yashsingh1/xdaforums huggingface dataset:
[Samsung Galaxy S8+ Guides, News, & Discussion] kanchyhemboy:
Are you getting a snapdragon one? I've wanted to do this too I have a SD one and I'm in India.
[Samsung Galaxy S8+ Guides, News, & Discussion] nimms:
Yes. Sprint version. Did u try this guide with Worldwide CSC (in place of XXX, use GCF code. it's for worldwide usage not specific to US carriers) in step 21? Don't think it would work... try if possible. Am getting mine by 10th Aug. I'll try flashing Indian S8 CSC via Odin (Just CSC on U1 firmware). if anything goes wrong, we can flash to factory again
[Samsung Galaxy S8+ Guides, News, & Discussion] kanchyhemboy:
Where is the Indian csc tho? Even I've wanted to do exactly that since long.
[Samsung Galaxy S8+ Guides, News, & Discussion] SomeAsianDude:
[MENTION=8352198]Mike15678[/MENTION]

Hey, I was wondering if the unlocked version you provided would work with an S8+ with the model number SM-G955U.

I bought it from a friend and its an AT&T phone. However, its unlocked and I want to carrier switch and then flash an unlocked firmware. That would work out alright, yeah?
[Samsung Galaxy S8+ Guides, News, & Discussion] Mr. Orange 645:
There's multiple threads on this already. Yes you can Flash the unlocked firmware for the 955U1 on a 955U carrier device. They are the same exact hardware.
[Samsung Galaxy S8+ Guides, News, & Discussion] SomeAsianDude:
Thanks for the response, I can't get responses elsewhere :(.

If I flash a unlocked firmware, updates will work as normal or will I need to sideload/flash updates as they come?
[Samsung Galaxy S8+ Guides, News, & Discussion] jlord:
You will get the Unlocked OTA updates as they become available. But probably a few weeks after the carrier updates, so don't worry if it takes a while to get them.
[Samsung Galaxy S8+ Guides, News, & Discussion] SomeAsianDude:
Do I have to carrier switch to unlocked to flash an unlocked firmware?
[Samsung Galaxy S8+ Guides, News, & Discussion] jlord:
There is no carrier switch to unlocked. Just follow the Flashing Unlocked Firmware section.
[Samsung Galaxy S8+ Guides, News, & Discussion] Mr. Orange 645:
So you have an ATT device, but you're wanting to carrier switch? Which carrier do you plan to use it on?
[Samsung Galaxy S8+ Guides, News, & Discussion] SomeAsianDude:
Yes I have an ATT device, its already unlocked though. I was just wondering if carrier switch did anything? Does it just let me flash a T-Mobile version firmware? Because regardless, my device will never be TMB/TMB/TMB because the last 3 are hardwired into the device.

Carrier Switching doesn't wipe the device, correct?
[Samsung Galaxy S8+ Guides, News, & Discussion] Mr. Orange 645:
Well, you can flash whichever carrier firmware you want on it, though ATT or Unlocked would be the best if you run it on ATT. With the Unlocked firmware, it will automatically provisioned itself based upon the SIM card you install. It will still be unbranded and bloatware free, but it optimizes bands, etc, for that carrier. You don't have bloat, but you won't have all the features. For example, my Unlocked 955U1 on T-Mobile will allow me to use WiFi calling and VOLTE, but not video calling or RCS text messaging.

With ATT, you have to be running the ATT firmware to get VOLTE and WiFi calling, but you get the bloatware with it. And no, the last three characters will never change, but that doesn't matter.

As far as updates, whether you're running the Unlocked firmware or the carrier firmware, you'll get regular OTA updates.

Carrier switching and/or flashing the Unlocked firmware will wipe your device.
[Samsung Galaxy S8+ Guides, News, & Discussion] nimms:
You need to download s8+ full indian firmware from updato and extract to find csc.. try with princecomsy odin

Back up first.
[Samsung Galaxy S8+ Guides, News, & Discussion] kanchyhemboy:
Irdk how I was so dumb as to not get the idea to do that.... downloading it now I'll let you know how it goes
[Samsung Galaxy S8+ Guides, News, & Discussion] :
In the second update it says that if I flash AT&T I have to manually OTA update. Does this also apply if I already have an AT&T S8+? I just want to go back to stock using ODIN. Will that break OTA for me?
[Samsung Galaxy S8+ Guides, News, & Discussion] kanchyhemboy:
Just tried it and flashed back to unlocked firmware, I tried with the t-mobile files first and the home-csc of india. Funnily, odin crashed, also almost crashing my heart. When i tried to go into download mode after that, it said error, use smart switch, but in the menu before that, i pressed restart and it actually booted.

But, some features werent working. And weirdly, samsung health thought the phone was rooted, and kept crashing saying "samsung health cant run on a rooted phone"(lol can this help root progress?)

Then, i tried with unlocked firmware and indian csc and it the secure PIT error keeps turning up. So that seems to be the problem.

Im back at unlocked firmware now.

Should i post this in the root progress thread? Or was it just a fluke?
[Samsung Galaxy S8+ Guides, News, & Discussion] nimms:
S-Health must have noticed file mismatch or something.. need not be a root thing.

Did you use Prince comsey ODIN? If that doesn't work, may be swapping to Unlocked version pit file(DREAM2QLTE_USA_SINGLE.pit) into CSC tar file in place of DREAM2LTE_EUR_OPEN.pit could work? may be risky playing with pit files (but we are not choosing re-partition, so should be ok?)

Try CSC not Home CSC.
[Samsung Galaxy S8+ Guides, News, & Discussion] Mr. Orange 645:
No that's only when you flash ATT firmware on a 955U1. If it was an ATT device originally then OTAs won't be an issue. It will function as normal.
[Samsung Galaxy S8+ Guides, News, & Discussion] :
I flashed AQF7 but my phone says it's up to date and I am not receiving an OTA update to AQG1. I have not changed my carrier firmware and I'm still on att/att/att. Any reason I am not getting the latest OTA update to the July security patch?
[Samsung Galaxy S8+ Guides, News, & Discussion] Mr. Orange 645:
I'm not for sure. Are you sure you flashed the stock ATT firmware and your device was originally an ATT device?
[Samsung Galaxy S8+ Guides, News, & Discussion] :
Yes that is correct. Someone mentioned something on another thread that ATT might need to reprovision my SIM card. Does that sound correct? I am talking to ATT right now.

UPDATE: ATT could not resolve this issue either. I am not sure if I have any options left. I downgraded to QC9 which is the official ATT firmware available on updato and it still won't find any OTA updates for me. Any suggestions?
[Samsung Galaxy S8+ Guides, News, & Discussion] Mr. Orange 645:
Well, you're beyond my expertise then. I suggest wait it out a day see if in a day or so it pushes the OTA. If not, then you will have to flash the newest firmware manually.

Did you flash Userdata when you flashed the ATT software?
[Samsung Galaxy S8+ Guides, News, & Discussion] :
I did flash the userdata. Super frustrating. I think it's AT&T blocking something but I can't for the life of me figure out what it is. A few others are facing this issue as well.
[Samsung Galaxy S8+ Guides, News, & Discussion] nimms:
It seems we only need HOME CSC of canadian firmware. Why didn't the OP just give the CSC file instead of full FW download... Anyway, am linking here in case someone has limited bandwidth and want to save time.

Canadian Home CSC
[Samsung Galaxy S8+ Guides, News, & Discussion] Mr. Orange 645:
Thank you for supplying the file. However, you're reply came across as complaining and unappreciative. The OP put a lot of hard work into writing up three guides for flashing the phone, making sure every step was correct, and going through and collecting all the files needed. He made it as pain free as he possibly could, yet, you still found a reason to complain. Nice one.
[Samsung Galaxy S8+ Guides, News, & Discussion] tserv95:
Can someone answer my question, do I need to flash the firmware first before I put in the sim card from another carrier? I'm on AT&T and I got the unlock code I just need to know if I should put the new sim in first from T-Mobile or if I should wait..
[Samsung Galaxy S8+ Guides, News, & Discussion] Mike15678:
First, replace your SIM card with the new one and enter the unlock code. Then, follow the "Carrier Switching" section of the guide, if your CSC code doesn't get set to "TMB" (You can check in Recovery Mode). Finally, follow the "Flashing Standard Firmware" or "Flashing Unlocked Firmware" section. Keep in mind that all data will be wiped from your phone, so it's advised you make a backup of your data. Enjoy!
[Samsung Galaxy S8+ Guides, News, & Discussion] nimms:
Chill man.. It was more of a query.. he went through lot of guides and did the procedure a few times to make sure all works.. Just wanted to check if i missed a point where i was supposed to flash full canadian firmware.
[Samsung Galaxy S8+ Guides, News, & Discussion] kanchyhemboy:
Hi, now that we will have root via adb, is it possible in any way to enable volte using adb? Any commands to do so?

How much ever we switch, here in India we can't get volte to work.....this would be really helpful
[Samsung Galaxy S8+ Guides, News, & Discussion] danglife:
Thanks OP. I am trying to flash unlocked firmware XAA on my sim unlocked verizon S8+ currently on VZW/VZW/VZW.

What is the difference between flashing unlocked firmware after following 1)~36) of your "Carrier Switching" guide and just going straight with your "Flashing Unlocked Firmware" guide?

I was confused since your "Carrier Switching" guide also mentions flashing of unlocked firmware at the last step 36) as below.

>> 36) Type in "adb reboot bootloader" and flash your desired firmware by following the "Flashing Standard Firmware" section of this guide or by following the "Flashing Unlocked Firmware" section of this guide.
[Samsung Galaxy S8+ Guides, News, & Discussion] willstay:
Thanks for this thread. It took me 3 runs to switch from ATT to XAA and install unlocked firmware. Both times silly mistakes. In the first run I forgot to type '>' in shell command and csc stayed in XAC. In the second run I copy pasted shell command, forgot to change XXX and ended up with XXX as csc. If you are really worried if csc change did take place, you can repeat the step where you dial in numeric sequence that pops up an app which lets you select csc, the selected csc should be at the top. I realized this because in my final try, XXX was displayed as device csc.

---------- Post added at 08:31 PM ---------- Previous post was at 08:15 PM ----------

Let me try to answer to you. The Carrier Switching guide only changes CSC of your phone. You will be able to change from VZW to XAA. During this process you will flash different types of firmware from Canadian, Factory Binary to be able to change CSC value. So by the time you have finished Carrier Switching guide, you are in chosen CSC and in Factory Binary firmware - something Samsung uses while they are testing phone. You then have to follow one of the regular firmware flashing guide. Step number #36 reboots phone into download mode and next you go.
[Samsung Galaxy S8+ Guides, News, & Discussion] mitrjoshi:
1. i bought att unlocked s8+, i want volte. so which procedure i should follow?

2. what is diff.b\w unlock firmware & standard firmware?
[Samsung Galaxy S8+ Guides, News, & Discussion] mitrjoshi:
can i flash this on my att s8+ to run volte??

---------- Post added at 10:46 AM ---------- Previous post was at 10:44 AM ----------

can i flash this csc to run volte on my att s8+
[Samsung Galaxy S8+ Guides, News, & Discussion] Zevin055:
So I followed another thread and my ATT s8+ was not unlocked and in the IME I selected TMB then install. Then installed tmobile firmware.

When I realized that phone needed unlocked I tried reverting back to ATT. Tried flashing ATT firmware and it still boots to tmobile logo. I tried going back into IME settings to select ATT but in the binary I keep getting

the process com.android.phone has stopped. Please help
[Samsung Galaxy S8+ Guides, News, & Discussion] nimms:
it doesn't have INS csc which is needed for VoLTE in india.
[Samsung Galaxy S8+ Guides, News, & Discussion] jim262:
I bought a T-Mobile device and flashed unlocked firmware AQDC-XAA. I can now successfully run different carrier sims and have also received updates. Currently running AQG2-XAA on a deviced purchased at T-Mobile. I was told by the employees the phone was locked to T-Mobile sims only and I could request the device after 40 days and the device was paid in full. I have only had my phone a couple weeks, but I thought I would try flashing the unlocked software to eliminate the bloat from T-Mobile. Then I tried different sims, it changed no problem. I then received OTA's for new software.
[Samsung Galaxy S8+ Guides, News, & Discussion] mitrjoshi:
flashed Canadian XAC

i flashwd canadian xac :P and it works perfect
[Samsung Galaxy S8+ Guides, News, & Discussion] nimms:
Jio Volte working or ATT VoLTE?
[Samsung Galaxy S8+ Guides, News, & Discussion] kanchyhemboy:
Are u in India? Is Jio volte working for u with Canadian xac?
[Samsung Galaxy S8+ Guides, News, & Discussion] mitrjoshi:
yes

yes..... which phone u have moden no.?
[Samsung Galaxy S8+ Guides, News, & Discussion] nimms:
So your phone is ATT s8+. Did you do any carrier switching? or simply flashed canadian HOME CSC and got Jio VoLTE? (Calls via native dialer). I gave you my number via PM. Pls call if possible.
[Samsung Galaxy S8+ Guides, News, & Discussion] mitrjoshi:
1

i just flashed directly sm-955W rom. but we can use only jio dialer not native dialer... in all phones not only in our phone
[Samsung Galaxy S8+ Guides, News, & Discussion] nimms:
Huh

That's your level of understanding...

That's like Voip calling... though via RCS. You won't get calls on WiFi. That's not VoLTE. You gave a false hope.

Oh XDA.
[Samsung Galaxy S8+ Guides, News, & Discussion] eric6268:
Can't change carrier

I have an unlocked S8+. I already tried many times, just can't change CSC code from XAA to SPR.

I noticed you changed the CSC on a branded phone. Is this the reason?
[Samsung Galaxy S8+ Guides, News, & Discussion] Mike15678:
Hold the power button, the Bixby button, and the Volume Up button while your phone is off to enter Recovery Mode. If you look on the log that is on the bottom, you should see your active CSC code. Please note that changing your CSC code does not affect the one that is displayed in Download Mode, as that one is hard-wired onto your phone.
[Samsung Galaxy S8+ Guides, News, & Discussion] eric6268:
Thanks for your reply. You are right. I saw that log with message - Applied CSC: SPR. I was keeping look at the carrier: XAA in the bootloader mode.

I flashed most recent GL firmware from Sprint, now I have Sprint logo showed when I restart my phone. Most importantly is, the Call Plus works. I'm so happy, as I was from Verizon and always be able to make a call & using the internet at same time.

By the way, I have an option to gift you 1 month ad free subscription. I will do it, after I finish setup the whole phone.
[Samsung Galaxy S8+ Guides, News, & Discussion] Mike15678:
I'm glad I was able to help you. Thank you for your donation. I truly appreciate it.
[Samsung Galaxy S8+ Guides, News, & Discussion] z06mike:
I have a Verizon S8+ and just switched to T-Mobile. Is it better to just flash the unlocked firmware or do the carrier switching? What works better? Any advantages/disadvantages to doing one over the other?
[Samsung Galaxy S8+ Guides, News, & Discussion] Mike15678:
If you want unlocked firmware, just follow the "Flashing Unlocked Firmware" section. If you want to switch carriers and get its firmware, follow the "Carrier Switching" section. Then, follow the "Flashing Standard Firmware" section.

Your phone can't be locked by your carrier, if you intend to use a SIM card from another carrier.

I should really add this to the guide (I just made this):

Unlocked Firmware

Pros:

No Carrier Bloatware

Easy SIM card switching between carriers (Plug 'n Play)

Cons:

No carrier specific features, such as Wi-Fi Calling

Updates come directly from Samsung; tend to roll out more slowly

Carrier Firmware

Pros:

Carrier specific features

Updates from your carrier; usually faster than Samsung

Cons:

Bloatware
[Samsung Galaxy S8+ Guides, News, & Discussion] roc342:
Im on sprint, And all I want is the Unlocked Firmware without any sprint bloat. Do I need to Change my CSC from SPR to XAA first. Or Can I just Flash the unlocked firmware? If i leave the CSC will it download some of the bloat via OTA. Like the stock sprint firmware? Aplogies I know the answer is here but Having trouble finding it.
[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] mitrjoshi:
:P

i didnt gave u a false hope.

try yourself something.

i just told what i done with my phone nothing else.

it shows ur lever of understanding
[Samsung Galaxy S8+ Guides, News, & Discussion] dinnjinn92:
Verizon to At&t

Alright guys,

i'm a little lost in this process. So if my phone is Verizon and is running G955USQU1AQC9, how do I make this work and which firmware downloads do I need to get rid of the Verizon startup screen and replace it with the At&t one? I've been able to get into the binary, but when I put in the code after the number pad pops up, it does nothing at all.

Any help would be appreciated before I call it quits and sell it in order to just buy an At&t model :silly:
[Samsung Galaxy S8+ Guides, News, & Discussion] William1971:
Since there wasnt a Metro PCS firmware for the s8+ I used T Mobile and set CSC to TMK. everything works on my originally ATT phone that I had unlocked. I get WIFI calling VOLTE and my LTE icon shows LTE+ near the new tower. Thank you so much for all you're work. I want you to know its greatly appreciated.

In your guide you should fix the line where you type for ADB to include ./adb for the commands. Otherwise they wont load. other then that its awesome.
[Samsung Galaxy S8+ Guides, News, & Discussion] Mike15678:
I should mention that users should use command prompt, instead of Powershell. In Powershell, you have to put a "./" before the command you want to execute.
[Samsung Galaxy S8+ Guides, News, & Discussion] Mike15678:
Sorry about the extremely late response, but you can just flash the unlocked firmware by following the appropriate section of the guide. Changing your CSC to "XAA" would allow your phone to accept any supported U.S. SIM card and automatically change the CSC to that carrier. In your case, you don't have to do this.

Once you have unlocked firmware, you receive OTA updates directly from Samsung and get no bloatware from your carrier.
[Samsung Galaxy S8+ Guides, News, & Discussion] Mike15678:
I'm not sure of any other ways of unlocking your phone besides through your carrier or a third party. Unlocking your phone is beyond the scope of this guide, however I suggest you try out http://updato.com/unlock if in need of a third party unlocking service.
[Samsung Galaxy S8+ Guides, News, & Discussion] Mike15678:
Ok, so you can download AT&T firmware from here: http://updato.com/firmware-archive-select-model?record=EF1356CA26EE11E7963AFA163EE8F90B. For the "Carrier Switching" section, make sure you're typing in this code into the "IME" number pad: "*#243203855#".
[Samsung Galaxy S8+ Guides, News, & Discussion] William1971:
the right click menu in win 10 only gives the option for power point. I am sure a command prompt line can be added to the context menu. Just easier to do the ./ to start the command.

Again thank you for all your work.
[Samsung Galaxy S8+ Guides, News, & Discussion] mitrjoshi:
i need canadian Home CSC.

I need canadian CSC, by mistake i deleted canadian FW folder... please provide me only canadian HOME CSC
[Samsung Galaxy S8+ Guides, News, & Discussion] mitrjoshi:
about VOLTE

I download again, forgot abt it.

-------------------------------------------------------------------------------------------------

Anyone know about this?

i have USA AT&T s8+ (unlocked) , no volte in settings, I am Indian, In india $g network supports only VOLTE.

i done carrier switch & then after flashed american http://updato.com/firmware-archive-select-model?record=01B5D91D8DDB11E7963AFA163EE8F90B

still i cant get VOLTE

Help Please
[Samsung Galaxy S8+ Guides, News, & Discussion] beauoare:
So to speak. I paid some guy on eBay to sim unlock my phone. So now if I flashed the attached firmware. Will that affect my sim unlock that I paid for?
[Samsung Galaxy S8+ Guides, News, & Discussion] dbpaddler:
Nope.
[Samsung Galaxy S8+ Guides, News, & Discussion] mborg1:
on the req section it states that it must be done, now i noticed that you will need to make changes in the Odin3.ini now im going to flash my S8+ with the unlocked firmware. Do i need to change the "UMS/PATCH". Change the value of "0" to "1" so it becomes "UMS/PATCH=1" in the Odim3.ini for the PrinceComsy cuz ill be using Odin Prince vs the regular Odin.
[Samsung Galaxy S8+ Guides, News, & Discussion] tootihamza:
It worked perfectly, flashed from Sprint software to an unlocked firmware, it is so much better, thank you very much, you were so thorough in your guide and made yourself so clear for us to follow it.

I posted your guide here, hope you don't mind, I'm sure it would help them like it helped me.

https://xdaforums.com/sprint-galaxy-s8/how-to/guide-flashing-g950u-g955u-t3669666
[Samsung Galaxy S8+ Guides, News, & Discussion] Dr. Claw:
I will be doing this on my Note 8 (XAC model to XAA N950U1 model)

to use US Samsung Pay, will I need to carrier switch, or will only switching to 950U1 firmware and use US carrier SIM (in my case VZW) be enough?
[Samsung Galaxy S8+ Guides, News, & Discussion] ketchup0527:
Canadian?

Sorry for the dumb question...If I'm doing a carrier switch from Verizon to Sprint (USA), do I still need to flash the Canadian rom?

Thanks.
[Samsung Galaxy S8+ Guides, News, & Discussion] BlueFox721:
Has anyone with unlocked variant successfully flashed userdata file in UMS and it successfully give you carrier functions?
[Samsung Galaxy S8+ Guides, News, & Discussion] Choreboy:
I followed the instructions to change carrier and it worked like a charm. There were some hairy moments there when the "phone" process was crashing but it all worked out.

I tried 2 other things before this thread and (obviously) they didn't work, so thank you very much for the write-up.
[Samsung Galaxy S8+ Guides, News, & Discussion] lilila:
What is so special about the CSC of Canadian firmware?

---------- Post added at 09:23 PM ---------- Previous post was at 09:22 PM ----------

I tried that with xfinity mobile userdata file, and everything works.
[Samsung Galaxy S8+ Guides, News, & Discussion] BlueFox721:
The Canadian file let's u change the csc code of the phone to allow for changing from one carrier to the next...on branded devices...At least for the S8+...a few are trying to get it working for the Note 8 by following the s8+ guide
[Samsung Galaxy S8+ Guides, News, & Discussion] darkgiant:
I downloaded the firmware from Updato, but it doesn't include any "USERDATA" so I can input it to Odin (I have an unlocked S8+ that I want to flash to T-Mobile). Can someone help me figure out what this is the case? Or do I download the file from a different location? The download speeds from Updato are absolutely atrocious, even on Gigabit fiber connection, it takes 5+ hours to download a 2GB file...
[Samsung Galaxy S8+ Guides, News, & Discussion] Mike15678:
Yeah, I've started to notice that Updato has gotten a lot slower. I recommend you use SamFirm to redownload your firmware, as it's probably corrupted. Good luck!

P.S. SamFirm downloads directly from Samsung's servers.