Database Users

[Q] Changing Galaxy S4 CSC (i9505)

Hi everyone,
this maybe a very noob question but how do you change the CSC on the S4?
I recently flashed an unbranded UK firmware onto my Australian S4, back with my old phone, I was able to change the CSC with *#272*IMEI# though that doesn't seem to work now. So any ideas? Any help would be greatly appreciated. I want to change the CSC to a UK CSC so I'll be able to receive updates OTA or through kies.

1.Download the appropriate firmware for your region from sammobile.
2.Extract Hidden.img and cache.img
3.Now compress these two files together into a .Tar file.
4.Flash this in PDA section of Odin
5.You now have correct CSC
Sent from my GT-I9305 using XDA Premium HD app

Is anyone having trouble changing their CSC?
I've flashed the pre-rooted UK Firmware, and used CSC Changer to set the CSC to BTU.
It automatically re-boots, but the CSC hasn't changed.
I boot into recovery and perform a F.Reset, and the CSC still doesn't change to BTU.
As far as I can tell, I'm following all instructions correctly from here.
http://forum.xda-developers.com/showthread.php?t=2250824
"If someone want to change CSC, please use this app: Samsung Galaxy S2/S3 CSC
After using this app you MUST reboot into RECOVERY for the changes to take place.
Don't worry if you see some errors in recovery, it's NORMAL as "hidden.img" is excluded..
WORKS perfectly! TESTED!! "
I don't know what I'm doing wrong, and I'm getting increasingly frustrated!

Obagleyfreer said:
1.Download the appropriate firmware for your region from sammobile.
2.Extract Hidden.img and cache.img
3.Now compress these two files together into a .Tar file.
4.Flash this in PDA section of Odin
5.You now have correct CSC
Sent from my GT-I9305 using XDA Premium HD app
Click to expand...
Click to collapse
Tried that without success. Got a failure in Odin.
There's no hidden.img nor cache.img but hidden.img.ext4 and cache.img.ext4. Are these the correct files?

I downloaded latest btu UK firmware
Loaded with odin
Did a factory reset
Switched if and then went into recovery mode
Rebooted and btu was activated
I was not rooted
Sent from my GT-I9505 using xda premium

Lipito said:
Tried that without success. Got a failure in Odin.
There's no hidden.img nor cache.img but hidden.img.ext4 and cache.img.ext4. Are these the correct files?
Click to expand...
Click to collapse
they are just ext4 formats so u could mount it on linux or something else..
use mkuserimg.sh command to convert

I'm also interested in this. I also changed from Australian firmware to UK. Since changing I've noticed HD voice (wb amr) is off (check by typing *#0011# into dialer then menu key>back>menu key>key input >enter '1' then wait till menu appears >WB AMR Status.)
Prior to changing roms both WB AMR Setting and UTMS WB was On. Now they're both off. I did some searching and apparently its tied to the CSC.

so.....how do we change csc to s4? i have installed unbranded rom, wiped but csc remained the same. how de we change this?

I9505 stuck with wrong CSC
gangstar said:
so.....how do we change csc to s4? i have installed unbranded rom, wiped but csc remained the same. how de we change this?
Click to expand...
Click to collapse
I am also stuck after trying several suggestions of fixes..
The Sammobile firmware for NEE (Nordic) gives a CSC of BTU, i previously had H3G
Looks like we will have to wait till DEV's get time to build a work-around.
Doing web searches there are several dodgy sites that claim older changers work on the S4 & also giving instructions to install via the old way with the 3 files, instead of just the PDA.

Hikari0307 said:
Hi everyone,
this maybe a very noob question but how do you change the CSC on the S4?
I recently flashed an unbranded UK firmware onto my Australian S4, back with my old phone, I was able to change the CSC with *#272*IMEI# though that doesn't seem to work now. So any ideas? Any help would be greatly appreciated. I want to change the CSC to a UK CSC so I'll be able to receive updates OTA or through kies.
Click to expand...
Click to collapse
Try this to change CSC:
http://droidviews.com/2012/how-to-change-csc-in-samsung-galaxy-phones/

Very well written article, so thank you for the link. Sadly though, one of the methods worked for me. Any more ideas gratefully received though!

++
VogonP0et said:
Very well written article, so thank you for the link. Sadly though, one of the methods worked for me. Any more ideas gratefully received though!
Click to expand...
Click to collapse
i just reboted in stock android recovery (hold vol up + home button+ power),and it said "applied multi csc....and it changed the csc to the my curent firmware¨s csc

I am trying to set my csc to BTU. Im using csc changer app.
However everytime I run it, I dont get a screen allowing me to choose the csc as they show in guides.
I know the app works, since its changed my csc from EVR to DBT (since my rom is german based).
What am I doing wrong?

After playing around with several stock firmwares and Odin, I accidentally stumbled upon a method to change the CSC of my S4 I9505 without the need to root the device. I successfully changed from the original TGY (Hong Kong) to SIN (Singapore) and then to DBT (Germany). This is what I did (in summary)
Make sure you take a backup via Kies if you need personal files
Download the respective stock ROMS from sammobile.com or samsung-updates.com or see thread on Stock Roms on XDA
Extract zip to get tar.md5
Put device into download mode (Vol down+ Home + Power) and Flash using Odin (PDA option)
Wait till device reboots back into Android after completing the flash and recovery
Once device reboots, do a Factory Reset via Settings > Accounts
Once device reboots after Factory Reset/recovery, enter the google account info and restore settings and then turn off the device
Boot device back into download mode (Vol down+ Home + Power)
Re-flash the same downloaded firmware for a second time via Odin
Once the device reboots after the 2nd flash, your CSC should have changed to the CSC of the ROM you downloaded, and Kies also should show that CSC has changed and it should allow future updates via Kies or OTA

kaushalls said:
After playing around with several stock firmwares and Odin, I accidentally stumbled upon a method to change the CSC of my S4 I9505 without the need to root the device. I successfully changed from the original TGY (Hong Kong) to SIN (Singapore) and then to DBT (Germany). This is what I did (in summary)
Make sure you take a backup via Kies if you need personal files
Download the respective stock ROMS from sammobile.com or samsung-updates.com or see thread on Stock Roms on XDA
Extract zip to get tar.md5
Put device into download mode (Vol down+ Home + Power) and Flash using Odin (PDA option)
Wait till device reboots back into Android after completing the flash and recovery
Once device reboots, do a Factory Reset via Settings > Accounts
Once device reboots after Factory Reset/recovery, enter the google account info and restore settings and then turn off the device
Boot device back into download mode (Vol down+ Home + Power)
Re-flash the same downloaded firmware for a second time via Odin
Once the device reboots after the 2nd flash, your CSC should have changed to the CSC of the ROM you downloaded, and Kies also should show that CSC has changed and it should allow future updates via Kies or OTA
Click to expand...
Click to collapse
It's unnecessary to do steps 7-10. You may check your new CSC in recovery mode after restoring the device.

Drunk1105 said:
It's unnecessary to do steps 7-10.
Click to expand...
Click to collapse
I was thinking so too but that's exactly what helped me to change CSC on my i9295 (very common with i9505). After the first wipe I still had the old CSC (I checked in Kies though). After the full procedure I have proper CSC in Kies. Probably there is a easier way but this one works also.

gtp said:
I was thinking so too but that's exactly what helped me to change CSC on my i9295 (very common with i9505). After the first wipe I still had the old CSC (I checked in Kies though). After the full procedure I have proper CSC in Kies. Probably there is a easier way but this one works also.
Click to expand...
Click to collapse
You had to restart Kies, it would show the new CSC then.

Drunk1105 said:
You had to restart Kies, it would show the new CSC then.
Click to expand...
Click to collapse
Of course I restarted Kies. I think what I have not done is entering Recovery once the Odin flash is done. Entering Recovery gives the following: Applying Multi-CSC... Applied the CSC-code: XXX (my new CSC here). And I think here's where all the magic happens.

gtp said:
Of course I restarted Kies. I think what I have not done is entering Recovery once the Odin flash is done. Entering Recovery gives the following: Applying Multi-CSC... Applied the CSC-code: XXX (my new CSC here). And I think here's where all the magic happens.
Click to expand...
Click to collapse
At least for me, my device goes in to "Recover Booting" after each Odin flash as well as a factory reset. I actually tried a a manual recovery boot via Vol Up + Home + Power after the factory reset in step 6, but it did not change my CSC, hence doing all steps is what worked for me all the time. I once skipped the Google login part after the factory reset and it didn't work that time either and had to do another factory reset, google login and another re-flash.
I wish there is an easier way, the reason I have been experimenting with different firmwares is to see if I can get LTE working natively, since phone does not show the LTE option under Mobile Networks. We have 2 operators offering LTE here in Sri Lanka but Samsung only sells the I9500 officially here which does not have LTE, so got down my I9505 from HK. So far I have had to use Viaero 4G Toggle app from the play store to enable LTE, while it works, enabling LTE this way is a huge battery drainer!

but is there a way to extract CSC from a particular firmware and flash only this?
I used to do it on my S3 by using the hidden.img and the cache.img but if I try in Odin on the S4 it fails (

CSC-HOME and CSC simple????

Hi Guys
i have a question i want to flash my galaxy s7 edge with Odin i want to ask that there is some confusion between HOME-CSC and CSC simple
1-Can you please guide me which one i need to select to flash my phone?
2-What is Difference between the HOME-CSC and CSC?
3-What happened with both of them if i will flash with one of them ?
Guys ill wait for your reply ......hope so you will guide me in this matter

let's say you wanna update your phone without wiping the data u have on it. you use the home csc. If u have custom recovery and custom rom and you wanna go back to stock firmware you flash the csc file.
Sent from my SM-G935F using XDA-Developers mobile app

ecg803 said:
let's say you wanna update your phone without wiping the data u have on it. you use the home csc. If u have custom recovery and custom rom and you wanna go back to stock firmware you flash the csc file.
Sent from my SM-G935F using XDA-Developers mobile app
Click to expand...
Click to collapse
I am already on the Stock and with the stock recovery if i will select the CSC simple what will happen is there any DAMAGE to my phone???

the csc file will just wiped the whole phone of your data just like day u bought it.
Sent from my SM-G935F using XDA-Developers mobile app

ecg803 said:
the csc file will just wiped the whole phone of your data just like day u bought it.
Sent from my SM-G935F using XDA-Developers mobile app
Click to expand...
Click to collapse
Then CSC simple is good i want wipe all of the data thanks a LOT...........one more question if you have a answer about that i saw error in recovery
E: CANT MOUNT / DATA (invalid aurgument)
is there any soln about this issue what you said about this error.....but this error did nothing to my phone my phone is working normally
your answer is required

that is normal.
Sent from my SM-G935F using XDA-Developers mobile app

There should be a guide on this...!

But what's the difference between CSC and HOME_CSC?

treysis said:
But what's the difference between CSC and HOME_CSC?
Click to expand...
Click to collapse
Didn't he already answer that question?
Home_CSC: Flash the firmware without wiping the data (if you just want to update the ROM)
CSC: Flash the firmware along with a complete wipe including data (mostly used in cases like bricked phones or Go-Back-To-Stock situations)
I always backup data and do a clean install with CSC ! Its recommended.

When I wanted to swap the firmware from (V) Verizon to (U) Unlocked, I had to use CSC simple, the Home_CSC gave an error. So I assumed the existing data cannot be "saved" when firmware are of different types.
I have asked about this and I wasn't that lucky to get an answer, so I just tried it (trial and error).
However, I think the data wipe is just a side-effect, not the purpose of CSC. Changing the CSC will always wipe data, including any custom software from the previous carrier:
https://productioncommunity.publicm...ung-Phone-Info/m-p/53208/highlight/true#M6228
In my case the original Home_CSC, had only VZW (Verizon) code available. The new unlocked firmware brought in 15 different CSC codes that can be applied when a SIM from one of those providers is introduced in the phone. Phone INFO shows those codes.

@NaJeEb303 He did answer, but he didn't make it clear. Only after knowing the answer I can understand what he meant. So thanks to you for clarifying.

adnanandhoney said:
Hi Guys
i have a question i want to flash my galaxy s7 edge with Odin i want to ask that there is some confusion between HOME-CSC and CSC simple
1-Can you please guide me which one i need to select to flash my phone?
2-What is Difference between the HOME-CSC and CSC?
3-What happened with both of them if i will flash with one of them ?
Guys ill wait for your reply ......hope so you will guide me in this matter
Click to expand...
Click to collapse
Brother when you are flashing firmware with same csc as your previous firmware then you can use Home_csc and if you are flashing different csc firmware then you have to use file which starts with csc. You will lose data when not using home_csc because it contains different partition information and flashing this will delete you previous partition resulting loss of data but a successful flashing if you are stuck with home_csc. Hope you got your answer.

where do i find the HOME_CSC file?

Hey all,
i just used Odin3-v3.13.1 to upgrade from:
G935FXXU2EREM - GALAXY S7 EDGE SM-G935F DBT GERMANY
to:
G935FXXU2ERG2 - GALAXY S7 EDGE SM-G935F DBT GERMANY
First i selected all AP, BL, CP and HOME_CSC and started flasching. At the very last step (think it was the csc part) it failed.
The Phone said i thould have to use SmartSwitch to get Recovery. So i just opened odin again and just selected AP, BL and CP no csc this time.
That worked. Phone booted, did a bit upgrading and optimizing and now iam on 01.July upgraded. All fine!
But now iam really confused about csc in general.. what is it doing? And is it safe to just leave any csc file empty in odin when doing an upgrade?

No idea? Maybe i should better start a new fred for that

how can i get home_csc for samsung note 3 n900? thanks

How to modify CSC to prevent wipe of my files?
Hello!
How to wipe android OS, but keep my files, like documents, pictures, audio and video in SAMSUNG SM-N9005 memory? 'Android system' package was disabled in 'packagedisabler pro', and now SM-N9005 sticks during booting with animated SAMSUNG logo. Flashing with HOME firmware does not recover because it does not enable 'Android system' package.
How to modify CSC to prevent wipe of my files?
or
How to modify HOME_CSC to wipe android OS but keep my files?
Thanks!

I was answered this on Reddit
I started a thread on Reddit about how to get OTA after stock ROM flash, and the guy said that if I used the CSC file in the CSC field in Odin, I should still get OTA, so I guess it just means you would get OTAs on it. I think it depends on other factors such as build number and others too though, so I would research first.

NaJeEb303 said:
Didn't he already answer that question?
Home_CSC: Flash the firmware without wiping the data (if you just want to update the ROM)
CSC: Flash the firmware along with a complete wipe including data (mostly used in cases like bricked phones or Go-Back-To-Stock situations)
I always backup data and do a clean install with CSC ! Its recommended.
Click to expand...
Click to collapse
my tab s4 is factory unlocked. I'm currently using a tmobile sim. will flashing either of these remove the unlock? looking to flash android pie

i have done everything as said and my process has fail for s7 galaxy. how do revert back or redo?

How to reinstall firmware on S7 edge?

Hi everyone. I am having battery drain issues after i installed the September security update. I want to reinstall the firmware on smart switch by connecting to PC.
The last time i tried it through emergency software recovery in fownload mode, I almost bricked my phone. Can i reinstall using device initialization option? Which one would be better?
Thanks in advance.

Chirag22ster said:
Hi everyone. I am having battery drain issues after i installed the September security update. I want to reinstall the firmware on smart switch by connecting to PC.
The last time i tried it through emergency software recovery in fownload mode, I almost bricked my phone. Can i reinstall using device initialization option? Which one would be better?
Thanks in advance.
Click to expand...
Click to collapse
Why not using odin instead?

Geoz said:
Why not using odin instead?
Click to expand...
Click to collapse
Thank you.
Tried it when i had bricked my phone. Want successful. Went through most of the tutoriala but didnt succeed. Would love to flash APC8 if I am able to use Odin.

Chirag22ster said:
Thank you.
Tried it when i had bricked my phone. Want successful. Went through most of the tutoriala but didnt succeed. Would love to flash APC8 if I am able to use Odin.
Click to expand...
Click to collapse
When you brick your device it has nothing to do with Odin (use the latest version)
Make sure you install the right firmware for your device
Import the appropriate files to Odin exactly where they supposed to be
You'll have five files when unpacked downloaded package
Installing CSC will wipe your device, to avoid that you have to install HOME_CSC instead
You may also need to set a password for a secure startup as it may ask

Geoz said:
When you brick your device it has nothing to do with Odin (use the latest version)
Make sure you install the right firmware for your device
Import the appropriate files to Odin exactly where they supposed to be
You'll have five files when unpacked downloaded package
Installing CSC will wipe your device, to avoid that you have to install HOME_CSC instead
You may also need to set a password for a secure startup as it may ask
Click to expand...
Click to collapse
Thanks again. My model no is 935 FD. APC8 is available for model 935F. Can i flash it for 935 FD model?

Chirag22ster said:
Thanks again. My model no is 935 FD. APC8 is available for model 935F. Can i flash it for 935 FD model?
Click to expand...
Click to collapse
Yes I think but I have the F model so I never tried that, Do so search on Google

Geoz said:
When you brick your device it has nothing to do with Odin (use the latest version)
Make sure you install the right firmware for your device
Import the appropriate files to Odin exactly where they supposed to be
You'll have five files when unpacked downloaded package
Installing CSC will wipe your device, to avoid that you have to install HOME_CSC instead
You may also need to set a password for a secure startup as it may ask
Click to expand...
Click to collapse
Hey again, @Geoz
I have two questions:
1. I can't get FOTA on my S7E, I think because the CSC file. Can I really flash the "HOME" one and not wipe data?
2. If I want to flash another Stock ROM, I must set secure startup? And if I forget, there is any solution?

LironImaN said:
Hey again, @Geoz
I have two questions:
1. I can't get FOTA on my S7E, I think because the CSC file. Can I really flash the "HOME" one and not wipe data?
2. If I want to flash another Stock ROM, I must set secure startup? And if I forget, there is any solution?
Click to expand...
Click to collapse
If you want to flash different stock firmware other than your region, flash the three (BL, AP, CP ) and use your original HOME_CSC (you are aware that you have to start all over), installing your region stock firmware with HOME_CSC will not wipe your device.
If you forget password use (default_password) without the brackets but it's important to set it before and use it only if you forget

Geoz said:
If you want to flash different stock firmware other than your region, flash the three (BL, AP, CP ) and use your original HOME_CSC (you are aware that you have to start all over), installing your region stock firmware with HOME_CSC will not wipe your device.
If you forget password use (default_password) without the brackets but it's important to set it before and use it only if you forget
Click to expand...
Click to collapse
But if I will flash other region FW and my own country CSC, I won't be able to get FOTA. As far as I know, The FW and the CSC has to match to get updates.
About password for secure startup, I mean, is it really necessary to set it before flashing new ROM? I must set it up?

LironImaN said:
But if I will flash other region FW and my own country CSC, I won't be able to get FOTA. As far as I know, The FW and the CSC has to match to get updates.
About password for secure startup, I mean, is it really necessary to set it before flashing new ROM? I must set it up?
Click to expand...
Click to collapse
You don't have to do anything just a heads up

S7 edge stuck on blue screen and download mode
It allows me to start a download In odin but fails everytime. Can I send my phone somewhere to have firmware reinstalled? I tried to get passed FRP lock cause I got ripped off and my computer died during a power outage so now the phone won't boot firmware or let me intall. I've tried 5 different ones. HELP:crying:

//G950U TMB\\ Stock Odin files firmware G950USQS2BQL1

Here are the T-Mobile S8 stock G950USQS2BQL1 Odin files.
Model: SM-G950U
Model Name: Galaxy S8
Country: USA (T-Mobile) (TMB)
Version: Android 7.0
Security Patch Level: December 1st, 2017
Product code: TMB
PDA: G950USQS2BQL1
CSC: G950UOYN2BQL1
Download here: G950USQS2BQL1

hi, i was on this build before side loading U2CRA1 which turned out to be another beta build and not official. can i use the latest odin 3.12.7 to flash back to this build? what other requirements are needed to flash back to BQL1? im 100 percent stock, never rooted never unlocked just plain stock with the exception of side loading U2CRA1. thanks in advance

maddoggin said:
hi, i was on this build before side loading U2CRA1 which turned out to be another beta build and not official. can i use the latest odin 3.12.7 to flash back to this build? what other requirements are needed to flash back to BQL1? im 100 percent stock, never rooted never unlocked just plain stock with the exception of side loading U2CRA1. thanks in advance
Click to expand...
Click to collapse
Yes, you can use this firmware to flash back to stock 2BQL1 via ODIN . If you have t-mobile, flash USERDATA, BL, AP, CSC or HOME CSC to retain your data, otherwise your data will be deleted. Be sure to back up your data before flashing. If your carrier is not t-mobile, flash BL,AP,CSC or HOME CSC and don't flash USERDATA. If you have further questions, let me know.

bboii86 said:
Yes, you can use this firmware to flash back to stock 2BQL1 via ODIN . If you have t-mobile, flash USERDATA, BL, AP, CSC or HOME CSC to retain your data, otherwise your data will be deleted. Be sure to back up your data before flashing. If your carrier is not t-mobile, flash BL,AP,CSC or HOME CSC and don't flash USERDATA. If you have further questions, let me know.
Click to expand...
Click to collapse
how do i flash user data? i understood i should flash BL,AP,CP and CSC. i dont see a slot in odin for userdata?

maddoggin said:
how do i flash user data? i understood i should flash BL,AP,CP and CSC. i dont see a slot in odin for userdata?
Click to expand...
Click to collapse
It would be under UMS for USERDATA

bboii86 said:
It would be under UMS for USERDATA
Click to expand...
Click to collapse
so once again i would flash BL, AP, CP, CSC and UMS (USERDATA). i flashed BL, AP, CP and CSC_OYN earlier and i got E:ensure_path_unmounted failed to unmount/efs (device or resource busy) i booted up anyway and then sideloaded CRA9 and got same error during flash in recovery but everything seems to running fine. imei is shown and everything good. but in recovery i have this

heres a better photo

maddoggin said:
so once again i would flash BL, AP, CP, CSC and UMS (USERDATA). i flashed BL, AP, CP and CSC_OYN earlier and i got E:ensure_path_unmounted failed to unmount/efs (device or resource busy) i booted up anyway and then sideloaded CRA9 and got same error during flash in recovery but everything seems to running fine. imei is shown and everything good. but in recovery i have this
Click to expand...
Click to collapse
Yes, in ODIN you would flash BL, AP, CP, CSC & UMS (USERDATA). (Only for T-Mobile) For the second part, what I recommend doing is once you flash the stock firmware, go to recovery, wipe data & cache and reboot. Once it reboots, turn off the device, go to recovery and sideload CRA9 from SD card. Once the installation completes, do the same process in recovery wipe data & cache, reboot and you should be fine.

bboii86 said:
Yes, in ODIN you would flash BL, AP, CP, CSC & UMS (USERDATA). (Only for T-Mobile) For the second part, what I recommend doing is once you flash the stock firmware, go to recovery, wipe data & cache and reboot. Once it reboots, turn off the device, go to recovery and sideload CRA9 from SD card. Once the installation completes, do the same process in recovery wipe data & cache, reboot and you should be fine.
Click to expand...
Click to collapse
thanks man! appreciate your help!

maddoggin said:
heres a better photo
Click to expand...
Click to collapse
What is your original carrier? Go to settings, go to about phone, software information & then check service provider if your device is originally from t-mobile it would look like this TMB/TMB/TMB the last one is the stock Odin firmware you should be flashing.
Last 3 is original device carrier
TMB - T-Mobile
ATT - AT&T
SPR- Sprint
VZW Verizon

maddoggin said:
thanks man! appreciate your help!
Click to expand...
Click to collapse
No problem.

bboii86 said:
What is your original carrier? Go to settings, go to about phone, software information & then check service provider if your device is originally from t-mobile it would look like this TMB/TMB/TMB the last one is the stock Odin firmware you should be flashing.
Last 3 is original device carrier
TMB - T-Mobile
ATT - AT&T
SPR- Sprint
VZW Verizon
Click to expand...
Click to collapse
TMB/TMB/TMB
---------- Post added at 05:13 AM ---------- Previous post was at 05:11 AM ----------
"the last one is the stock Odin firmware you should be flashing"
What do you mean by that?

maddoggin said:
TMB/TMB/TMB
---------- Post added at 05:13 AM ---------- Previous post was at 05:11 AM ----------
"the last one is the stock Odin firmware you should be flashing"
What do you mean by that?
Click to expand...
Click to collapse
Sometimes people flash the wrong stock files that doesn't belong to the device and get errors. That's what I was referring to.

problems
i just got an s8 from a friend thats in factory binary, id like to get some sort of usable rom/firmware on there as my s6 is starting to die out. i downloaded odin 3.1.3 and it give me an error whenever i try to flash twrp "sha256 fail" so i downloaded the modified prince version and i dont get that code however i get "FAIL! log auth" im really stuck and dont know my way out please help

bboii86 said:
Yes, in ODIN you would flash BL, AP, CP, CSC & UMS (USERDATA). (Only for T-Mobile) For the second part, what I recommend doing is once you flash the stock firmware, go to recovery, wipe data & cache and reboot. Once it reboots, turn off the device, go to recovery and sideload CRA9 from SD card. Once the installation completes, do the same process in recovery wipe data & cache, reboot and you should be fine.
Click to expand...
Click to collapse
doesnt give me option to use the ums (USERDATA) button. its greyed out! even after opening all the other files!
i opened up the text file for odin and switched from 0 to 1 like all the others. is this correct?
but i also see an option for userdata thats also checked to 0 your sure i can flash the userdata file on ums button?

bluntmedia said:
i just got an s8 from a friend thats in factory binary, id like to get some sort of usable rom/firmware on there as my s6 is starting to die out. i downloaded odin 3.1.3 and it give me an error whenever i try to flash twrp "sha256 fail" so i downloaded the modified prince version and i dont get that code however i get "FAIL! log auth" im really stuck and dont know my way out please help
Click to expand...
Click to collapse
Do you know what's the original carrier? That way I can give you a link with the stock firmware of that specific carrier.

maddoggin said:
doesnt give me option to use the ums (USERDATA) button. its greyed out! even after opening all the other files!
i opened up the text file for odin and switched from 0 to 1 like all the others. is this correct?
but i also see an option for userdata thats also checked to 0 your sure i can flash the userdata file on ums button?
Click to expand...
Click to collapse
There's some Odin that allow and don't allow you to use UMS. I will provide you with a link of the Odin I use that supports UMS flashing.
Download here:
Odinv3.12.17

maddoggin said:
so once again i would flash BL, AP, CP, CSC and UMS (USERDATA). i flashed BL, AP, CP and CSC_OYN earlier and i got E:ensure_path_unmounted failed to unmount/efs (device or resource busy) i booted up anyway and then sideloaded CRA9 and got same error during flash in recovery but everything seems to running fine. imei is shown and everything good. but in recovery i have this
Click to expand...
Click to collapse
I'm getting this same error after flashing 2BQL1 and even after sideloading CRB1. The message also shows up when I boot into recovery. Were you able to find a fix?

Philosuffer said:
I'm getting this same error after flashing 2BQL1 and even after sideloading CRB1. The message also shows up when I boot into recovery. Were you able to find a fix?
Click to expand...
Click to collapse
Unfortunately not, everything seems to still be good but I did find a thread in the Galaxy S7 forum about the issue but the issue they have is more complex. The IMEI on their phone is all zeros and mine still shows numbers. I've tried factory reset thru recovery and clear cache but still have the same issue. I think maybe it has to do with different bootloader or something. Not sure. If you find a fix this let me know.
---------- Post added at 02:02 AM ---------- Previous post was at 01:47 AM ----------
https://forum.xda-developers.com/galaxy-s8/help/eensurepathunmounted-failed-to-unmount-t3690272

Question, why when I attempt to download the stock room file at the beginning of this thread it say it's trash by owner.

SM-G935F Firmware for United States

Hello, I purchase a SM-G935F from a pawnshop today that was flashed with a custom ROM however it does not boot. The phone goes into download mode just fine and want to flash stock firmware but cannot find the USA version. The box came the phone and appears to be a USA version, the UPC code on the box is 8806088275123 and I check the IMEI on a website service and it came back with this model number SM-G935FZKLTTT and says it was sold in the USA. Any help from members would be greatly appreciated, thank you in advance for your help.
Mark

You can flash any region firmware on the SM-G930F phone, try this one:
https://www.sammobile.com/firmwares/galaxy-s7-edge/SM-G935F/BTU/
How to install Samsung Firmware: http://updato.com/how-to/how-to-install-an-official-samsung-stock-firmware-using-odin

benjamen50 said:
You can flash any region firmware on the SM-G930F phone, try this one:
https://www.sammobile.com/firmwares/galaxy-s7-edge/SM-G935F/BTU/
How to install Samsung Firmware: http://updato.com/how-to/how-to-install-an-official-samsung-stock-firmware-using-odin
Click to expand...
Click to collapse
Thank you my friend, trying now.

I forgot to tell you that factory reset is required when switching from custom rom to stock rom so make sure you flash the non home CSC file and not the home_csc file.

benjamen50 said:
I forgot to tell you that factory reset is required when switching from custom rom to stock rom so make sure you flash the non home CSC file and not the home_csc file.
Click to expand...
Click to collapse
Thank you for your time but not sure I understand what a home and non home CSC file is? it is in the download?

markh61133 said:
Thank you for your time but not sure I understand what a home and non home CSC file is? it is in the download?
Click to expand...
Click to collapse
Yes, it is in the download. When you download Samsung firmware from Sammobile or Updato website they come in a zipped file. You'll need to extract the zipped folder which will give you multiple files labelled AP, BL, CP, CSC and lastly HOME_CSC.
This is an example of what the files look like when the files are extracted from the downloaded firmware zip file:
http://prntscr.com/k07am0
The non_home csc file is used to tell the phone to wipe the user data on the phone when flashed, the home CSC is used if you don't want to wipe the user data on the phone when flashing firmware.

markh61133 said:
Thank you for your time but not sure I understand what a home and non home CSC file is? it is in the download?
Click to expand...
Click to collapse
Right now the phone will not boot, it shows the title of the phone but then just loops back to a black screen.

benjamen50 said:
Yes, it is in the download. When you download Samsung firmware from Sammobile or Updato website they come in a zipped file. You'll need to extract the zipped folder which will give you multiple files labelled AP, BL, CP, CSC and lastly HOME_CSC.
This is an example of what the files look like when the files are extracted from the downloaded firmware zip file:
http://prntscr.com/k07am0
The non_home csc file is used to tell the phone to wipe the user data on the phone when flashed, the home CSC is used if you don't want to wipe the user data on the phone when flashing firmware.
Click to expand...
Click to collapse
Got it, thank you so much for all your help, I really appreciate it.

benjamen50 said:
Yes, it is in the download. When you download Samsung firmware from Sammobile or Updato website they come in a zipped file. You'll need to extract the zipped folder which will give you multiple files labelled AP, BL, CP, CSC and lastly HOME_CSC.
This is an example of what the files look like when the files are extracted from the downloaded firmware zip file:
http://prntscr.com/k07am0
The non_home csc file is used to tell the phone to wipe the user data on the phone when flashed, the home CSC is used if you don't want to wipe the user data on the phone when flashing firmware.
Click to expand...
Click to collapse
Hello again Benjamen50, it failed on the first try, do I need to check re-partition? or Nand Erase? What about a Pit file? sorry to keep bothering you but I appreciate your help.
Mark

If you are flashing Oreo firmware which is 8.0 you need to use Odin 3.13 or newer as the older Odin software does not support flashing Oreo firmware.
The only buttons you need to click are BL, AP, CP, CSC then start and nothing else.
The default check boxes under options tab will be auto reboot and f reset time. Others should be left untouched and not checked.
You'll need to reboot download mode again which can be done by holding the download mode keys until you get that blue screen again or that it says that something ran into a problem with the blue screen which allows flashing as well.

benjamen50 said:
If you are flashing Oreo firmware which is 8.0 you need to use Odin 3.13 or newer as the older Odin software does not support flashing Oreo firmware.
The only buttons you need to click are BL, AP, CP, CSC then start and nothing else.
The default check boxes under options tab will be auto reboot and f reset time. Others should be left untouched and not checked.
You'll need to reboot download mode again which can be done by holding the download mode keys until you get that blue screen again or that it says that something ran into a problem with the blue screen which allows flashing as well.
Click to expand...
Click to collapse
Thank you my friend, you are the best. I flashed a older version and it worked perfect. I cant thank you enough for all your help and patience!

benjamen50 said:
If you are flashing Oreo firmware which is 8.0 you need to use Odin 3.13 or newer as the older Odin software does not support flashing Oreo firmware.
The only buttons you need to click are BL, AP, CP, CSC then start and nothing else.
The default check boxes under options tab will be auto reboot and f reset time. Others should be left untouched and not checked.
You'll need to reboot download mode again which can be done by holding the download mode keys until you get that blue screen again or that it says that something ran into a problem with the blue screen which allows flashing as well.
Click to expand...
Click to collapse
Hello again, well I thought it worked because I got a PASS in Odin however, when the phone boots, I get a Black screen saying Samsung Galaxy S7 Edge then it goes to a blue screen with the android logo and it says erasing at the bottom for a few seconds then the screen goes black. The phone still goes into download mode however, it will not go into recover mode. Before flashing this I could get into recovery mode but would see a custom page with loading and rebooting options. Am I missing the stock boot loader? So sorry to keep bothering you about this.
Mark

try using octoplus samsung tool if you dont know how look it up on youtube first best of luck to you