[HOW TO] Carrier Switch Galaxy S8/S8+ SNAPDRAGON

TimelessPWN · Apr 28, 2017

*READ FIRST*
This thread is now completely dedicated to the aspect of Carrier Switching on the Snapdragon model of the Galaxy S8/S8+, the current root progress can be seen here:
Current ROOT Progress for G950U/G955U Snapdragon

Please Note that if your device is network locked this WILL NOT unlock it for use on other carriers, however it will allow the switching of carriers and carrier specific features on network unlocked devices just by changing sim cards, the device will reboot and your done. As for those with a network locked device this thread still applies to you, if you are interested in a bloat free experience(that is faster and smoother than stock touchwiz), on your Galaxy S8/S8+

Let's Begin!

Download the firmware for the unlocked S8/S8+ here:
G950U1UE1AQDC_XAA
Download the Prince Cosmy version of Odin here:
Odin_3.12.3_Modified
Enable developer options on your device:
Settings----->About Phone----->Click Build Number 7 times
Enable USB Debugging:
Settings----->Developer Options-----USB Debugging
Put your device into download mode: Volume Down + Bixby + Power
(accept the warning and connect your device to your computer)
Take the G950U1.zip you downloaded in step 1 and extract it, then place the BL,AP,CP,and CSC files into their corresponding places within Odin and press start
Once finished the device will boot back up and you will be free to disconnect it from your computer
You now have the unlocked, bloat free, firmware on your S8/S8+

CONTRIBUTORS
@Maltego for hosting files
@mweinbach for originally getting the unlocked firmware and for posting a tutorial on flashing it
@Acoustichayes for creating a dedicated root thread

TimelessPWN · Apr 28, 2017

Delete

Persianhawkes · Apr 28, 2017

I have the s8+ version installing now. Will report back. Op make sure they uncheck Auto reboot and f. Reset time in odin first.
Sent from my Nexus 6P using Tapatalk

Akumai · Apr 28, 2017

I've been getting protocol version errors trying to flash via odin 3.10 (the only one that I can download)

EDIT: installing now, needed the latest odin

TimelessPWN · Apr 28, 2017

Akumai said:
I've been getting protocol version errors trying to flash via odin 3.10 (the only one that I can download)

https://www.androidfilehost.com/?fid=529152257862722617

Here is Odin 3.12.3

suzook · Apr 28, 2017

Persianhawkes said:
I have the s8+ version installing now. Will report back. Op make sure they uncheck Auto reboot and f. Reset time in odin first.
Sent from my Nexus 6P using Tapatalk

This is for an s8....Not plus. Be careful.

Persianhawkes · Apr 28, 2017

suzook said:
This is for an s8....Not plus. Be careful.

I know. I have the s8+ file. Flashed and booted up now I have to do some tinkering.

Sent from my Nexus 6P using Tapatalk

acas914 · Apr 28, 2017

I can't wait to give this a run this weekend

suzook · Apr 28, 2017

Persianhawkes said:
I know. I have the s8+ file. Flashed and booted up now I have to do some tinkering.

Sent from my Nexus 6P using Tapatalk

Oh, ok. Didn't realize that. So does this overwrite the carrier info? Or is that untouched?

TimelessPWN · Apr 28, 2017

suzook said:
Oh, ok. Didn't realize that. So does this overwrite the carrier info? Or is that untouched?

As of right now there is no way to overwrite carrier info, we are working on it though. That reserved comment is going to be where i put all that is known, been tried, etc with carrier switching just a little busy right now

Triforce1001 · Apr 28, 2017

My build number is SM-G950A and my firmware is G950USQU1AQD9. I am quite familiar with the concept and process of rooting but I have never had an opportunity to actually get into it. I was wondering if my device is compatible with this firmware. If so I am fine with testing so long as there is a reliable way to restore my phone if something were to happen.

Akumai · Apr 28, 2017

Triforce1001 said:
My build number is SM-G950A and my firmware is G950USQU1AQD9. I am quite familiar with the concept and process of rooting but I have never had an opportunity to actually get into it. I was wondering if my device is compatible with this firmware. If so I am fine with testing so long as there is a reliable way to restore my phone if something were to happen.

I went ahead and did the favors of doing some testing, in terms of restoral anyhow. From my experience, you do not have access to the usual desktop, and you have very few apps by default(none actually, just settings). I was able to revert to the original stock firmware via odin without a hitch. I did not try installing TWRP on this firmware however, but I can confirm the existence of OEM Unlock, which, by itself, claims to unlock the bootloader.

TimelessPWN · Apr 28, 2017

Triforce1001 said:
My build number is SM-G950A and my firmware is G950USQU1AQD9. I am quite familiar with the concept and process of rooting but I have never had an opportunity to actually get into it. I was wondering if my device is compatible with this firmware. If so I am fine with testing so long as there is a reliable way to restore my phone if something were to happen.

This is compatible with your device all US versions of the S8 and S8+ have the same model number. I have your stock firmware i just need to upload it to androidfilehost

BotsOne · Apr 28, 2017

If anyone feels like it joining I have created an IRC room we can all chat in and brainstorm things. It's #sgs8 on irc.freenode.net. Hasn't had many users since I created it but I lurk in there when I'm at home. I'd love some company. Let's get this thing rooted so we can shut all the haters up!

ait1071 · Apr 28, 2017

Glad to see more devs working on this

TimelessPWN · Apr 28, 2017

Akumai said:
I went ahead and did the favors of doing some testing, in terms of restoral anyhow. From my experience, you do not have access to the usual desktop, and you have very few apps by default(none actually, just settings). I was able to revert to the original stock firmware via odin without a hitch. I did not try installing TWRP on this firmware however, but I can confirm the existence of OEM Unlock, which, by itself, claims to unlock the bootloader.

I attempted to install TWRP on it but secure check fail boot i believe i will try again, but we only have the exynos twrp for the S8 to work with....

Unless someone can make a compatible version for Snapdragon?

force70 · Apr 28, 2017

Akumai said:
I went ahead and did the favors of doing some testing, in terms of restoral anyhow. From my experience, you do not have access to the usual desktop, and you have very few apps by default(none actually, just settings). I was able to revert to the original stock firmware via odin without a hitch. I did not try installing TWRP on this firmware however, but I can confirm the existence of OEM Unlock, which, by itself, claims to unlock the bootloader.

On no device that ive seen does OEM unlock in fact unlock the bootloader.

sent from my S8 plus, Note 7 or S7 Edge

suzook · Apr 28, 2017

STF_TimelessGoD said:
I attempted to install TWRP on it but secure check fail boot i believe i will try again, but we only have the exynos twrp for the S8 to work with....

Unless someone can make a compatible version for Snapdragon?

Contact @ashyx he's very good with Samsung and TWRP

Akumai · Apr 28, 2017

force70 said:
On no device that ive seen does OEM unlock in fact unlock the bootloader.

sent from my S8 plus, Note 7 or S7 Edge

it merely mentioned that it allows "the unlocking of the bootloader"

force70 · Apr 28, 2017

Akumai said:
it merely mentioned that it allows "the unlocking of the bootloader"

Thats not what that means is what im trying to say lol. That option on sammy phones has never really done much other than allow flashing in odin

What is of note is that i dont have that on my S8 which is new that option is always there.

[HOW TO] Carrier Switch Galaxy S8/S8+ **SNAPDRAGON**

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[HOW TO] Carrier Switch Galaxy S8/S8+ SNAPDRAGON