yashsingh1/xdaforums huggingface dataset:
[Samsung Galaxy S8+ Guides, News, & Discussion] rerojigu@business-agent.i:
Hi all, I have a SM-G950W (Canadian) unlocked with a BMC CSC. I'd like to use a Jio sim card here in India. How do I do this? The 950W doesn't have any other country's CSC other than Canada. Can I flash firmware from the american snapdragon models (like the G950U?) Please help out a noob, thanks a ton :)
[Samsung Galaxy S8+ Guides, News, & Discussion] nainpo:
Bootloader 5 HELP !

How to make this work on Bootloader version 5 i.e after the One UI update ?

---------- Post added at 12:45 PM ---------- Previous post was at 12:31 PM ----------

Would it work if I only sideload using adb, already got pie or have to reflash ? I have the version G955U1UEU5DSC1 , If i need combination rom which one should be used.
[Samsung Galaxy S8+ Guides, News, & Discussion] itsme_4ucz:
Hi

I recently purchased this model of note 8 N950U1

it would be nice of you to share the links of the files which showing your snapshot.:highfive::good:

thanks & regards.:angel:
[Samsung Galaxy S8+ Guides, News, & Discussion] rajeshca911:
I just updated to latest firmware and went through previous posts. indeed VOLTE works in pie too.. thanks for the hardwork guys
[Samsung Galaxy S8+ Guides, News, & Discussion] shabeerNv:
where i can find the link for csc.zip file

hi, i couldn't find the link for csc.zip file your are asked to install in the last step. please help me with that
[Samsung Galaxy S8+ Guides, News, & Discussion] prayag00:
Which files should be flashed from AP,BP,CP & BL just for Android update? ( installed apps should not get removed just like OTA )

As i am already using volte, another question is that will I get OTA services revived ,if I flash CSC from US firmware without wiping anything (dirty flash)?

My idea is to flash CSC from Indian firmware after installing OTA of US firmware.
[Samsung Galaxy S8+ Guides, News, & Discussion] itsme_4ucz:
this one to be used for S8+ ?

https://drive.google.com/uc?id=1Y6TExVKxf9w72KsLsqoO0y5LYzBqct4K&export=download
[Samsung Galaxy S8+ Guides, News, & Discussion] nimms:
Yes.. the file name says g955u.
[Samsung Galaxy S8+ Guides, News, & Discussion] shabeerNv:
How to extract the sec_omc.zip from the indian firmware

---------- Post added at 03:39 PM ---------- Previous post was at 03:19 PM ----------

I too have the same note 8 device, but Everytime i try the steps from the original post it fails at the last step.

My friend can you please specify detailed step to get volte in the unlocked (sm-n950u1) device:confused::confused:
[Samsung Galaxy S8+ Guides, News, & Discussion] chetan180:
read first post
[Samsung Galaxy S8+ Guides, News, & Discussion] shabeerNv:
Sec_omc.zip file given in first post for note 8 shows "signature verification failed" in the last step.

So how can i extract the sec_omc from the latest n950f (indian) firmware:rolleyes::confused:
[Samsung Galaxy S8+ Guides, News, & Discussion] chetan180:
There is a YouTube link in 1st post check that. It works I had extracted when I had snapdragon variant. Now I m using note 8 exyn
[Samsung Galaxy S8+ Guides, News, & Discussion] Pamit_Enthu:
Please share the link again and also let me know how to update to latest android Pie

Please share the link again and also let me know how to update to latest android Pie as I'm using S8 AT&T unlocked and it won't allow any updates.
[Samsung Galaxy S8+ Guides, News, & Discussion] Pamit_Enthu:
Link doesn't work.Please help
[Samsung Galaxy S8+ Guides, News, & Discussion] prayag00:
Download the sec_omc extractor , it too contains steps for extracting the sec file.

Be cautious about the release dates and last four characters of the US firmware and indian frimware from which you are extracting the sec . The indian firmware should be younger than US firmware (indian firmware should have been released after US firmware ), but not more than one - two months. And the last four characters of indian firmware should be > than last four characters of US firmware.
[Samsung Galaxy S8+ Guides, News, & Discussion] itsme_4ucz:
Hi all after successfully doing now i am unable register the device to get ota updates,

it states processing failed. do anybody else also facing the same issue,

if yes found any solution please help me out too.

Thank-you,

Regards
[Samsung Galaxy S8+ Guides, News, & Discussion] nimms:
As the csc and ap numbers and processor don't match, you won't get OTAs. You'll need to manually update. You won't lose data (but backup anyway). Check last few pages..
[Samsung Galaxy S8+ Guides, News, & Discussion] itsme_4ucz:
searched but couldnt find it, please link me the post.

thankyou.:good:
[Samsung Galaxy S8+ Guides, News, & Discussion] nimms:
Flash the latest ap cp bl and "home csc" from pie for snapdragon and sideload the Indian csc again.

Your data should remain as is.

Back up to be safe.
[Samsung Galaxy S8+ Guides, News, & Discussion] _raksh1th_:
*worked*

This doesn't work for me ...

I have a unlocked ATT N950U ... Now currently on N950U1 (XAA) U5DSC1

Whenever i flash the combination firmware "AP" seperately my Note8 is stuck @ a black screen with its booting logo and serial number , and many random texts like Carrier : ATT , Cable : 1 etc ... doesn't go to binary mode . i can only move to Download mode from there , sometimes Recovery mode comes and i try the next step abd sideloading the csc file ... still after that same black screen ....

____

EDIT:I figured out factory reset after AP flash will solve the problem

If anyone is stuck in that screen Press and hold volume down and bixby ... it'll take u to recovery mode . factory reset from there
[Samsung Galaxy S8+ Guides, News, & Discussion] Rahil4321:
I have Oreo on s8 ATT unlocked in India, can someone please help installing pie with volte?
[Samsung Galaxy S8+ Guides, News, & Discussion] prayag00:
I am currently using volte on Galaxy s8 SM G950U1 carrier XAA , i am on DSC1 build and want to update to DSD5 and the real problem is i am not able to flash the firmware via patched odin, flashing DSD5 via odin endsup with the following log

(Succed 0 / failed 1) ..........

And sometimes gets stuck on initalization ..........

Please help...
[Samsung Galaxy S8+ Guides, News, & Discussion] prayag00:
Download latest pie firmware of your device (ATT S8) and latest pie firmware for indian s8 , extract sec_omc.zip from indian firmware using tool given on first page and then follow the steps from the beginning given at first page .
[Samsung Galaxy S8+ Guides, News, & Discussion] nimms:
If you are on USB 3.0.. try USB 2.0 or another cable or another system. If it's pure stock, you can even use unmodified odin.
[Samsung Galaxy S8+ Guides, News, & Discussion] prayag00:
I tried with all the ports and even with unmodified odin but it went futile , now the only option left is trying this on another system .

And yes ,I even tried with the re-partition option checked but nothing worked .
[Samsung Galaxy S8+ Guides, News, & Discussion] quakze:
Mine is SM-G955F, and I am on G955U1UEU5DSD5_G955U1OYM5DSD5_XAA firmware

Would someone share indian sec_omc.zip for v5 bootloader, Please !

I tried finding indian v5 bootloader firmware, found non :(
[Samsung Galaxy S8+ Guides, News, & Discussion] prayag00:
It need not be v5, extract csc from latest indian firmware and sideload it.

4DSBA will work as it worked for me...
[Samsung Galaxy S8+ Guides, News, & Discussion] quakze:
G955FOXM4DSE4 didn't work !

downloading G955FXXS5DSF1 will update the result !

Update: it also failed while adb sideloading.

My starting firmware was not stock T-mobile G955U, instead it was unlocked G955U1. Maybe that is the issue :confused:
[Samsung Galaxy S8+ Guides, News, & Discussion] quakze:
Will follow your guideline and update the result, congrats and thanks :good:
[Samsung Galaxy S8+ Guides, News, & Discussion] quakze:
Stock Firmware = G955USQU5DSD3_TMB

COMBINATION = COMBINATION_FA70_G955USQU5ARH8

sec_omc.zip = G955FXXS5DSF1_G955FOXM5DSF1_BTU

Same issue in side loading "Installation aborted"

Could someone giude me where I am doing wrong, Please support

Thanks
[Samsung Galaxy S8+ Guides, News, & Discussion] prayag00:
Please take care of the release dates of US firmaware and indian firmware, indian firmware should be released later than US one ,but not more than one month. Both firmwares should have very near release dates.

And if the situation persists

Try it on other PC or please post the installation log (try take a snap using other phone).
[Samsung Galaxy S8+ Guides, News, & Discussion] nimms:
https://xdaforums.com/showpost.php?p=79222319&postcount=368

This should help.
[Samsung Galaxy S8+ Guides, News, & Discussion] quakze:
[MENTION=9809281]prayag00[/MENTION] [MENTION=650462]nimms[/MENTION] and the thread users, Thanks for sharing and supporting.

After 4 days and night RnD, finally every thing working, including VoIP on JIO network.

Downloaded 30 - 40Gb of data and tested different combination and read the thread 3 -4 times.

Finally have done :D
[Samsung Galaxy S8+ Guides, News, & Discussion] nimms:
If you have any pointers for others.. please put them down here.
[Samsung Galaxy S8+ Guides, News, & Discussion] quakze:
What will happen if I do factory reset now,

will the CSC setting be lost and changed to other region or volte gets disabled ?
[Samsung Galaxy S8+ Guides, News, & Discussion] Mouli21:
Need help for pie. I tried many times but unsuccessful. Will this work on pie snapdragon??
[Samsung Galaxy S8+ Guides, News, & Discussion] prayag00:
Nothing will happen to volte , it will remain intact.

It will get removed only if you flash firmware (CSC) again.

---------- Post added at 04:52 PM ---------- Previous post was at 04:48 PM ----------

Volte works on pie firmware too. And i am on the latest pie firmware of Galaxy s8 (SM G950U1) with Jio volte. So please describe the point at which you are failing.
[Samsung Galaxy S8+ Guides, News, & Discussion] shaun100689:
Hi guys I happen to have a 950u1 on pie.....I couldn't get indian sim working on it....The sim is getting detected but can't get any signal.....I tired the method mentioned in1st post....Got everything right til step 18....But when reflashing the cSc in step 19....The installation aborts saying failed to verify the signature....Attaching screenshot.....Can anyone help...?
[Samsung Galaxy S8+ Guides, News, & Discussion] prayag00:
update your phone to latest pie firmware and get csc from latest indian firmware and then flash it

files are as follows :-

usa model firmware g950u1ues6dsg1

csc from g950fxxm5dsfb

And for all these use usb hub if you are using usb 3.0 port.
[Samsung Galaxy S8+ Guides, News, & Discussion] shaun100689:
Will this solve the signature failed problem as per my earlier post...?
[Samsung Galaxy S8+ Guides, News, & Discussion] prayag00:
I had the same annoying problem of signature verification failure, i dont precisely remeber the solution but it was near to selection of firmware files, and i would suggest you to extract the csc file yourself using omc extractor, rather than downloading it from internet and select firmware files such that their release dates are closer (within same month).

i would suggest you to download these firmware files from Sammobile and follow the procedure.

USA FIRMWARE : (5DSF3)

https://www.sammobile.com/samsung/galaxy-s8/firmware/SM-G950U1/XAA/download/G950U1UES5DSF3/278040/

INDIAN FIRMWARE : (4DSE4)

https://www.sammobile.com/samsung/galaxy-s8/firmware/SM-G950FD/INS/download/G950FXXU4DSE4/273257/
[Samsung Galaxy S8+ Guides, News, & Discussion] shaun100689:
alrite will try your method....can any 1 get me link to download OMC extract.....???
[Samsung Galaxy S8+ Guides, News, & Discussion] nimms:
It's attached to first post.
[Samsung Galaxy S8+ Guides, News, & Discussion] itsme_4ucz:
combination firmware file ?

which combination firmware file to used with this latest firmware

G955U1UES6DSG1/G955U1OYM6DSG1/G955U1UES6DSG1.

thankyou

regards
[Samsung Galaxy S8+ Guides, News, & Discussion] prayag00:
I recommend you to use this files only if you have successfully completed till step 16 atleast once , so if you are following the procedure for first time use BL5 files such as 5DSF3 and Indian firmware 4DSE4 with BL5 combination file which is given at first page.
[Samsung Galaxy S8+ Guides, News, & Discussion] bigshot00:
Samsung Galaxy S8+ model# SM-G955U (T-mobile)

Baseband: G955USQS6DSG4

Android: 9

CPU: Snapdragon

In above S8+ phone I can browse 4G internet without any problems via Jio SIM, but when I try to make a call, it fails (I instantly get "Call Ended" message).

Which Indian S8+ (Exynos) CSC firmware file should I apply to this T-mobile S8+ (Snapdragon) phone, so that I can also start making mobile phone calls via Jio SIM.

Also, will changing CSC to [INS] also enable VoLTE on this S8+ phone (Currently I don't see any VoLTE button on this phone).

Finally, I've also tried JioCall app so that I can make phone calls, but this JioCall app also closes itself immediately after opening!!

I have already downloaded ADB, Odin, and extractor - I want the latest files compatible with S8+ phone to be downloaded, so that I don't brick the phone!

Let me know. Thanks!
[Samsung Galaxy S8+ Guides, News, & Discussion] prayag00:
Search a combination file of BL ver 6 and follow the procedure from 1st page
[Samsung Galaxy S8+ Guides, News, & Discussion] bigshot00:
do you know where can I get BL version 6 combination file? I googled but couldn't find it!!
[Samsung Galaxy S8+ Guides, News, & Discussion] itsme_4ucz:
there are no BL6 Combination files till date, request links if any....:(

or else stick to BL5 files only.:highfive:

Thanks

Regards:highfive::good:
[Samsung Galaxy S8+ Guides, News, & Discussion] shaun100689:
Still no luck i tried the entire process twice.....

i used following files :

950U1 Firmware : G950U1OYM5DSF3

exraced INS CSC from FD Firmware (G950FOXM4DSDA)

for a change all 20 steps completed successfully this time with my S/W info. showing INS/INS/LRA....but still no network....while trying to search for network in settings it says "UNABLE TO CONNECT TRY AGAIN LATER.".....

am i missing anything...?
[Samsung Galaxy S8+ Guides, News, & Discussion] prayag00:
I think you made a mistake in downloading USA firmware, you should Select XAA instead of LRA.

And i hope your phone is carrier unlocked.
[Samsung Galaxy S8+ Guides, News, & Discussion] itsme_4ucz:
Hi all

unable to go through with my S8+ but i sailed through Note8. Both are US versions

i am getting DBT/DBT/XAA instead of INS/INS/XAA

Using G955U1UES5DSF3 and G955FOXM4DSE4

USA FIRMWARE : (5DSF3)

INDIAN FIRMWARE : (4DSE4)

help appriciated.

thanks.
[Samsung Galaxy S8+ Guides, News, & Discussion] itsme_4ucz:
screenshots
[Samsung Galaxy S8+ Guides, News, & Discussion] nimms:
If you are getting DBT that means you did not do combination rom step correctly. Set INS on combination rom then try sideloading on stock.

That DBT is for duetch. Means you had success changing to exynos csc version.

Try combination rom steps again.
[Samsung Galaxy S8+ Guides, News, & Discussion] itsme_4ucz:
I did INS in the combination rom step correctly not 1 or 2 but almost 10 times, thats the reason i posted here, not able to ins/ins/xaa

thankyou for the reply, please help me in this S8+ converting. to volte.:highfive:

one more time
[Samsung Galaxy S8+ Guides, News, & Discussion] nimms:
Try to keep Indian Sim inside if not done already.

Or do a factory reset with the sim inside.
[Samsung Galaxy S8+ Guides, News, & Discussion] itsme_4ucz:
Hi

NIMMS i did this too, but no luck........:(:rolleyes:
[Samsung Galaxy S8+ Guides, News, & Discussion] chetan180:
when tapd instal does it shows success ..?

after installing ins via combination file do u flash full rom/..?

try to install without csc just keep it blank. onces install it will show u your data corrupted just reset it n done now check ur phone volte

how ur phone is unlocked
[Samsung Galaxy S8+ Guides, News, & Discussion] itsme_4ucz:
already tried it, still no luck.:(
[Samsung Galaxy S8+ Guides, News, & Discussion] chetan180:
i also had same problem before with my s8 it was showing dbt

clean install stock then sideload zip then flash combination install ins then set ins via adb

16) Type in echo "INS" > /efs/imei/mps_code.dat (Please make note of the space between " and > and /)

then flash stock with csc blank . n check it had worked for me .
[Samsung Galaxy S8+ Guides, News, & Discussion] itsme_4ucz:
thank you for prompt reply. Tried this too bro.:highfive:
[Samsung Galaxy S8+ Guides, News, & Discussion] chetan180:
did it work,,?

or else flash combination then ins then goto about screen n check ins .

dont flash stock rom. directly goto about phone n see if u dont get then you are makinng some mistake while installing
[Samsung Galaxy S8+ Guides, News, & Discussion] itsme_4ucz:
nope no success yet....:crying::(

i was able to do it on my Note 8 successfully.
[Samsung Galaxy S8+ Guides, News, & Discussion] chetan180:
try to extract from newer firmware ..
[Samsung Galaxy S8+ Guides, News, & Discussion] shaun100689:
What if in the worst case if the phone is carrier lock....Any way to check or unlock it....??
[Samsung Galaxy S8+ Guides, News, & Discussion] nimms:
Flash stock firmware for your device specific carrier.. Insert sim card and see if you get unlock prompt.

If you get LTE signal now and it's locking on Jio signal, that means it's not locked.
[Samsung Galaxy S8+ Guides, News, & Discussion] nimms:
Update about S9 and Note 9.

Most recent XAA firmware gets Volte activated on Jio automatically. No need to mod anything.

Can someone test their S8 and note 8 with latest security patch firmware and report?
[Samsung Galaxy S8+ Guides, News, & Discussion] niyant:
VOlte + oneui pie

Guys guys after flashing that sec_omc that 400mb something zip file Than flash android pie

https://www.sammobile.com/samsung/g...e/SM-G955U/USC/download/G955USQS6DSH2/288245/

Flash using normal Odin NO PRINCE COMSY ODIN IT WILL NEVER WORK select any version of G955U and then there are options select usc

Flash all files including user data IT IS AT&T Firmware don't worry it is unlocked firmware VOLTE OPTION WILL WORK NO BUGS HERE BUT ONE THING THAT THERE IS NO MOBILE DATA OPTION so go to settings data saver and open. Mobile data

---------- Post added at 10:16 PM ---------- Previous post was at 10:14 PM ----------

Guys guys after flashing that sec_omc that 400mb something zip file Than flash android pie

https://www.sammobile.com/samsung/g...e/SM-G955U/USC/download/G955USQS6DSH2/288245/

Flash using normal Odin NO PRINCE COMSY ODIN IT WILL NEVER WORK select any version of G955U and then there are options select usc

Flash all files including user data IT IS AT&T Firmware don't worry it is unlocked firmware VOLTE OPTION WILL WORK NO BUGS HERE BUT ONE THING THAT THERE IS NO MOBILE DATA OPTION so go to settings data saver and open. Mobile data
[Samsung Galaxy S8+ Guides, News, & Discussion] Ameysalve:
G950U oneUi bootloader version 6

Sir i have a s8 g950u and currently it's on oneui and carrier AIO am living in India I want to change my csc how to do it sir can any one help me please I am on bootloader version 6 I guess... help me please.
[Samsung Galaxy S8+ Guides, News, & Discussion] bunny@99:
Help me please

sir am on ONEUI and i want to get volte in my phone its G950U right now am using G950U1 XXA frimware whenever i tried to get back to oreo to get volte its getting error please help me out

error is FAIL ! (AUTH)
[Samsung Galaxy S8+ Guides, News, & Discussion] Rudraprat:
Didn’t work on my S8+.
[Samsung Galaxy S8+ Guides, News, & Discussion] nimms:
You cannot downgrade the bootloader version (check if both files have same version or not)
[Samsung Galaxy S8+ Guides, News, & Discussion] Rudraprat:
S8+ on BL6

I'm not able to flash the sec_omc.zip during the final step this time around.

All the files including the one I extracted sec_omc_1.zip failed to flash.
[Samsung Galaxy S8+ Guides, News, & Discussion] shaun100689:
Any links to the latest firmware...Or can you tell the version code
[Samsung Galaxy S8+ Guides, News, & Discussion] jcmolero:
I can't get this working for the U series, it keeps saying me it's not signed nor finishes installation (in both sd and adb cases), even if I extracted a newer csc.zip
[Samsung Galaxy S8+ Guides, News, & Discussion] jcmolero:
sam & updato been picky about direct links, just search Galaxy S8/+/N8 for the U series, csc is XAS and Pie 9 for refine search, firmwware at September 29
[Samsung Galaxy S8+ Guides, News, & Discussion] sharingspider:
Latest OMC zip extracted from CSC_OXM_G955FOXM5DSHC_CL16626841_QB25608986_REV00_user_low_ship.tar

Follow the steps by OP. Just flash this OMC zip and USA S8+ will have VOLTE working on Jio.

https://drive.google.com/file/d/1x0pnrNkLIWA3N2lfwtiGGy_QSPOB7wXp/view?usp=sharing
[Samsung Galaxy S8+ Guides, News, & Discussion] aLoNeT23:
I am unable to change the code XAA in factory mode, after flashing with original firm

I followed the steps posted by OP and used this CSC on SM-G950U1 running S6DSI1 using BL6 combination file

I am unable to change the code XAA in factory mode, after flashing with original firmware it came as DBT/DBT/XAA,

Please help to have it changed to INS/INS/XAA to support Jio VoLTE
[Samsung Galaxy S8+ Guides, News, & Discussion] shaun100689:
File for S8.....?
[Samsung Galaxy S8+ Guides, News, & Discussion] itsme_4ucz:
works for both S8 and S8+
[Samsung Galaxy S8+ Guides, News, & Discussion] nimms:
Try combination rom and Change to INS on combination rom again. Something went wrong in that step.
[Samsung Galaxy S8+ Guides, News, & Discussion] Rudraprat:
How you extracted OMC zip?

When cache.img dragged onto imgRePackerRK the generated file should be cache.img.iso zip file (YouTube video also shows a cache.img.ext4.iso zip). But there was a cache.img.img file along with a cache.img.cfg file.

I noticed the Imgextractor is not seen in the OMC extract folder. It's in bin folder. Moving it to the OMC extract folder also didn't work.
[Samsung Galaxy S8+ Guides, News, & Discussion] aLoNeT23:
Combination rom BL6 didn't allow to change default CSC

Hi,

I tried with BL6 combination rom, the factory binary didn't allow me to change XAA which is default; I tried with other versions of Combination file which is not allowing me to flash as they are BL5 & BL4 respectively.

So stuck with having DBT/DBT/XAA which is default setting available in sales_code.dat of sec_omc.zip shared on post# 510
[Samsung Galaxy S8+ Guides, News, & Discussion] nimms:
If it doesn't let you flash BL5 CSC zip on BL6 combination rom.. You may need to wait till BL6 comes out for exynos version.

I hope you tried flashing CSC zip on combo firmware.
[Samsung Galaxy S8+ Guides, News, & Discussion] Rudraprat:
My Snapdragon S8+ works perfectly for Airtel VoLTE here in Chennai.

I used this S8+ Combination ROM for V7 Bootloader.

https://androidfilehost.com/?fid=4349826312261672357

Thanks a lot again.
[Samsung Galaxy S8+ Guides, News, & Discussion] Harry sidhu:
i used that combination file https://androidfilehost.com/?fid=4349826312261672357 but sec_omc not showing INS ..

i extract the new sec_omc from new indian firmware but not working ...

please help .....
[Samsung Galaxy S8+ Guides, News, & Discussion] Rudraprat:
If the sec_omc.zip posted by nimms wasn’t working then try to extract it from Note 8 INS Firmware (SM-N950F) CSC.
[Samsung Galaxy S8+ Guides, News, & Discussion] emadhamid:
s7 edge new csc india march 10 2020

https://drive.google.com/file/d/1mhhf1osuXDUfAiC5uTH6qpVfhFVlHTDD/view?usp=sharing
[Samsung Galaxy S8+ Guides, News, & Discussion] bhola.rachit:
Can this process enable Vodafone volte or can i flash s9 csc on sprint s8?
[Samsung Galaxy S8+ Guides, News, & Discussion] nimms:
S8 is listed under compatible devices on voda website. Should work (the csc was extracted from latest Stock rom).

No guarantees though.
[Samsung Galaxy S8+ Guides, News, & Discussion] shadab Ahmed:
Can i execute this process with odin not ADB ??
[Samsung Galaxy S8+ Guides, News, & Discussion] chetan180:
do have to clean flash setup then flash adb or clean os n reboot to recovery adb n then setup ..?