YOUR SIM CARD OUT, and DO NOT PUT IT BACK IN UNTIL BETA 2 IS INSTALLED. For Method 1, proceed with SIM card installed!:

1) Read "Prerequisites"

2) Follow "Carrier Switching", on Step 34, echo XAA (US Unbranded) as the csc code

3) Follow "Flashing Unlocked Firmware", Use my latest files Below, Labeled "Unlocked Firmware Files".

4) Method 1, Flash AQH3 to ZQJJ, and ZQJJ to ZQK8. Method 2, Flash AQH3 to ZQK8 (Use the right file, there are 2 ZQK8 update bins, pay attention.) I do not explain this.

5) Reinstall SIM card if you followed Method 2.

By setting the CSC to XAA on Step 34, you can insert any carrier SIM into your phone, provided that it truly is unlocked, and it will reconfigure and reboot and work with that carrier. This will not carrier unlock your phone, so if you are network locked, it will still work, it will just only work with your original carrier SIM.

Note: YOU HAVE TO UPDATE FROM THE "UNLOCKED FIRMWARE FILES" (AQH3) that I am providing. The bin is a FOTA update, which means it has to update from an exact baseband/firmware.

Download Links:

Link to the "Galaxy S8+ Unlocked Firmware Files"

Method 1 Galaxy S8+ Oreo files:

AQH3 UNLOCKED BUT YOU ALREADY STUCK YOUR CARRIER SIM CARD IN, AND YOUR CSC IS NOT XAA ->>> TO UNLOCKED FW BETA 1 ZQJJ

ZQJJ ABOVE TO UNLOCKED FW BETA 2 ZQK8 (small update)

Method 2 Galaxy S8+ Oreo file:

AQH3 UNLOCKED SET TO XAA, WITH NO SIM CARD INSTALLED (you did Step 34 in the guide, and have NOT inserted a SIM or had one installed during the process) ->>> TO UNLOCKED FW BETA 2 ZQK8

For each additional Beta update that comes out, I will supply those bin files, and hopefully you can just adb flash them as updates. On Friday I will provide the bin for the regular S8, Beta 2 ZQK8.

[MENTION=7820902]xdanilva[/MENTION] [MENTION=4452336]Reechings[/MENTION]