yashsingh1/xdaforums huggingface dataset:
[T-Mobile Samsung Galaxy S8 Guides, News, & Discuss] partcyborg:
Sorry, you must be mistaken....

1) None of those posted is or has anything to do with "Eng boot". As you have been told before, the real eng boot does not boot on our phones.

2) This thread does not describe rooting your phone, nor any phone, nor does it contain helpful information about root on North American snapdragon s8/s8+.

3) The "Eng Boot" that is really a deviously worded factory boot is version AQCF. The last u1 factory boot that was made is version AQK1. There was at least one, and up to 3 released factory rom versions released for every letter in the alphabet between the letters C and K. That's d e f g h I j k = 8 letters. Times 1.5 or average releases per letter, is 12 releases.

Your fake eng boot is 12 releases, or 8 full months old. Not only that, but ROMs as old as that have well documented sdcard issues that are well known to eat people's sdcards and have done so to people getting root in the early days of sampwnd.

Did I leave anything out? That covers I think every statement you made in the op or above as not true. This thread is a lie and a nuisance at best, and downright hostile at worst. People are trying to use this mess to do one of the false things you claim and are going to wind up corrupting data, messing up their phone, or worse. The fact that every single post in the last at least 2 months is someone having an issue related to the things above is a further testament to this.

The decent thing to do would be to take "Eng" and "Root" out of the subject and zip names (call it classic boot maybe?), Take the the dangerous files down, point people at modern methods, and move on. The humane thing would be to at least take down stop calling it eng boot and confusing everyone. Maybe if inaction is the chosen outcome i can get a mod to at least kill the links
[T-Mobile Samsung Galaxy S8 Guides, News, & Discuss] Josh McGrath:
The SD card issue is definitely present in this setup. I had to odin to a new bl for it to go away. Kernel panic error to be exact.

I have a weird setup, it's half eng build, half stock. I don't know how that happened but that's what it is. For instance, I still get the log to SD card EVERY boot!
[T-Mobile Samsung Galaxy S8 Guides, News, & Discuss] Kevinrdz91:
Guys I need some help,

, do you know if a US-Cellular Galaxy S8 SM-G950U which is gsm unlocked would work with LTE bands like those of at&t or t mobile?

Thanks!!
[T-Mobile Samsung Galaxy S8 Guides, News, & Discuss] partcyborg:
Off topic, zombied a thread that needs to die so bad.

Nope, not answering that. Ask in the q&a thread
[T-Mobile Samsung Galaxy S8 Guides, News, & Discuss] Kevinrdz91:
why is this off topic? I am asking this here since we all talk about ALL SM-G950U models as if they were all exactly the same, regardless of their carreer but thanks for the advise and of course I already did that but sadly no one answered and I think no one will.

and why this thread needs to die so bad? is this method outdated and impossible to do nowadays? thank you
[T-Mobile Samsung Galaxy S8 Guides, News, & Discuss] Josh McGrath:
I can't get an answer to the above question either.

Now on your question, look up the specs on both phones via Google or their respective carrier pages and then Compare the band compability. TMO uses bands 2, 4, 12, 66(supposedly) and now band 77 (I think it's 77, whatever the 600mhz band is)

Of it matches you should be good. Otherwise you will be stuck on one of those bands, most likely 4 and 12.
[T-Mobile Samsung Galaxy S8 Guides, News, & Discuss] PeterTaps:
I just came across this thread. Thank you for posting it.

My Samsung S8 currently has G950U status and is carrier-locked to Sprint. If I flash G95OU1, will it automatically unlock the phone? As I understand, "UI" stands for unlocked version.

I have looked at your next message as well that talks about how to change CSC. But I am wondering if that would even be necessary if I just flash it with "UI" version.

Appreciate your help.

Regards,

Peter
[T-Mobile Samsung Galaxy S8 Guides, News, & Discuss] Totaltelecom:
Samsung experience version? Gheeeez.

I bet boot loop is fun without removable batteries.
[T-Mobile Samsung Galaxy S8 Guides, News, & Discuss] partcyborg:
No it does not unlock your phone

---------- Post added at 11:04 PM ---------- Previous post was at 11:02 PM ----------

What on earth does removable batteries have to do with bootloops?

For that matter, what does samsung experience have to do with bootloops?

0/10 couldnt understand
[T-Mobile Samsung Galaxy S8 Guides, News, & Discuss] PeterTaps:
Hello,

I have followed these steps exactly as written. However, on step 8, I am getting the following error in Odin:

<ID:0/006> FAIL! Model dismatch fail

Can someone please help me on how I can fix this?

Appreciate your help.

Regards,

Peter
[T-Mobile Samsung Galaxy S8 Guides, News, & Discuss] PeterTaps:
Thank you for your help,

My device originally came from Sprint but I wish to use it with TMB.

Following your original instructions, I had run the following command on Step 21.

$ echo "TMB" > /efs/imei/mps_code.dat

After that, I loaded G950U1.

However, I still get an "invalid SIM" message.

Should I have used "XAA/XAA/SPR" instead?

Appreciate your help.

Regards,

Peter
[T-Mobile Samsung Galaxy S8 Guides, News, & Discuss] HighOnLinux:
To help you with ODIN, you're using the official Odin and not the prince cosmy's version. Next time, flash everything through Prince cosmy's Odin.

The best you can do with being "on t-mobile" without actually going on their network is flashing their firmware. That's the best you can go when it comes from a network locked phone trying to get on T-Mobile.
[T-Mobile Samsung Galaxy S8 Guides, News, & Discuss] iphonehomemobile:
does flashing with this method provide domestic sim unlock?

does flashing with this method provide domestic sim unlock?
[T-Mobile Samsung Galaxy S8 Guides, News, & Discuss] partcyborg:
No. Nothing you can just flash will do that. You need either an ulock code or get/pay for acess to someone's unlock service Chinese mericle thing
[T-Mobile Samsung Galaxy S8 Guides, News, & Discuss] kz121:
Can anyone tell me if there is an alternative to the G950W firmware listed in step 13? I've read that it is a one way street to put the canadian package on US phones... isn't there a g950U version which can be used instead? Perhaps I am missing something and deserve a facepalm right about now...

nevermind the 12hr download for the t-mobile rom smh - updato is ungodly slow (pulling the december release for tmo)
[T-Mobile Samsung Galaxy S8 Guides, News, & Discuss] lbejta:
I think i just broke my phone its' on the Loop.
[T-Mobile Samsung Galaxy S8 Guides, News, & Discuss] mweinbach:
reflash the stock firmware.
[T-Mobile Samsung Galaxy S8 Guides, News, & Discuss] billa:
The reason why going from G950U (US) to G950W (Canadian) used to be a "one way street", is because once you flashed the Canadian version with bootloader rev-2 to the US version with bootloader rev-1 , you can no longer go back to the US firmware with the lower rev-1 bootloader. The rule is you can only go up, not down.

But now the US version also came out a rev-2 firmware, therefore you can go back and forth as long the revisions stay equal.

Hope that makes sense.

Samsung_G950U1_UES2AQL1

https://updato.com/firmware-archive-select-model?record=7990E6F5EC0F11E7A5F9FA163EE8F90B

Samsung_G950W_VLS2ARA1

https://updato.com/firmware-archive-select-model?record=D90FEDD4066511E89F15FA163EE8F90B
[T-Mobile Samsung Galaxy S8 Guides, News, & Discuss] kz121:
Here's the funny part-i was trippin about flipping from VZW to TMO- TMO said my phone was incompatible- their app confirmed- support said the same - everything i read on XDA said it too - "no band 12, no Wi-Fi calling, no digits support, mobile hot spot might not work, no system updates, etc..."

Turns out that as soon as i put the TMO SIM in, the phone asked if I wasted to re-brand and then pulled all the VZW software and installed the T-Mobile Rom on its own - all in place , no need to factory reset...

This s8 was a VZW pre-order at launch last year - still reports as being TMO/ TMO/ VZW but everything works (including band 12) and I've already received an update on 7 From TMO...

Go figure...

If anyone needs data from my system info page, let me know...
[T-Mobile Samsung Galaxy S8 Guides, News, & Discuss] philcurious:
is this still possible after the official tmo oreo update?
[T-Mobile Samsung Galaxy S8 Guides, News, & Discuss] Angeloperez226:
Boot +root
[T-Mobile Samsung Galaxy S8 Guides, News, & Discuss] rtomassetti:
/system/app/SamsungCalender/SamsungCalender.apk
[T-Mobile Samsung Galaxy S8 Guides, News, & Discuss] Omar04:
Same Question here
[T-Mobile Samsung Galaxy S8 Guides, News, & Discuss] tinginator:
I am so grateful, can I buy a cup of joe for you? Do you have that set up? sorry if I missed it.
[T-Mobile Samsung Galaxy S8 Guides, News, & Discuss] fVckingmania.hell:
This is still the way to change carrier in oreo??

Can I change carrier in a locked S8 or S8+, to then unlock it with the original carrier???

thanks in advance
[T-Mobile Samsung Galaxy S8 Guides, News, & Discuss] survivor_evil:
Can you change the carrier after wards with a command or do you have to repeat all the process?
[T-Mobile Samsung Galaxy S8 Guides, News, & Discuss] Charkatak:
[MENTION=7277512]mweinbach[/MENTION]

I know you were pretty active a year ago when I was trying to flash my unlocked s8 with TMB firmware. I have an issue with Sprint model of S8 Active. As far as I know, there is no XAA/unlocked firmware, but it seems that my device was flashed by someone and phone now shows XAA/XAA/SPR. I rememeber flashing my regular S8 and it did change to TMB/TMB/XAA... but I have tried to flash T-Mobile firmware multiple times on S8 Active and it passes, but still XAA/XAA/SPR is there in settings. It feels that nothing changes in the firmware except the build # in settings and security patch date. Do I need to flash USERDATA file as well to see the difference in the OS?

-There is one interesting thing I noticed and I don't know why, but under "Service Provider SW ver." G950U is shown. It should be G892 and not 950. It seems that someone had to flash G950U firmware file to make it XAA.
[T-Mobile Samsung Galaxy S8 Guides, News, & Discuss] awireless:
Most likely was me that did that did you buy off ebay? I flash csc of t-mobile then change to xaa and flash t-mobile stock after unlock there is no way to change the spr at the end cuz I don't think there is root for it yet.
[T-Mobile Samsung Galaxy S8 Guides, News, & Discuss] Charkatak:
I got it on eBay and seller had many of the same phones. I found out that seller changed the SPR to XAA, but I have not seen S8 Active with XAA on the market and firmware wasn't really compatible with it, but it was unlocked and all bloatware was gone. T-Mobile features were not working, including the bands 12 and 71. So I got factory binary, flashed it, then forced the CSC change to TMB. I don't have T-Mobile's bloat, except the splash screen :) The phone is taking OTA properly now and features work.
[T-Mobile Samsung Galaxy S8 Guides, News, & Discuss] Akujin:
I got G950U1UEU5CRJ2 flashed to a T-Mobile G950U Bootloader 5 with Odin v3.13.1 Raymonf

Yay no more T-Mobile splash. OTA Nov update flashed as well.

What do now? Suggestions? Happy to try things. Not scared to brick.

Oh snap there's a bonus December update which the TMo stock image doesn't have :)
[T-Mobile Samsung Galaxy S8 Guides, News, & Discuss] pasdebol:
hello sorry for my english but if i understand i can change my CSC from TMB to XAA with this method ?

I have a S8 SM-G950U from T-mobil with CRK1 build. And a Blocked bootloader (i test many tricks but i can see OEM unlock in dev mode)

Does the samsung pay and OTA still works with this method ?

Thank's a lot
[T-Mobile Samsung Galaxy S8 Guides, News, & Discuss] TheMadScientist:
OEM unlock has no bearing in the combination rom with unlocking the bootloader. If your device is rooted you lose pay secure folder and anything Knox related. Only plus with locked bootloader is you can revert stock to restore all
[T-Mobile Samsung Galaxy S8 Guides, News, & Discuss] pasdebol:
ok, i dontt really want to root at first i just want to chance CSC to global US for more quiclky update and remove T-MOBILE app, so have a full stock rom and later put a custom rom.
[T-Mobile Samsung Galaxy S8 Guides, News, & Discuss] prosan98:
Has anyone been able to flash new carrier firmware since the Pie update? I have tried to follow so many sets of instructions.

All I want to do is take an old Verizon S8 (not rooted) and flash it to work on a GSM network. It's Consumer Cellular which can use ATT, TMobile, or any unlocked GSM phone.

When I tried to flash the unlocked (G950U1) it appears to work, but then boots right back up into Verizon.

When I try to flash the carrier specific firmware for TMobile (downloaded from sammobile with a build date in July 2019), I can't get just the AP file to work. Nothing happens. When I try the factory binary at the start of this thread it fails (pretty sure that is because it's old but having trouble finding a newer one).

Please help if possible. I'm not too worried about bricking. We've upgraded to S10s, just trying to give this one to my mother-in-law!! Thank you!
[T-Mobile Samsung Galaxy S8 Guides, News, & Discuss] ben00:
I wonder if anyone can help. This might not be correct forum.

I had an S8 (G950U1) that I purchased directly from Samsung US, and used in Canada with Bell Canada, for the last 2 years. As I only have a data plan, I always utilize the native SIP client, with the stock dialer (set up the settings using QuickShortcut Maker). I have recently purchased the S10e in Canada (G970W) and I have no luck it being able to make an SIP call using the dialer. All the settings the exact same. I assumed it had something do with the fact that it is the Canadian version. I flashed the U1 firmware, from Sammobile, on it, and it is now showing XAA/XAA/XAC under software. Still have no luck using the native SIP client. Does tips mean my phone is fully US version, or is it still the Canadian version, as the last / is XAC. Would it help to flash the combination files?

Can someone please help, or guide me? I rely on that feature. Thanks.
[T-Mobile Samsung Galaxy S8 Guides, News, & Discuss] rocz.mx:
Check this:

https://xdaforums.com/galaxy-s8/how-to/how-to-make-internet-calls-incoming-t3822187

I hope it can help to solve your problem.
[T-Mobile Samsung Galaxy S8 Guides, News, & Discuss] Artofkicking:
Step 8 = FAIL

Trying to switch from Boost/Sprint to T-Mobile. Downloaded lastest firmware (AP_G950USQS7DTB3_CL17214672_QB29487654_REV01_user_low_ship_MULTI_CERT_meta_OS9.tar).

I keep getting a Fail after "setting connection" in Odin 3.12.7

What am I missing here? Just to be clear I am following the steps word for word. Should I be loading files other than AP into Odin?
[T-Mobile Samsung Galaxy S8 Guides, News, & Discuss] Artofkicking:
modified Odin

Is there a new link for Odin modded? Currently I have this one, (Modded Odin v3.13.1 Raymonf) Is it the correct one?
[T-Mobile Samsung Galaxy S8 Guides, News, & Discuss] elliwigy:
it will work
[T-Mobile Samsung Galaxy S8 Guides, News, & Discuss] Artofkicking:
When I use Odin and put in the AP in the file for T-Mobile then press start, how long does it usually take for the phone to pass and then restart?
[T-Mobile Samsung Galaxy S8 Guides, News, & Discuss] OuijaElite:
THE FLASHING process should only take about 3-5 min, then it reboots and starts to load. Loading can take anywhere from several minutes , to 10, before loading os. Any longer than loading for 15 MAX reboot phone, let l=it try again.. the s6 i had took almsot 20 minutes first boot fter flashing
[T-Mobile Samsung Galaxy S8 Guides, News, & Discuss] Artofkicking:
Thank you

I gave my S8 about 20 minutes before I just gave up on it next time I'll let it sit and see what happens a little bit longer maybe up to an hour I don't really know. Thank you for the reply.
[T-Mobile Samsung Galaxy S8 Guides, News, & Discuss] noviceXDAers:
what are the pre requisites? do i need to root the s8 first? please help master. thanks in advance

---------- Post added at 06:53 AM ---------- Previous post was at 06:48 AM ----------

Hi, I just want to ask if there is a pre requisites for this? Do I need to root my phone (s8 att) or it is not neccessary? Thanks
[T-Mobile Samsung Galaxy S8 Guides, News, & Discuss] shandell31:
No
[T-Mobile Samsung Galaxy S8 Guides, News, & Discuss] Acoustichayes:
So back to trying to elevate privileges through an exploit in NFC. anyone here capable of developing an app that just spams the NFC vulnerability until an overflow happens?

Or someone on here start working for Samsung so you can just make a custom rom signed to be flashed to these ha ha

I'm just confused as to why we aren't even able to flash the engineering build. Like what the hell did Samsung do...

I just started reading that book - android security internals, an in depth guide to Android security architecture, because I'm like overly dedicated to making this root happen.

I'm going to talk to a friend that works for Samsung. She's a low level employee so she won't know much, but hoping she can put me in contact with someone that does know something

. Edit.- ****. I posted this to the wrong thread. Well, still good, buy wanted the other. Please delete this comment
[T-Mobile Samsung Galaxy S8 Guides, News, & Discuss] Logix:
this depends on how you are rooted.... or more specifically not rooted when using samsung pay/android pay.
[T-Mobile Samsung Galaxy S8 Guides, News, & Discuss] r3w1NNNd:
I had the TMobile V10/V20 in mind.

Maybe I wasn't clear in the thought process.

by comparison, on the TMo V10/V20, you will need to run dirtycow so that you will get the permissive selinux context.

Once in permissive, we would have re-run the

$ cd /data/local/tmp

$ ./dirtycow /system/bin/run-as recowvery-run-as

$ run-as exec ./recowvery-applypatch boot

that would have allowed us to run-as su

Once temproot, we could have pushed the su binary, like on the S7.

I'm not talking about the v20 spr, att, vzw. Those do get to have the us996 boot image.

or this would be bound to fail because of the

$ run-as exec ./recowvery-applypatch boot

command ?
[T-Mobile Samsung Galaxy S8 Guides, News, & Discuss] twe90kid:
chainfire got the ENG file! he's working on root

https://twitter.com/ChainfireXDA/status/867011524027658240
[T-Mobile Samsung Galaxy S8 Guides, News, & Discuss] mweinbach:
We are already permissive. We are in the proccess of getting chainfire to release a engboot .bat file like he did for the S7. He said he is working on it.
[T-Mobile Samsung Galaxy S8 Guides, News, & Discuss] elliwigy:
that is not the issue if you read further permissive isnt the problem.. its the fact the engboot doesnt have write permissions to the system.. you cant create a root.bat until he figures out the write permission issue or theres no way at all to push the su binaries
[T-Mobile Samsung Galaxy S8 Guides, News, & Discuss] Acoustichayes:
Sounds like he's having the same issue as the rest of us working on this
[T-Mobile Samsung Galaxy S8 Guides, News, & Discuss] mweinbach:
Updated with working carrier switch
[T-Mobile Samsung Galaxy S8 Guides, News, & Discuss] Acoustichayes:
So the eng boot files, do they contain proper root? I noticed you said chainfire got it to work, so was just verifying if it is a standard odin, or if CF had to take other steps as well
[T-Mobile Samsung Galaxy S8 Guides, News, & Discuss] guaneet:
thanks for this!! finally back on tmb/tmb/tmb lol!
[T-Mobile Samsung Galaxy S8 Guides, News, & Discuss] mweinbach:
Maybe. We have not gotten proper root. Chainfire is working on it.
[T-Mobile Samsung Galaxy S8 Guides, News, & Discuss] elliwigy:
his comment in OP is very misleading.. Chainfire did not say it is on its way lol.. in fact he confirmed what we have been saying all along.. so far looking at his twitter he only looked at it for half an hour and said no root yet and the eng boot doesnt have write access
[T-Mobile Samsung Galaxy S8 Guides, News, & Discuss] Acoustichayes:
That is extremely disheartening. I'm still waiting on my Samsung rep to get back to me as well
[T-Mobile Samsung Galaxy S8 Guides, News, & Discuss] wolfgart:
what it mean "Carrier switch" ?

For example, can a tmo locked S8 put every other sim operator to go working ?
[T-Mobile Samsung Galaxy S8 Guides, News, & Discuss] mweinbach:
You can put your TMO phone on any US carrier. If you set it to XAA it would work anywhere.
[T-Mobile Samsung Galaxy S8 Guides, News, & Discuss] wolfgart:
any other worldwide carrier too ? I suppose
[T-Mobile Samsung Galaxy S8 Guides, News, & Discuss] mweinbach:
What is, no root? I think that no root is fine. Saves us from bricked devices. I do want it though, this thread is now more of a carrier switch BUT I think we will get root.
[T-Mobile Samsung Galaxy S8 Guides, News, & Discuss] mweinbach:
XAA supports all bands. I don't know if it would work with all international carriers BUT from my research it should work. The TMO variant works internationally.
[T-Mobile Samsung Galaxy S8 Guides, News, & Discuss] wolfgart:
i only hope that when all is ready to flash we will have a perfect stable Eng Kernel for our S8, because previous S7 Eng boot was very buggy for hot and system speed and reactivity
[T-Mobile Samsung Galaxy S8 Guides, News, & Discuss] mweinbach:
the current EngBoot is stable BUT doesnt have root permissions.
[T-Mobile Samsung Galaxy S8 Guides, News, & Discuss] elliwigy:
the one i was running wouldnt allow charging past 80% either lol
[T-Mobile Samsung Galaxy S8 Guides, News, & Discuss] wolfgart:
about system reactivity was the same of your stock FW ?
[T-Mobile Samsung Galaxy S8 Guides, News, & Discuss] twister082179:
thanks, very helpful
[T-Mobile Samsung Galaxy S8 Guides, News, & Discuss] Cozmo85:
So wait, is this fully figured out now? Anyone done the unlocked XAA yet on a 950U?
[T-Mobile Samsung Galaxy S8 Guides, News, & Discuss] elliwigy:
he just posted it lol
[T-Mobile Samsung Galaxy S8 Guides, News, & Discuss] Acoustichayes:
As a rom and mod developer, no root is very disheartening lol. Especially when it's on my daily. I'm not worried about a brick personally.

If anything, when tmobile gets the free third line again, (which should be once more before the year is over) and grab another phone. Or trade mine for an exynos. Maybe. Technically the exynos has slightly better benchmarks, but from the forums I've seen people say that they are not as smooth as the snapdragon
[T-Mobile Samsung Galaxy S8 Guides, News, & Discuss] ItzApp:
Reverting to VZW

Can you try to go back to full VZW/VZW/VZW? I want to see if it is possible to revert back to stock after doing this for warranty purposes. Also, where would I put the engboot to flash it in the modded odin and can u post a link to the files used for this?

---------- Post added at 01:30 AM ---------- Previous post was at 01:28 AM ----------

Do you get all the T-Mobile features like wifi-calling and Voice Over LTE? And does your software update actually work when checking for updates?
[T-Mobile Samsung Galaxy S8 Guides, News, & Discuss] wolfgart:
and FM Radio too ?
[T-Mobile Samsung Galaxy S8 Guides, News, & Discuss] Cozmo85:
Yea i just mean, if we do this and do XAA it should be identical to the unlocked model coming out in a few days?

Can you explain what it means when people say XAA/XAA/VZW vs XAA/VZW/VZW
[T-Mobile Samsung Galaxy S8 Guides, News, & Discuss] mweinbach:
They do. On Verizon I was able to get Verizon software updates. I was on T-Mobile and switched to XAA/XAA/TMB. I have VoLTE and Wifi Calling. A Verizon phone on TMB/TMB/VZW should also have those.
[T-Mobile Samsung Galaxy S8 Guides, News, & Discuss] mweinbach:
XXX/XXX/XXX

The first XXX value in the carrier SW version is the bloat/userdata being flashed

The second is the CSC features being added

the third is the hardware that you have. We can't rewrite this without root, or we haven't found out how yet.