Question How to go Orginal CSC code revert back - Samsung Galaxy S21+

Dear friends, last day I will flash my phone to UAE CSC to Indian CSC unfortunately phone not showing INU CSC,it's shows EUX/XSG (UAE ) ( Samsung members app ,Samsung pay not works) then I again flash via Odin another Indonesia firmwares its change XID/ XSG now works all apps but Indonesia specificall only. So I can't use Samsung pay gulf etc, many time I tried to flash UAE or Indian firmware ( I have both SIM, also I am in UAE) but it's not come that specific CSC, any another country try its shows EUX,XSG only previously I have too many CSC in built now only 2 shows, so how can I go back as a stock

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Samsung Pay G930F

Hi
I have a S7 G930F (single sim) version. It has an XSG firmware from the UAE (Phone is from Dubai).
I'm trying to work out how samsung pay will work when available in the UK. I can access the app now without any issues.
Would it detect that I'm not on a BTU (UK) firmware and not let Samsung pay work or is it depended on if I am using a UK Sim etc?
I guess the easy answer to this would be ' Has anyone used their current european G930/G935 in the US on Samsung Pay with a US sim card and had it work?
I can't flash BTU firmware and CSC as Samsung Pay will only ever work on the original CSC and even when installing new firmware and CSC from another region is keeps a log of the original CSC on the phone and detects a modification.
My know is still 0x0 by the way as I've only used Odin with stock firmware.

OTA Nougat UK

I have an S7 on MM, when are Nougat OTA's are coming to the UK? I don't bother rooting any longer but I am tempted to sideload if Samsung are going to take forever.
Depend on what s7 you have?
Edge G935
I'm on a sim only plan with BT so I own my phone rather than rent, I have spoken to BT who tell me its a Samsung OTA and they have no control, and Samsung merely tell me to to contact my Carrier.
Might end up sideloading!
It's already out. What CSC are you using?
Is the device network locked.
Can you install "Phone Info" app from play store and check which CSC is currently set as your active CSC. The CSC is the one based on which the updates are set.
kamranali44 said:
It's already out. What CSC are you using?
Is the device network locked.
Can you install "Phone Info" app from play store and check which CSC is currently set as your active CSC. The CSC is the one based on which the updates are set.
Click to expand...
Click to collapse
XEU
Unlocked
It's not been released yet from what i can see on SamMobile.
InfernalByte said:
XEU
Unlocked
Click to expand...
Click to collapse
I have the same UK firmware but with BTU. The difference is given below (Copied from someone on xda). https://forum.xda-developers.com/galaxy-s6-edge/help/btu-xeu-t3100911
"I think i worked out the difference between BTU and XEU.
BTU firmware are on phones that come directly from Samsung (unbranded)
XEU firmware are on Sim Free handsets that are generic (unbranded) but not from Samsung"
You can now decide whether to wait for XEU or flash BTU. If you do decide to flash, backup data first and confirm that the active csc is set to BTU for OTA to work.
mimo2008 said:
It's not been released yet from what i can see on SamMobile.
Click to expand...
Click to collapse
Is this mine? Listed after the update half way down the page?
https://www.sammobile.com/2017/01/1...mware-for-the-galaxy-s7-now-available-online/
kamranali44 said:
I have the same UK firmware but with BTU. The difference is given below (Copied from someone on xda). https://forum.xda-developers.com/galaxy-s6-edge/help/btu-xeu-t3100911
"I think i worked out the difference between BTU and XEU.
BTU firmware are on phones that come directly from Samsung (unbranded)
XEU firmware are on Sim Free handsets that are generic (unbranded) but not from Samsung"
You can now decide whether to wait for XEU or flash BTU. If you do decide to flash, backup data first and confirm that the active csc is set to BTU for OTA to work.
Click to expand...
Click to collapse
I may wait a few weeks, unless its done with the flash Icannot set XEU to BTU, there is no option.
kamranali44 said:
I have the same UK firmware but with BTU. The difference is given below (Copied from someone on xda). https://forum.xda-developers.com/galaxy-s6-edge/help/btu-xeu-t3100911
"I think i worked out the difference between BTU and XEU.
BTU firmware are on phones that come directly from Samsung (unbranded)
XEU firmware are on Sim Free handsets that are generic (unbranded) but not from Samsung"
Click to expand...
Click to collapse
Is your phone direct from Samsung? Mine is Sim Free, unbranded not from Samsung.
Exu is Ireland band by the looks of it.
InfernalByte said:
Is your phone direct from Samsung? Mine is Sim Free, unbranded not from Samsung.
Click to expand...
Click to collapse
I brought it from ebay but I did flash the BTU firmware myself. My phone orignally had multi csc which included BTU and had a german (DBT) csc set as active.
You cannot change the CSC by device but you can flash a firmware with completely different CSC and then flash the BTU one.
I flashed mine with O2U firmware which made it forget the multi csc and then flashed BTU which set the active csc as BTU. I originally flashed the first nougat update release by Samsung and then received the performance update using OTA.
This might make it simple "You are not getting the BTU OTA updates because you don't have BTU CSC but DBT. You flashed BTU Rom but it's a multi CSC Rom and it has inside your original DBT CSC. So your CSC didn't change to BTU...If you want to have BTU CSC so you can get OTA upfates from BTU you have first to flash a rom that it's CSC is not inside the multi CSC you have now, let's say for example a rom with EUR CSC. Then you CSC will change to EUR. After that you can reflash BTU Rom and your CSC will change to BTU...Then you can take the OTA updates from BTU normally..."
Check this thread - https://forum.xda-developers.com/ga...ta-updates-t3552316/post70923890#post70923890
Check post number 32, I added the screenshots over there as well.
There is http://updato.com/ as well if you want to download firmware faster (a lot faster than sammobile). I think they are official but have only checked one so far.
Backup the data first, flashing a different csc will factory reset the device.
That's what I kinda done I was on vodafone and preferred to be on btu so I flashed that instead but once I flashed it done wipe cache and data factory reset just to make sure all was ok on another note I kept wifi calling as well.

Unable to change firmware on note 20 ultra

Hi, im unable to change firmware on my samsung galaxy note 20 ultra. Currently its UAE. I have downloaded srilanka firmware, successfully flashed it using odin. But when the phone is started it showes still on UAE. Kindly help or guide me on this issue.
Is UAE the firmware version or the CSC?
If it's the firmware version it's strange you can flash and get success then go back to the older firmware but if it's CSC then it's understandable.
You may need to look up how to change your CSC version, there are guides on here...
Flashing an OXM rom won't change your CSC but the firmware version will change.
anon_17 said:
Hi, im unable to change firmware on my samsung galaxy note 20 ultra. Currently its UAE. I have downloaded srilanka firmware, successfully flashed it using odin. But when the phone is started it showes still on UAE. Kindly help or guide me on this issue.
Click to expand...
Click to collapse
For people who can't switch between csc in the same mult csc pack. OXM multi csc pack contains all the european generic and network branded firmware (csc) so if You are at XSG (part of OXM multi pack), and flash it with SLK (part of OXM multi pack) the XSG will stay. What you need to do is to flash it with different multi csc pack (just see what packs are available for your model), try to flash Brazil CSC ZTO, which is part of multi pack OWO. then flash it back with OXM multi pack, and it should switch to some generic csc, then if you instert your sim card it should ask you if you want to customize your phone to the inserted sim card and it will change your csc to the one you want.
Can't change the CSC of XSG
Hi all
Anyone need call recording option, flash Indonesia firmware (XID)
Or Chinese stock ROM.

Question A525F (4G) native call recording

Hi,
I have A52 4G (A525F) with OLM (XME) firmware and would like to enable native call recording.
From reading Samsung forums I understand that ILO (Israel), THL (Thailand) and XID (Indonesia) CSC would allow native call recording.
The problem is that unlike for S20 etc, for A52 none of those CSC is included in OXM firmware, ILO is OJM and others are OLM, so it looks if I flash OXM firmware for A52 I would get nothing.
I don't care to pay for some credits with samkey, but the question is if samkey can set ILO CSC for OJM, not OXM firmware and if this would give me native call recording?
Or the only way available is to unlock the boot loader and root A52?
Really appreciate your help!
Thanks much.
a52b52 said:
Hi,
I have A52 4G (A525F) with OLM (XME) firmware and would like to enable native call recording.
From reading Samsung forums I understand that ILO (Israel), THL (Thailand) and XID (Indonesia) CSC would allow native call recording.
The problem is that unlike for S20 etc, for A52 none of those CSC is included in OXM firmware, ILO is OJM and others are OLM, so it looks if I flash OXM firmware for A52 I would get nothing.
I don't care to pay for some credits with samkey, but the question is if samkey can set ILO CSC for OJM, not OXM firmware and if this would give me native call recording?
Or the only way available is to unlock the boot loader and root A52?
Really appreciate your help!
Thanks much.
Click to expand...
Click to collapse
If your bootloader is unlocked, you can flash another region's/country's firmware (with Odin). But changing to another CSC will force you to do a factory reset/wipe data.
Are you sure about native call recording for those CSC firmware versions?
I am on DBT (unlocked/unbranded German), and this does not have call recording.
On my previous Samsung phones (S9, S9 Plus, A50 and A51) I got a built-in Call Recording without any problems so I switched CSC to XXV. It was enough to flash Home CSC from Vietnam, and there was no need to reset to factory settings.
On my new A52, which had all the EUX CSC tags, that way doesn’t work.
I tried to flash only part of the XXV and THL firmware, and then the whole firmware and I couldn't get the built-in Call Recording.
I think the problem is that I download the XXV (Vietnam) or THL (Thailand) firmware, and after flashing it says: XME.
This should be addressed, so a way would be found to get a built-in Call Recorder.
EDIT:
I finally managed to get a built-in Call Recording. I flashed the INS (India) firmware, with Home CSC, so I didn't lose any data. All together it lasted 5 minutes and now Call Recording is working ...
My original CSC was EUX,EUX,EUX,EUX, now is: INS,INS,INS, EUX
darko150 said:
On my previous Samsung phones (S9, S9 Plus, A50 and A51) I got a built-in Call Recording without any problems so I switched CSC to XXV. It was enough to flash Home CSC from Vietnam, and there was no need to reset to factory settings.
On my new A52, which had all the EUX CSC tags, that way doesn’t work.
I tried to flash only part of the XXV and THL firmware, and then the whole firmware and I couldn't get the built-in Call Recording.
I think the problem is that I download the XXV (Vietnam) or THL (Thailand) firmware, and after flashing it says: XME.
This should be addressed, so a way would be found to get a built-in Call Recorder.
EDIT:
I finally managed to get a built-in Call Recording. I flashed the INS (India) firmware, with Home CSC, so I didn't lose any data. All together it lasted 5 minutes and now Call Recording is working ...
My original CSC was EUX,EUX,EUX,EUX, now is: INS,INS,INS, EUX
Click to expand...
Click to collapse
Please explain a bit. Do you mean that you flashed :-
1) download and flashed INS firmware with INS CSC
OR
2) download INS firmware and EUX firmware then flashed INS firmware with EUX CSC
i'm sure many still wondering how to do this
thanks in advance
conis said:
Please explain a bit. Do you mean that you flashed :-
1) download and flashed INS firmware with INS CSC
OR
2) download INS firmware and EUX firmware then flashed INS firmware with EUX CSC
i'm sure many still wondering how to do this
thanks in advance
Click to expand...
Click to collapse
I flashed the complete latest INS firmware via Odin. I put HOME CSC, so as not to lose all my data and applications.
The flashing ended in a few minutes, the cell phone restarted and everything was as before ... it offered me several apps from India, but I refused. If not, they can be uninstalled later.
I live in Europe, I have Croatian SIM card... no problem.
Updates come to me normally and regularly, there have been 2 since the flash.
In the Phone application, in Settings, you can select Call recording
I just noticed that the XFE firmware also doesn't have call recording. My previous phone had it with the EGY firmware. Strange, why wouldn't it just be enabled by default?
darko150 said:
I flashed the complete latest INS firmware via Odin. I put HOME CSC, so as not to lose all my data and applications.
The flashing ended in a few minutes, the cell phone restarted and everything was as before ... it offered me several apps from India, but I refused. If not, they can be uninstalled later.
I live in Europe, I have Croatian SIM card... no problem.
Updates come to me normally and regularly, there have been 2 since the flash.
In the Phone application, in Settings, you can select Call recording
Click to expand...
Click to collapse
your method works !! i flashed all the files in INS Firmware except for CSC i put HOME CSC (included in INS firmware too)
now my firmware is INS INS INS XME (Look inside About Phone > Software Info)
darko150 said:
On my previous Samsung phones (S9, S9 Plus, A50 and A51) I got a built-in Call Recording without any problems so I switched CSC to XXV. It was enough to flash Home CSC from Vietnam, and there was no need to reset to factory settings.
On my new A52, which had all the EUX CSC tags, that way doesn’t work.
I tried to flash only part of the XXV and THL firmware, and then the whole firmware and I couldn't get the built-in Call Recording.
I think the problem is that I download the XXV (Vietnam) or THL (Thailand) firmware, and after flashing it says: XME.
This should be addressed, so a way would be found to get a built-in Call Recorder.
EDIT:
I finally managed to get a built-in Call Recording. I flashed the INS (India) firmware, with Home CSC, so I didn't lose any data. All together it lasted 5 minutes and now Call Recording is working ...
My original CSC was EUX,EUX,EUX,EUX, now is: INS,INS,INS, EUX
Click to expand...
Click to collapse
Could you please and please take me through the steps in activating the native call recording on my Samsung A32 without losing my files. I'm disappointed Samsung didn't make this common feature available on their latest phones. Please help me.
Sorry, my English is bad for detailed instructions...
Is it possible to flash Home CSC alone in Odin?
Yes.
I now have all EUX and only Home CSC India (IND).
Everything works, I have a Call Recorder and I haven't lost any data when flashing.
You just have to use Home CSC from the same month as everything else (BL, AP, CP) is.
darko150 said:
Yes.
I now have all EUX and only Home CSC India (IND).
Everything works, I have a Call Recorder and I haven't lost any data when flashing.
You just have to use Home CSC from the same month as everything else (BL, AP, CP) is.
Click to expand...
Click to collapse
Ah, so BL, AP & CP must be flashed along with Home CSC then
I'm not sure. It's probably enough to flash only Home Csc, but I haven't tried ... I flashed only home CSC on Galaxy S9 and Galaxy A50 and it worked
Can anyone with the call recording option enabled confirm the value of the following by running adb shell settings get system on computer (or other device)? These are the values I got on my device (call recording option not available in call settings) from adb shell settings list system:
Code:
record_call_storage_setting_value=0
record_calls_automatically_on_off=0
record_calls_automatically_type=0
record_calls_notification_on_off=1
for eg, to get the values for the first one, type adb shell settings get system record_call_storage_setting_value (after enabling USB debugging and connecting device to adb of course). Or conversely, do adb shell settings list system to get all the values (can also rerun replacing system with secure then global to get other values).
darko150 said:
I'm not sure. It's probably enough to flash only Home Csc, but I haven't tried ... I flashed only home CSC on Galaxy S9 and Galaxy A50 and it worked
Click to expand...
Click to collapse
So I tried it and can confirm that simply flashing the Home CSC file alone in Odin for a different region but the same software version installed on the device changes the CSC (as expected), no data loss and I was able to get call recording option too. Flashed INS Home CSC over XME for the record. Just a couple notifications on restart asking to install new apps.
The only issue with the Indian firmware is that it might come with a bit more bloatware than other country's firmware. Don't know for sure though.
Call recording works with vowifi enabled if you flash indian rom?
Is vowifi available with indian rom and european peoviders (especially interested at vodafone or cosmote)
pdionisis said:
Call recording works with vowifi enabled if you flash indian rom?
Is vowifi available with indian rom and european peoviders (especially interested at vodafone or cosmote)
Click to expand...
Click to collapse
Please update
As far as I know only Xiaomi with special ROM supports vowifi recording. This is why I abandonded samsung and went to Xiaomi .
At my Xiaomi with https://xiaomi.eu/community/ ROM it works.
Sorry Samsung you don't listen to your customers for years...
automatisms said:
Ah, so BL, AP & CP must be flashed along with Home CSC then
Click to expand...
Click to collapse
Nope! Flash only the Home CSC.

Question No provider update (CSC)

Hello everyone,
I live in France and I have a problem. The CSC of my SM-G996B is blocked on EUX so I don't have the firmware update and the Samsung members don't work. I have my sim card in the phone but no update to XEF is proposed to me (even after complete reset and multiple restarts).I have my sim card in the phone but no update to XEF is offered (even after a complete reset and multiple reboots). Does anyone have a solution to force the update of my csc or simply to make the update of the CSC appear because no provider update page for 1 month ? I have to update each time via Odin (for example I just switched to One UI 4.1 with march patches XEF yesterday) taking the XEF fw but since it's multi csc it makes the update without switching to XEF.
Yhank you in advance
Only way is to use Samkey, buy a few points (it isn't free) and change CSC that way. I did it on mine (with points from eBay, not recommended as it might get your phone blacklisted on Samkey) which was TMobile locked but now runs PHN (unlocked Netherlands) fine with all Vodafone services working, volte/vowifi and I get Vodafone software updates over ota as well.

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