yashsingh1/xdaforums huggingface dataset:
[Samsung Galaxy S8+ Guides, News, & Discussion] Qiuniu:
Flashing Issue

I'm trying to return back to TMB/TMB/TMB but whenever I try to flash something, the log just gives me <OSM> All threads completed. (succeed 0 / failed 1) directly after <ID:0/003> SetupConnection... At first, I flashed the Canadian SM-G955W firmware, then I flashed the SM-G955U1 firmware. I've tried different versions of Odin and Comsy's Odin. I've tried redownloading firmwares and attempting to use different firmwares. There was one time today were I got past this point, directly after reinstalling Samsung USB drivers, only to get a FAIL! (DeviceInfo) error after the initialization step. Then the original problem reoccurred, only to remain since. My USB debugging mode is on. I've factory reset and wiped the cache of my phone. I don't have any other cables to try. I've restarted my computer. I've taken and put back in my sim card. Oh yeah, the same thing happens when I try to flash the factory binary. I am on the latest version of the SM-G955U1 firmware. I haven't touched any of the Odin options. I really need some help, I'm kind of lost. Thanks. Sorry if this is a noob problem.
[Samsung Galaxy S8+ Guides, News, & Discussion] nimms:
Try samsung smartswitch once.
[Samsung Galaxy S8+ Guides, News, & Discussion] Qiuniu:
Do you mean just install and open, or do I need to reinstall the firmware through smart switch?
[Samsung Galaxy S8+ Guides, News, & Discussion] nimms:
install firmware with it.
[Samsung Galaxy S8+ Guides, News, & Discussion] Qiuniu:
I tried to update/reinstall the firmware and do an emergency software recovery. Everything gets downloaded fine, but when the program attempts to actually install the firmware, the progress bar stays stuck at 0. I let it sit like that for more than an hour. I think the problem is the same as the Odin problem. There probably something wrong with my phone that won't let me install any new firmware, regardless of the method. Would Samsung replace my phone if I tell them what's wrong? Does installing other official firmwares disqualify this possibility?
[Samsung Galaxy S8+ Guides, News, & Discussion] nimms:
You can try a different cable/PC before going to samsung.
[Samsung Galaxy S8+ Guides, News, & Discussion] Qiuniu:
I finally got back to TMB/TMB/TMB. I had to test combinations of unmodded and modded odins and yours and the OP's HOME_CSC files. Thanks for your help, nimms.
[Samsung Galaxy S8+ Guides, News, & Discussion] burrzoo:
I've read every post here. Am I understanding this correctly in that all US S8+'s have the same Hardware (which includes all of the 4G LTE bands and frequencies used by different carriers)? All we then have to do is to go through this "Carrier Switch" process to obtain the Original Carrier bloatware files or load the Non-Carrier bloatware files (the G955U1 firmware) and the phones will fully work on a specific desired carrier when using that Carrier's SIM card?

I mainly want to clarify this because I have an AT&T S8+ and want to give it to a friend who is on the Verizon Network. I think the Non-Bloatware files are best even though the OTA updates will probably come later than any carrier's updates. We would still get OTA updates with the G955U1 firmware, right?

Thanks in advance for everyone's help! I really appreciate it!
[Samsung Galaxy S8+ Guides, News, & Discussion] burrzoo:
Can anyone help? Seems thread might be dead. :(

Are all of these old firmware versions still valid now (Sept. 2017) when trying to switch carriers or should I get the latest versions of these files? I'm going to try another PC today but I get nothing but failures. Tried 3 different cables, 3 different ports, updated drivers. Running modded Odin as an Admin. Other threads said to have USB Debugging switched on in the phone. Another thread also said to Untick Auto Reboot and F. Reset Time under the Odin Options tab. I've tried the G955U1 unlocked path and also the Carrier specific path (AT&T stock currently on phone, OS 7.0 , can't get through step one for Carrier switch/AP, want to eventually have a Verizon phone, always stuck for over an hour on SetupConnection or Odin is stuck and get Windows error to close).
[Samsung Galaxy S8+ Guides, News, & Discussion] hchen42:
Thanks OP. I have a Verizon branded S8+, and I just flashed the unlocked version which I downloaded from updato.com. It works well on Cricket Wireless. Hopefully, not doing what's in post #3 would still allow me to obtain new firmware in the future.
[Samsung Galaxy S8+ Guides, News, & Discussion] profsegp:
Hello everyone! I bought a Tracfone S8 (SM-G950U) supposedly unlocked. Swappa shows it as clear for activation. I've been trying to use it on MetroPCS and for the past week, I tried everything possible to at least get a new firmware on the phone. The LTE and SMS work fine, but when I try to make a phone call I get an error in the top left corner saying "No SIM or SIM error." Also, I know the SIM is ok because Metro gave me a new SIM and I get the same error. I downloaded more than 10 different firmwares including the SAMPWND and the original TFN firmware. None of the firmware is flashable to this phone. Even the original TFN firmware. I tried the modded odin and the regular 3.12.7. I enabled USB debugging mode. Nothing works. At this point I'm really frustrated. Anyone else experienced the same issue? I would appreciate any help! Thank you
[Samsung Galaxy S8+ Guides, News, & Discussion] erick2908:
Im using TMB S8+and its not already unlocked , Its impossible to use my local sim when i do this method.? Im frm philippines and the local carrier here is GLB ( Globe ) thanks for the response
[Samsung Galaxy S8+ Guides, News, & Discussion] MiMtnBiker:
After flashing the unlocked firmware, do you also have perform the carrier switch? I could not get the APN settings to stick with xfinity SIM. The listed APNs would constantly cycle in and out. They would be listed one moment and would disappear the next. Even manually entering the APN didn't work. However, I had no issues at all with my Tracfone SIM.
[Samsung Galaxy S8+ Guides, News, & Discussion] BADGERLOCK:
Forgive me if this question has been asked before. I've flashed my VZW S8+ to ATT firmware and everything is working well except OTA. When I did the 955U1 conversion (XAA/XAA/VZW) updates worked great. I use my phone for calls quite often and really would like to have VoLTE/WIFI calling working and also was hoping to get updates working too.

The phone reports ATT/ATT/VZW now and all features I'm testing work great on the phone, just can't get it to take OTA
[Samsung Galaxy S8+ Guides, News, & Discussion] elliwigy:
u cant
[Samsung Galaxy S8+ Guides, News, & Discussion] 012345678:
you can download csc manager or root essentials and edit your csc options manually. then you will be able to get ota again.

or try this VOLTEfix from Verizon thread. if you follow the steps: Reset Phone--- then execute Install1.bat execute Install2.bat and this should help you to get the csc full back to ota

https://www.androidfilehost.com/?fid=817550096634782202

Tread Verizon :

https://xdaforums.com/verizon-galaxy-s8+/development/rom-s8-t3627537
[Samsung Galaxy S8+ Guides, News, & Discussion] Thystle:
My S8+ is Sprint too. I tried to have the customer service to unlock my device. But because I use the account less than 3 months, they won't let it.

I just try to use another sim card abroad of US on this device.

So what should I do? Follow the 25 steps? The CSC Value of the new sim card is not in the list.

---------- Post added at 06:20 PM ---------- Previous post was at 05:55 PM ----------

My S8+ is Sprint. I tried to have the customer service to unlock my device. But because I use the account less than 3 months, they won't let it.

I just try to use another sim card abroad of US on this device.

So what should I do? Follow the 25 steps? The CSC Value of the new sim card is not in the list.
[Samsung Galaxy S8+ Guides, News, & Discussion] JeffATL:
Isn't Verizon s8/s8+ unlocked ?
[Samsung Galaxy S8+ Guides, News, & Discussion] elliwigy:
you cant use another sim card on sprint until you unlock it.. i actually work for Sprint lol so following these steps will not help you at all as it does not sim unlock the phone.. u should be able to unlock however with say a z3x box.. theyve had the capability since s8/s8+ was released since ur not eligible yet with Sprint

---------- Post added at 04:40 PM ---------- Previous post was at 04:37 PM ----------

yes.. lol.. i said need to be unlocked through carrier unless with sprint.. since vzw is already unlocked by the carrier then obviously that statement doesnt apply.. besides verizon, i know sprint can be unlocked with z3x
[Samsung Galaxy S8+ Guides, News, & Discussion] JeffATL:
Going from Verizon to AT&T, I am looking for latest stock. I know I also posted this in this thread but havent gotten response yet so hoping some knowledgeable people here can point me right...

https://xdaforums.com/att-galaxy-s8+/how-to/g955u-att-five-odin-files-stock-t3650637

If I follow steps above from post 3:

Can I flash the files from above thread instead in step 24?

Also, the XXX in step 21 is the carrier you are flashing FROM, not TO , right?
[Samsung Galaxy S8+ Guides, News, & Discussion] imranXshimul:
Does it tripped knox?
[Samsung Galaxy S8+ Guides, News, & Discussion] Sonic999:
Sorry guys, just to make sure I don't f_ck things up with my new phone... mine's unlocked, Verizon Wireless version, SM-G955U, Last security revision dated Apr 1st 2017, Nougat 7.0, base band number G955USQU1AQD9, software version SAOMC_SM-955U_OYN_VZW_0167, 98891a41454f454f57, VZW/VZW/VZW. It's working fine with my carrier from Argentina. Will this firmware version posted on the first board message maintain the same band settings and all? Or will i have to start testing with the info mentioned in the second post? If not, what file should I flash? I won't be able to use Wifi-Calling at all since I would have needed to get the phone from my carrier, at almost 3 times the money I paid for the phone in the US. Thanks in advance.
[Samsung Galaxy S8+ Guides, News, & Discussion] totones04:
Knox tripped with this??
[Samsung Galaxy S8+ Guides, News, & Discussion] JeffATL:
DId you ever get OTA to work ? I'm on ATT AQC9 /, phone was originally Verizon - System Updates say it is up to date
[Samsung Galaxy S8+ Guides, News, & Discussion] infrasonic13:
HI guys,

I flashed my 955U with 955U1 firmware and now I cant go back to the Verizon model. The reason is the OTA updates that I've heard are 2-3 months slower for the unlocked phones.

When I flashed back the latest VZW 955U software I don't get all the Verizon stuff also OTA updates stopped working completely and I get XAA/XAA/VZW.

Is there any way to go back to the Verizon?
[Samsung Galaxy S8+ Guides, News, & Discussion] fourpsk:
Can I do with the Japanese model?(SM-G955J/SC-03J/SCV35)

I tried but failed with "Secure check fail".

I would like to change to DCM → Other CSC.
[Samsung Galaxy S8+ Guides, News, & Discussion] Jabbacks:
Ok, I am a little confused with the firmwares. I check the specs for my phone (G955U and according to the specs it says it's US unlocked version. But actually it is aT-Mobile and not the model G955T (for T-Mobile) according to GSM Arena Phone Specs.

It's on Android 7

Build AQJA,

Service Provider SW ver. 98889831*******//TMB,

Security Patch Level Oct. 1, 2017

Is my phone eligible for this mod?

Thanks!
[Samsung Galaxy S8+ Guides, News, & Discussion] jt1998:
hope you're around as your post is old. how did you get TMB/TMB/TMB. I understand the 3rd one is hardcoded to the device. I have a VZW device, i carrier switched to TMB and TMB firmware flashed. But my info says TMB/XAA/VZW. I'm trying to get to TMB/TMB/VZW if possible but it's not working out for me. Do you have any suggestions or tips?
[Samsung Galaxy S8+ Guides, News, & Discussion] xdanilva:
You could try flashing tmobile firmware maybe...
[Samsung Galaxy S8+ Guides, News, & Discussion] jt1998:
that's the only one I keep flashing after carrier switching. ended up TMB/XAA/VZW the 1st time and XAA/XAA/VZA when I changed the csc to metropcs the 2nd time but still flashed the tmobile firmware.
[Samsung Galaxy S8+ Guides, News, & Discussion] Semal259:
Thank you for this post.

I wanted to ask that if I write GCF on step 21, will it be carrier unlocked. I mean, I just came from US to India and I need to get a local sim working as soon as possible.

Thanks in advance.
[Samsung Galaxy S8+ Guides, News, & Discussion] JeffATL:
On XAA, can't register to Sprint (autopreconfig disabled which takes me off XAA) any suggestions ?
[Samsung Galaxy S8+ Guides, News, & Discussion] mytuhuyennninh:
i see his change csc from USA to XXA > XXA ( VIETNAM)

https://www.youtube.com/watch?v=UJ2WD4EhqWE

The list you provided does not have XXV, why they do it, it seems they flash an update_csc.zip by passing "adb sideload update_csc.zip"

Where did they get it ... I'm not a professional, so I need an expert to help
[Samsung Galaxy S8+ Guides, News, & Discussion] elliwigy:
if u r rooted you use shortcut master and preconfig apk to install tmb network customisations.. then use a root explorer and go into efs partition and change mps_code.dat to TMB and thatll take care of the first 2.. if u want the last to say TMB you can try having someone with tmb send you their param partition and dd it.. i kno when i wiped my param last 3 would say no id then flash vzw back it was back to vzw.. so no, the last 3 are not hardcoded

---------- Post added at 12:58 PM ---------- Previous post was at 12:56 PM ----------

no.. this method doesnt unlock anything.. u needa find another way or call your carrier

---------- Post added at 01:08 PM ---------- Previous post was at 12:58 PM ----------

i mean he shows u how to do it lol.. that app hegoes into from dialer pad is the preconfig.apk i was talkin about and the firm2are he was on is a combo firm like we use for root except thats also the combo firm system and he just flashed a csc in recovery.. he just changed the name lol..

he literally didnt make anythijg besides the video and nothing new with the csc..

if ur rooted u dont even need to do all that except maybe flash the csc lol you can access preconfig to switch to xxa without the hassle
[Samsung Galaxy S8+ Guides, News, & Discussion] Mxnchx:
Sprint

Hi, I got an Sprint S8+ unlocked outside USA, i really don't like Sprint blootware and I am thinking to switch to a clean firmware but I am not sure if I am going to loss the unlock to use the phone with any carrier. Would you please advice??

Thanks
[Samsung Galaxy S8+ Guides, News, & Discussion] denpad2010:
i have a veriizon s8 plus ,i just want the international version without bloatware so should i just install the G955U1 and ill be good????
[Samsung Galaxy S8+ Guides, News, & Discussion] bana1988:
I flashed the firmware and am getting reboot loop. Anyone else with this issue? (I have a tmobile s8+)
[Samsung Galaxy S8+ Guides, News, & Discussion] johnlgalt:
Hi, all,

Got a question - Have a brand new VZW S8+ (SMG955UZW on the box) - never activated, purchased from Best Buy for VZW, with VZW SIM in the phone.

I want to give it to my sister to replace her S6 Edge+ - but she is on AT&T. I tried simply inserting her SIM into the phone and booting, after performing a FDR, and it still says that the SIM is not a VZW SIM.

I've read a lot of different posts all over the interwebs, but this one is one that more than a few (including a Reddit or 3) pointed to, and having used many instructions from XDA over the years (and contributed my own observations and having helped more than a few users in other device forums here) I feel confident that I can easily do this - I'm just trying to make a decision as to which route to pursue for her.

Having read through every page in this thread, I just want to make sure before I begin that I have this correct.

If I were to go the U1 route, she would then be able to use the device on AT&T without all the AT&T bells and whistles (if any, IMO) and would have to wait for Samsung to put out updates to the OS.

However, if I go through the entire Carrier switch route, then she would have all the bells and whistles (unless there are things that do not work on AT&T), but she would also get her updates from AT&T and not from Samsung.

(And anyone have any idea what AT&T specifics are included i their firmware for devices on their networks? Not counting Gear VR, which I read earlier in the thread is disabled server-side by Samsung)

And regardless of which route I pick, I can always flash to the other choice at will (and even back to the original VZW, if need be) - all without tripping Knox on this brand spanking new S8+.

Is that the gist of all this?

Sorry for asking - all my devices have been on VZW, until my current - Project Fi-based Taimen. And all (but my BIONIC, and my current Taimen, since I have no need to bootloader unlock it) were bootloader unlocked so I could easily swap firmware as I wanted to. And as I've never actually use a Samsung device for very long (except an S3 that was already unlocked / ROMd) I have 0 clue about all this Odin-related stuff, but I'm rather well versed in a) following directions, and b) researching.
[Samsung Galaxy S8+ Guides, News, & Discussion] G S W:
Hopefully you've already figured your issue out, as Idon't have any useful info other than you should repost this as a new thread to get more people to see, I really doubt it got much traction from this thread.
[Samsung Galaxy S8+ Guides, News, & Discussion] johnlgalt:
Thanks for at least taking the time to respond :) I am rather disappointed in the lack of a response....

The issue was simply a call for a clarification.

I'll just go it on my own, as I usually do - the information is here, and if she wants one over the other I can always change the phone for her.
[Samsung Galaxy S8+ Guides, News, & Discussion] jaison thomas:
Did You fixed it? I am also having a tmobile s8+ unlocked recently. I am having network issues when using with lyca mobile. Just want to try with unlocked firmware if it has any benefits. Anyone has any insight in this.

Any suggestions is appreciated.
[Samsung Galaxy S8+ Guides, News, & Discussion] johnlgalt:
I downloaded the U1 to flash the phone to Agnostic. Will that work for you, or do you need that particular one?

And you might look at these as well: http://samsung-updates.com/device/?id=SM-G955W

---------- Post added at 09:09 PM ---------- Previous post was at 08:20 PM ----------

SO, talked with my sister - she said she doesn't use any of the AT&T specific stuff.

Having grabbed patched Odin and the U1 file, I decided to try flashing it tonight. Grabbed the latest Sammy USB drivers from their website (searched S8+ specifically to make sure - driver date a couple of weeks ago), installed, test the U1 firmware and Odin_modified archives, all fine, extracted both to separate folders, all fine.

Ran Odin - get a pop up with Odin.ini and some Asian characters after (assuming Korean). Press OK, Odin flashes on and goes off.

Tried a couple of times - no go - then moved everything into a folder off the root of the HD, no spaces - no go. Then got the brilliant idea that I should try the compatibility troubleshooter - boom! Odin runs. Told troubleshooter to save settings, then tried to run it again and no go. Manually tried to set the compatibility to Win8, no go. Ran troubleshooter again and it loads. F$%^$@% weird....

Anyhoo, after that fiasco, it ran through like a charm the first time through - using one of these cables (bought 3 when I bought my Taimen - much sturdier than the stock cables that come with phones - link is to product only, no affiliate code or anything hokey like that) and this USB 3 hub that I use with 1 of my 2 USB 3 ports on my computer (because the USB 2 connections are all hokey - refuse to accept anything except what I plug into my card reader and my KB - long story).

Thanks for this thread!
[Samsung Galaxy S8+ Guides, News, & Discussion] Mr. Orange 645:
Just FYI, it appears with the new Blv3 firmwares, the device will only accept official firmware. Meaning, no more flashing U1 firmware on the carrier models, or vice versa. No more flashing U or U1 firmware to the Canadian W models. Flashing between carrier firmwares is fine as long as it's on a carrier branded device (running TMB on a VZW device, etc). But running 950U firmware on a 950U1 will result in a brick, that is this far unrecoverable.

If your currently are running U1 firmware on a U device, vice versa, or running W firmware on a U or U1 device, or vice versa, you need to flash back to the firmware version that shipped with your device BEFORE you accept any OTAs that take you up to Blv3. Currently the S series is still on BlV2, but may go to Blv3 like the Note series just did.

This has been tested and confirmed.

Credit goes to [MENTION=4591212]me2151[/MENTION]*, [MENTION=7263822]FatalONEM8[/MENTION] for discovering this and warning people. I didn't find the issue or test, it just passing on the info to hopefully save some bricks.
[Samsung Galaxy S8+ Guides, News, & Discussion] johnlgalt:
Wait. My understanding in all this (reading every page) was that if you were in U1 your updates came directly from Samsung, which (I had assumed until this point) were simply updates to the U1 version, not carrier specific versions.

Am I wrong in thinking that, or has Samsung just basically stopped supplying the U1 as updates, so that hte phone will be offered one from whatever service provider they are currently on (meaning a non U1 firmware, which then proceeds to brick the phone is installed)?
[Samsung Galaxy S8+ Guides, News, & Discussion] Mr. Orange 645:
What my post means is that if you have. U1 device (unlocked purchased from Samsung), then you need to be on UNTIL firmware before it updates to Blv3. If you have a U device (purchased from a carrier), then it needs to be on carrier firmware before it updates to Blv3.
[Samsung Galaxy S8+ Guides, News, & Discussion] johnlgalt:
Yeah. I have a carrier device that I flashed to U1 firmware like 4 hours ago. the post before your first post....
[Samsung Galaxy S8+ Guides, News, & Discussion] Mr. Orange 645:
You're okay for now, as long as you don't update to Blv3. But before you do, even if by an OTA, you will need to ODIN back to carrier firmware.

---------- Post added at 11:25 PM ---------- Previous post was at 11:23 PM ----------

There is currently a group working on a fix for bricked devices, but for now consider it a hard brick. Don't chance it.
[Samsung Galaxy S8+ Guides, News, & Discussion] johnlgalt:
Good advice all around.

Since I am not the one in possession of the device, but my sister is, I'm grabbing the phone back from her to move it to AT&T carrier version instead.

She'll remember now, but in a couple of weeks / months she might forget. And while we all hope that the issue will no longer be one, there is a chance that it might still be a factor, so not taking a chance.

(If it was me, I'd stick to U1 though lol)
[Samsung Galaxy S8+ Guides, News, & Discussion] johnlgalt:
So, my sister has decide that this would be the better option as well, so she doesn't accidentally take an update that may brick her phone.

Question: As long as the version of the firmware matches, I can use any (especially latest) of the U / W firmware to go from U1 to AT&T specific on the phone, correct?

And that last statement means that once this 25 step process is completed, all I need to do is step 10, then 20-24, right? (not counting the steps to get into the bootloader, just the actual flashing steps...)
[Samsung Galaxy S8+ Guides, News, & Discussion] johnlgalt:
Where'd you get those at? I think this new S8 is better off being on a carrier version, but both updato and the site I linked to are offering dialup-esque speeds....
[Samsung Galaxy S8+ Guides, News, & Discussion] Minihulk82:
Trying to figure out where i went wrong. I downloaded the files and the odin that was put in the description. For the g955u1. I have used odin other times, so i know basically how it works also. Now, i did install the latest firmware on samsung switch when i got the phone this week. Don't know if that made a difference or not. Please help