yashsingh1/xdaforums huggingface dataset:
[Samsung Galaxy S8 Guides, News, & Discussion] mweinbach:
one we get root we SHOULD be able to change the last one. Don't know though. also doesn't matter that much so.
[Samsung Galaxy S8 Guides, News, & Discussion] robinabdullah:
My desired carrier is ETR Bangladesh

Can i change the carrier from TMB to ETR Bangladesh ?? will it work ??

echo "ETR" > /efs/imei/mps_code.dat
[Samsung Galaxy S8 Guides, News, & Discussion] elliwigy:
when u get eng u can do w.e u want carrier wise.. for example:
[Samsung Galaxy S8 Guides, News, & Discussion] billa:
Thanks, I found exactly what I was looking for, it's down at the bottom of the list (need to scroll down a bit), showing:

"Don't change carrier (for DEV/QA)"

Looks like this option was included at the bottom of the menu for testing purposes which allows the last carrier code (either selected manually or through the insertion of a sim) to stick permanently, till you untick the "Don't change carrier (for DEV/QA)".

Quite handy if you're tired waiting for the re-configuration every time you insert a new carrier's sim, or just want to stay on a particular carrier code even after a different carrier sim card has been inserted.
[Samsung Galaxy S8 Guides, News, & Discussion] mweinbach:
if you flash the G950U1 HomeCSC then the G950W HomeCSC it brings that up btw.
[Samsung Galaxy S8 Guides, News, & Discussion] elliwigy:
correct lol.. thats bcuz every firmware is multi csc.. only thing that differs slightly is how to get to point b, some easier than others.. just pointing out the eng firm makes things dlightly easier to access, more options etc. but yes, technically no one needs to flash this or flash that to change carriers lol they could do it from any set up they have lmao
[Samsung Galaxy S8 Guides, News, & Discussion] billa:
You're right, once you flash the eng-boot/combo, then dial *#243203855# you can change carriers on the fly AND even freeze it on the last one selected by tapping the "Don't change carrier (for DEV/QA)". It's amazing like the iPhone... well, not really!! ... haha
[Samsung Galaxy S8 Guides, News, & Discussion] shahmaulik42:
I just did this successfully! It flash sprint firmware on tmobile phone.

i flash sprint firmware on tmobile phone. it shows sprint boot logo and everything works good but however when i put phone in download mode on top it shows carrier TMB. so original carrier of phone is still tmobile. is it supposed to be like it or i did anything wrong?
[Samsung Galaxy S8 Guides, News, & Discussion] timp123:
Well I followed the instructions in the OP, flashed factory firmware, changed my CSC to AIO (Cricket), and then flashed the AT&T firmware just to be safe. I now get the Cricket splash screen when I boot up the phone, and everything seems to work fine.

Unfortunately VoLTE didn't work after flashing, so being at my wit's end I decided to try swapping my SIM with my wife's (who has an iphone 7). Voila, VoLTE worked fine on my S8 with her SIM, but did not work in her iphone using my SIM.

So I called Cricket and they insisted that HD voice appeared to be enabled on their end. After a couple of calls and many many reboot later, I got a new SIM card for my number and activated it in my wife's iphone. VoLTE worked. Then I transferred it to my phone and put her original SIM back, and had VoLTE working on both phones...until today. Now my phone has again lost VoLTE.

My guess is that Cricket/AT&T eventually figures out that your device IMEI is not branded, and they eventually disable your VoLTE. If this is the case, I guess it wouldn't matter which firmware is on the phone. Has anybody else had this experience?
[Samsung Galaxy S8 Guides, News, & Discussion] netzih:
Maybe someone here has insight, I have the unlocked version of G955U1 with stock firmware (never played with it, so U1) and I am on Sprint, sprint just added calling plus (basically using data while on a call) problem is it seems it is only on sprint devices not on the unlocked version,

What do I need to flash (and how) in order to get the calling plus feature on my U1?

Thanks for any help.
[Samsung Galaxy S8 Guides, News, & Discussion] Zevin055:
Did you ever figure this out? I'm having the same issue. Switching from ATT to tmobile

---------- Post added at 03:16 AM ---------- Previous post was at 02:59 AM ----------

If anyone can help me out id appreciate it. I'm on the step where you select XAC in IME but XAC is not an option. I am trying to go from ATT to tmobile.
[Samsung Galaxy S8 Guides, News, & Discussion] billa:
Others have reported that as long as you can access the IME menu with U1 firmware, it's not necessary to select XAC, just go directly from ATT to TMO, then flash the CSC part only of the TMO "U" (not the "U1"!!) firmware to enable all the carrier features. ymmv
[Samsung Galaxy S8 Guides, News, & Discussion] nimms:
I don't think so. The CSC you are flashing in this procedure (Canadian W version) does not have your CSC built into the file). You need to flash a CSC tar image with ETR built into it. And there are no snapdragon CSC files with INS or ETR built in (only Exynos dual sim models in your region)

You may try n report.
[Samsung Galaxy S8 Guides, News, & Discussion] robinabdullah:
don't have any idea about n report

What is n report !! i dont get it ?? is there any way to unlock my carrier ETR Bangladesh
[Samsung Galaxy S8 Guides, News, & Discussion] shahmaulik42:
Get PIT for mapping error in ODIN.

so i followed this and everything was successful. but now when i try to flash it with odin it gives me pit mapping error. i tried with 3 different firmware, g950u sprint, g950w canadian and also the original g950u from tmobile. what should i do now because my phone is on factory binary mode and not usable for now.
[Samsung Galaxy S8 Guides, News, & Discussion] Zevin055:
So I select TMB and install then skip the adb shell command and then flash TMO csc?
[Samsung Galaxy S8 Guides, News, & Discussion] billa:
It's probably an Odin error, so try both of these versions to see which one works for you.

Samsung_Odin_v3.12.7.ZIP

https://www.androidfilehost.com/?fid=889764386195917520

Samsung_Odin_v3.12.3_Patched.ZIP

https://www.androidfilehost.com/?fid=745425885120715012

Yes, because when you change the CSC through the menu it does the internal code change without adb, then just flash the TMO CSC from the "U" not the "U1".

For me, once I changed the CSC to TMO I didn't even have to flash the TMO CSC "U", and was still getting VoLTE service, but just for completeness you may want to do it anyway.

The Canadian G930W intermediate flash was developed before the unbranded "U1" came out, so now it's much easier.

Also, while you're in that CSC menu scroll to the bottom, and if you see something like "Don't change carrier (for DEV/QA)", tap it once to disable the auto-CSC change when you insert a non-TMO sim. (just as a precaution, but not absolutely necessary).

You could try flashing it with the unbranded "U1" first, then the CSC part only of the SPR branded "U".

It has been reported that sometimes simply having the correct firmware is not enough for some carriers to allow certain specific feature like Calling Plus or VoLTE. Here's a post about a similar issue but with ATT

https://xdaforums.com/showpost.php?p=73411034&postcount=632

Since the US "U/U1" firmware doesn't have your particular CSC, your best option would be to select XAA which is a generic with ALL the bands enabled, minus any specific carrier customization.

"n report" is shorthand for "and report"... lol
[Samsung Galaxy S8 Guides, News, & Discussion] Zevin055:
so I did it and it comes up tmobile software now but when I put my tmo sim in it says invalid sim. doesn't ask to be unlocked.
[Samsung Galaxy S8 Guides, News, & Discussion] netzih:
So I got the firmware all on correctly, but now i only get 3G and not getting LTE

What did I do wrong???
[Samsung Galaxy S8 Guides, News, & Discussion] Zevin055:
Now I'm trying to switch it back to att so I can try and unlock the phone and I cant get to the IME setting because this error
[Samsung Galaxy S8 Guides, News, & Discussion] datchico305:
I have the unlocked version of the s8 but when i flashed the T-Mobile firmware it has the metropcs bloatware and splash screen is there a reason why its doing this?
[Samsung Galaxy S8 Guides, News, & Discussion] migueli2:
Sorry about this question but, isn't just simple as this? (like it says on Sammobile)

"

Instructions

Extract (unzip) the firmware file

Download Odin v3.12.7

Extract Odin ZIP file

Open Odin v3.12.7

Reboot Phone in Download Mode (press and hold Home + Power + Volume Down buttons)

Connect phone and wait until you get a blue sign in Odin

Add the firmware file to AP / PDA

Make sure re-partition is NOT ticked

Click the start button, sit back and wait few minutes

"

---------- Post added at 11:30 AM ---------- Previous post was at 11:29 AM ----------

Sorry about this question but, isn't just simple as this? (like it says on Sammobile)

"

Instructions

Extract (unzip) the firmware file

Download Odin v3.12.7

Extract Odin ZIP file

Open Odin v3.12.7

Reboot Phone in Download Mode (press and hold Home + Power + Volume Down buttons)

Connect phone and wait until you get a blue sign in Odin

Add the firmware file to AP / PDA

Make sure re-partition is NOT ticked

Click the start button, sit back and wait few minutes

"
[Samsung Galaxy S8 Guides, News, & Discussion] bradhoschar:
Try this, guy.

https://xdaforums.com/galaxy-s8/how-to/rd-carrier-switch-root-snapdragon-t3597473
[Samsung Galaxy S8 Guides, News, & Discussion] robinabdullah:
if u are telling me to follow these steps below then i have tried this but it says

"invalid sim card inserted"

See 21th step : I have changed the carrier to XAA through adb shell
[Samsung Galaxy S8 Guides, News, & Discussion] beerdedgeek:
Step 5

I'm a noob to android. been on apple since 2009. i have an s8+ (g955u) that is currently on sprint fw and i want to switch to tmobile. i have all the files downloaded that i need but when i go to add the factory binary to the ap section of odin, there is nothing available for me to select. i downloaded the COMBINATION_FA70_G955USQU1AQCF_CL11021239_QB13008149_REV00_user_mid_noship_MULTI_CERT.tar.zip file and extracted it. i know i'm missing some step. just don't know what it is. any help would be greatly appreciated.

thanks
[Samsung Galaxy S8 Guides, News, & Discussion] nimms:
First you need to get the SIM/network unlocked by t-mobile, this procedure won't unlock the network. go back to tmobile firmware, unlock the SIM/network lock, once you get your signal with bangladesh sim, then flash unlocked firmware.

---------- Post added at 09:11 PM ---------- Previous post was at 09:10 PM ----------

Must've unzipped twice... ;) (unzip only once.. should end up with tar file)
[Samsung Galaxy S8 Guides, News, & Discussion] robinabdullah:
carrier unlock

is there any way to unlock the network without t-mobile company ?? I thought this thread shows carrier unlock by following some steps.
[Samsung Galaxy S8 Guides, News, & Discussion] gqukyo:
Where did you read this thread was for carrier unlocking? It's always been about carrier SWITCHING.
[Samsung Galaxy S8 Guides, News, & Discussion] scoeas1982:
hey guys i have a Verizon G955U and i keep gettting the permission denied when trying to do the code.dat. I have read through whole entire forum but seems i cant find an answer to myy solution. I have no issue doing sprint. Verizon seems to be a pain. I followed instructions both ways in OP but again no success. Is their a way to do a s8 plus to make tmo thanks
[Samsung Galaxy S8 Guides, News, & Discussion] pholad:
Hello everyone out there

I have galaxy s8 plus tmobile and I flashed to Canadian firmware now I would like to go back to T-Mobile in order to get the tmobile device unlock app work again

can you please help me to get the T-Mobile stock ROM completely thank you all
[Samsung Galaxy S8 Guides, News, & Discussion] zbkk21:
I wish I knew how to do that

If I knew how to do this or had someone close to me that knew how to do it I'd have mine switched from att to tmobile.
[Samsung Galaxy S8 Guides, News, & Discussion] C3cars:
Interested too...

I am interested in this as well, due to the fact that the unlocked s8 doesn't support 256qam and MiMo which results in slower speeds.

I have the G950U1 and would like to have T-Mobile video chat, RCS, and 256qam, MiMo, would we be able to obtain this without the full T-Mobile firmware?
[Samsung Galaxy S8 Guides, News, & Discussion] robertyanta:
hello i have a sim locked s8+ from tmobile, can i switch it to spring an get unlock done via z3x box method??﻿ the reason is because im in cuba and i have z3x unlock box which can do a permanent unlock to the spring variant... thanks in advance and sorry for my English
[Samsung Galaxy S8 Guides, News, & Discussion] qteezy2015:
I just rooted and switched to Att and want to go to TMobile.. do I need to do this all over again or can I just flash the firmware in Odin? Don't care if I lose root
[Samsung Galaxy S8 Guides, News, & Discussion] polorsport:
Where can you Download Factory Binary for the Samsung S8+?
[Samsung Galaxy S8 Guides, News, & Discussion] NexusS4gFreak:
Trying to take a straight talk/TracFone to Verizon, which should I flash?
[Samsung Galaxy S8 Guides, News, & Discussion] Friendlyx355:
I currently have a Samsung S8+ SM-955F and i wanted to know if i could change the carrier to US Unlocked? Thank you!
[Samsung Galaxy S8 Guides, News, & Discussion] Rally517:
In order to switch carriers as in being able to use they're towers instead of boost mobile. Would I need that carriers sim card? I didn't have to on s7edge. Cause my boost mobile data speeds are slow. I thought I flashed to At&t. But my data speeds are still slow. And I just got off a contract with at&t so I know speeds are way faster then what im getting now. Ty
[Samsung Galaxy S8 Guides, News, & Discussion] shaunnz:
Unlocked S8 T mobile

Thought i would mention, have successfully had my Tmobile S8 unlocked by unlockbase.com, quite expensive but it worked.
[Samsung Galaxy S8 Guides, News, & Discussion] Rally517:
Hey. Last question. Cause as you already know I'm on body mobile wanting to run Verizon or T-Mobile on my phone. Do I need to switch sim card? Cause I've tried every possible way to get data after I go thru process. Only way data comes back or network is if I flash u1 on top. But my speeds are still slow like boost mobile. Maybe I should foo process without my son card in? Judy looking for your in site. Thanks for all your help:svetius:

---------- Post added at 02:10 AM ---------- Previous post was at 01:24 AM ----------

So basically im saying I wanna. Run my boost mobile off another carrier network. With all they're features. Is that possible? Thought I was pretty savy. But I'm at a lose. Cause right now I believe I'm on at&t firmware cause my phone looks a little different with the lte signal looking different. But I still have my slow boost speeds.
[Samsung Galaxy S8 Guides, News, & Discussion] GrandMstrBud:
1. Download Factory Binary, EngBoot, and the G950W firmware. (i dont think engboot is needed i did it without eng boot and works)

Where do i get these files?

Where is modded Odin?

Is there an easier way by just downloading the carriers firmware and flashing it entirely?
[Samsung Galaxy S8 Guides, News, & Discussion] EnduringGuerila:
Any idea if this will work on the S8 Active?
[Samsung Galaxy S8 Guides, News, & Discussion] elliwigy:
is it a g955u or g950u??
[Samsung Galaxy S8 Guides, News, & Discussion] EnduringGuerila:
Where do I find this?

The only thing I can think of is the model #: SM-G892A
[Samsung Galaxy S8 Guides, News, & Discussion] GrandMstrBud:
Anyone have a working guide with d/l links?
[Samsung Galaxy S8 Guides, News, & Discussion] stmims1124:
That was his point... You do not have the same phone. The active is a different phone, meaning different firmware, meaning noooooo it will not work at all
[Samsung Galaxy S8 Guides, News, & Discussion] EnduringGuerila:
The phones are so similar, things do carry over. Just like the S7 and S7 Active, us Active owners got root using a S7 method.

I assumed we would not be able to flash the exact firmware.

If nothing else, maybe someone could add the S8 Active to XDA...
[Samsung Galaxy S8 Guides, News, & Discussion] stmims1124:
I def. see where you're coming from though. There's a decent probability that the method itself will work, but required device specific firmware files. Like this root method [MENTION=3812611]elliwigy[/MENTION] and team created... The actual method may very well be similar, but need the engineering files, etc. unique to the Active. But they'll probably update the bootloader to block that **** soon anyway, assuming the files were made available, after learning what's been done of the S8/S8+

---------- Post added at 02:55 AM ---------- Previous post was at 02:45 AM ----------

Including this guide, there's like 3 of them. Which files are you looking for, and for which phone?
[Samsung Galaxy S8 Guides, News, & Discussion] GrandMstrBud:
I have the unlocked S8 variant and I'd like to have VVM and WiFi calling. I tried this guide and it didn't have all the downloads. Tried another guide and that failed in odin.
[Samsung Galaxy S8 Guides, News, & Discussion] stmims1124:
https://xdaforums.com/tmobile-galaxy-s8/how-to/eng-boot-root-t3608353/post72333570#post72333570

Maybe check out [MENTION=7277512]mweinbach[/MENTION] 's thread....I think this was the 1st thread on carrier switching. The downloads are in the first post (I think his link to the U1 firmware is dead, so just go to updato.com to download the latest build...the rest of the links are good). His instructions for the carrier switching are in the second post.
[Samsung Galaxy S8 Guides, News, & Discussion] GrandMstrBud:
Yes I seen that one and didn't do it because it doesn't make sense once it gets to step 15. What is open IME settings on factory binary? That and the steps after it.

15. Open IME setting on Factory Binary

16. Type in *#243203855#

17. Select XAC

18. Click install

19. Wait for phone to reboot
[Samsung Galaxy S8 Guides, News, & Discussion] elliwigy:
lol if ur model is g892a its not the same as g955u/1 or g950u/1 so the answer is no, it wont work.. they are completely different devices..

now if you were to flash the sampwnd files and somehow it works then ur set, but chances are they will fail miserably in odin

---------- Post added at 12:02 PM ---------- Previous post was at 12:00 PM ----------

big difference there.. u had similar files for s7 active that were released on s7 and you just used the root script correct? either way, u can always try to odin the files but ud need the full 4 files firmware to flash

---------- Post added at 12:06 PM ---------- Previous post was at 12:02 PM ----------

i take that back.. if u can get just the system.img to flash and have a combo firm available for s8 active it would probably work but i have no way to test it.. if for some miracle it flashes system.img from eng itll be wonky until step 2 of the sam pwnd process

so basically take the sampwnd firmware, extract system.img from ap slot, tar system.img ony then try to flash in odin..

if that works then pm me and ill whip something up lol but i doubt it
[Samsung Galaxy S8 Guides, News, & Discussion] stmims1124:
I believe that just means go to the dialer to type in the IME service code *#243203855# , and then take it from there.

There are a metric f**k-ton of service codes you could type in to find various hidden menus
[Samsung Galaxy S8 Guides, News, & Discussion] rugene:
need some help to change a verizon S8 to tmobile

hi everyone, please bear with me.

Can someone rearticulate the firmware update procedure with some more detail? I'd hate to brick my phone.

I want to switch the firmware on my Verizon S8 (SM-G950U) to the tmobile version so that I can fully enjoy all their capability such as wifi calling, volte, band 12 etc.

Although I am technical, I am not clear on the instructions to do this and where to reliably get the firmware. I'm seeing many posts on this thread that have left me somewhat confused having never done this before.

Many thanks, rugene
[Samsung Galaxy S8 Guides, News, & Discussion] The Knuckle:
firmware

Id like some clarity on firmware and which one you are supposed to download.

I have a Tmobile S8+ in the USA

***do you need to actually flash the Tmobile region specific firmware ? or could I just use a USA region XAA product code firmware?

I just want to switch carriers, specifically to At&T
[Samsung Galaxy S8 Guides, News, & Discussion] uwapalwa:
You mean this method unlocks a sprint phone to work with other carriers?
[Samsung Galaxy S8 Guides, News, & Discussion] Rally517:
No it doesn't carrier unlock. Only cell companies or pay for unlock code will do that. But once you have you can change to different carriers as long as the are same. As in cdma or gsm phones.
[Samsung Galaxy S8 Guides, News, & Discussion] uwapalwa:
You mean like flash tmobile firmware on an ATT phone?

If thats what you mean, isnt it easier to just use odin princecomsey instead of doing all those 20something steps?
[Samsung Galaxy S8 Guides, News, & Discussion] Rally517:
I just did steps. But I see what you mean. I got confused too.
[Samsung Galaxy S8 Guides, News, & Discussion] GrandMstrBud:
<OSM> All threads completed. (succeed 0 / failed 1)

Why did I even attempt this

---------- Post added at 10:24 PM ---------- Previous post was at 10:12 PM ----------

<OSM> Enter CS for MD5..

<OSM> Check MD5.. Do not unplug the cable..

<OSM> Please wait..

<OSM> Checking MD5 finished Sucessfully..

<OSM> Leave CS..

<ID:0/003> Added!!

<ID:0/003> Odin engine v(ID:3.1207)..

<ID:0/003> File analysis..

<ID:0/003> SetupConnection..

<OSM> All threads completed. (succeed 0 / failed 1)

Please help
[Samsung Galaxy S8 Guides, News, & Discussion] geoff5093:
Since I use my S8 on Sprint, I'm wondering if by flashing the Sprint firmware if I'd get access to Calling Plus and/or HPUE or whatever their band 41 improvement technology is.
[Samsung Galaxy S8 Guides, News, & Discussion] GrandMstrBud:
I wouldn't do it, this guide doesn't work for me and had to restore my phone.
[Samsung Galaxy S8 Guides, News, & Discussion] syndicasian:
I got this info from a member on the Sammobile forum name Beatsbudoctordre1 . I am having the same issue and will be trying this later today to see if it works.

1)Download the official firmware for your model

2) Boot into download mode by pressing ( power + volume down + Bixby button) and stop at the screen of continue and reboot.

Press volume down to restart phone

Quickly boot back into download mode by pressing (power + volume down + Bixby button)

Press continue

Congratulations fully working now

3) Install firmware with Odin

4) Wait for the firmware to be installed

5)Ready)))
[Samsung Galaxy S8 Guides, News, & Discussion] GrandMstrBud:
FYI I did download the official Verizon firmware and attempted to flash that and it still failed.
[Samsung Galaxy S8 Guides, News, & Discussion] Rally517:
I wonder if i flash version firmware on my boost s8. Will the NFL app work? Any thoughts
[Samsung Galaxy S8 Guides, News, & Discussion] preslavchooo:
Hello !

I have buy a G950U wich is from T-Mobile and the phone is with BAD ESN. Now I'm in my country Bulgaria and I want to use phone here. If I change the carrIer OR if I flash firmware with some other carrier can I use the phone with my Bulgarian sim card, without unlocking the device ? Because last year I buyed a Galaxy S7 again with BAD ESN for AT&T and when I put my Bulgarian SIM card the phone is working perfect. But maybe with T-Mobile is not same like AT&T.
[Samsung Galaxy S8 Guides, News, & Discussion] XDANibblet:
Can someone please tell me how to flash the engboot (shown on first post) with odin? I can't find instructions anywhere. Thank you!
[Samsung Galaxy S8 Guides, News, & Discussion] Rally517:
BL I believe
[Samsung Galaxy S8 Guides, News, & Discussion] Clodoveos:
Sprint users, do you need MSL code to do this?

Sprint and its stupid MSL code prevents editing APN etc