Develop Bugs

Galaxy S9 multi CSC problem

Hi guys,
I need your help: I get a Galaxy S9 with active CSC set in SMP (it is an unknown version because it's a sample).
I flashed a multi CSC firmware SM-G960F because I need an ITV (Italy) CSC on it (I want OTA and also Samsung Pay Service).
I don't know why, but when I flash the CSC it set automatically on Germany/DE Status with no chance to change it. The Active CSC remains SMP and CSC Status sets into Germany/DE.
I'm sure I've downloaded from Updato the ITV version of the firmware.
In the past years it was very simple because it need only the correct firmware of your country region to solve the problem. But now with this damn Multi CSC it is impossible!
I tried many ways and guides found here but no one solved the problem.
I wanna change it without rooting the device.
Any suggestions?
Thank you so much in advance

iorya984 said:
Hi guys,
I need your help: I get a Galaxy S9 with active CSC set in SMP (it is an unknown version because it's a sample).
I flashed a multi CSC firmware SM-G960F because I need an ITV (Italy) CSC on it (I want OTA and also Samsung Pay Service).
I don't know why, but when I flash the CSC it set automatically on Germany/DE Status with no chance to change it. The Active CSC remains SMP and CSC Status sets into Germany/DE.
I'm sure I've downloaded from Updato the ITV version of the firmware.
In the past years it was very simple because it need only the correct firmware of your country region to solve the problem. But now with this damn Multi CSC it is impossible!
I tried many ways and guides found here but no one solved the problem.
I wanna change it without rooting the device.
Any suggestions?
Thank you so much in advance
Click to expand...
Click to collapse
Apparently it's impossible to get around it because of this multi CSC no matter what firmware you flash it will not get rid of the carrier firmware on the phone.

qualcomm 9650ds, flashed a multi csc firmware, a window popped up:
SIM card change Restart your phone to configure the functions compatible with your new SIM card. This will reset the phone to its default settings and delete all data, including files and downloaded applications. NOW NO RESTAB. AND RESTART
After restarting, the correct csc has been read. (probably has something to do with the Sim card)
PS: if chosed now no, the 4g signal bar showed LTE; if yes, the bar showed 4g
Click to expand...
Click to collapse
Click to expand...
Click to collapse

kevinfan1990 said:
qualcomm 9650ds, flashed a multi csc firmware, a window popped up:
SIM card change Restart your phone to configure the functions compatible with your new SIM card. This will reset the phone to its default settings and delete all data, including files and downloaded applications. NOW NO RESTAB. AND RESTART
After restarting, the correct csc has been read. (probably has something to do with the Sim card)
PS: if chosed now no, the 4g signal bar showed LTE; if yes, the bar showed 4g
Click to expand...
Click to collapse
For the SM-G9650DS, would you mind sharing which multi-csc firmware did you use exactly? which CSC are you on?

Exynos S9 locked itself to a carrier?

Hey all,
I was given an S9 (Exynos version, unlocked, SM-960F/DS) that had TWRP installed on it, but was stuck in a boot loop. After messing with it for a while, I stuck it in a drawer and forgot about it until recently, when I pulled it out and decided to just restore it to stock. I downloaded a ROM for that specific model from this site ( https://forum.xda-developers.com/galaxy-s9/how-to/official-firmware-thread-regions-t3765015 ) and flashed it using Odin. This got the device to boot fine to the setup, but it defaulted to German, and rejected any SIM I put in it, even though the phone was originally unlocked. So my question is, now how do I remove the SIM lock again? I'm guessing I'll first have to wait the 7 days for the OEM unlock cooldown to elapse again so I can reinstall TWRP?

tattar8 said:
Hey all,
I was given an S9 (Exynos version, unlocked, SM-960F/DS) that had TWRP installed on it, but was stuck in a boot loop. After messing with it for a while, I stuck it in a drawer and forgot about it until recently, when I pulled it out and decided to just restore it to stock. I downloaded a ROM for that specific model from this site ( https://forum.xda-developers.com/galaxy-s9/how-to/official-firmware-thread-regions-t3765015 ) and flashed it using Odin. This got the device to boot fine to the setup, but it defaulted to German, and rejected any SIM I put in it, even though the phone was originally unlocked. So my question is, now how do I remove the SIM lock again? I'm guessing I'll first have to wait the 7 days for the OEM unlock cooldown to elapse again so I can reinstall TWRP?
Click to expand...
Click to collapse
TWRP/Root/Custom has nothing to do with SIM locks, you'd need a sim unlocking service for that

*Detection* said:
TWRP/Root/Custom has nothing to do with SIM locks, you'd need a sim unlocking service for that
Click to expand...
Click to collapse
Then why would the phone start demanding a PUK for any SIM I insert into it after flashing, when it didn't before? The SIMs work on any other phone I try them in.

tattar8 said:
Then why would the phone start demanding a PUK for any SIM I insert into it after flashing, when it didn't before? The SIMs work on any other phone I try them in.
Click to expand...
Click to collapse
Because certain SIM unlocking services depend on you not wiping the phone in order to keep the unlock
You'll need to unlock it again using a paid service

*Detection* said:
Because certain SIM unlocking services depend on you not wiping the phone in order to keep the unlock
You'll need to unlock it again using a paid service
Click to expand...
Click to collapse
The phone was never locked to a carrier -- it was purchased sealed, factory unlocked.

tattar8 said:
The phone was never locked to a carrier -- it was purchased sealed, factory unlocked.
Click to expand...
Click to collapse
In that case check it has not been IMEI blacklisted due to non payment of contract or reported stolen, you state in your OP it was given to you
If it is IMEI blocked there's nothing XDA can do to help you

*Detection* said:
In that case check it has not been IMEI blacklisted due to non payment of contract or reported stolen, you state in your OP it was given to you
If it is IMEI blocked there's nothing XDA can do to help you
Click to expand...
Click to collapse
What I meant by that was that a friend of mine handed it to me to try to fix after he messed with it in TWRP, getting it stuck bootlooping in the process. He had bought it factory unlocked. I checked the IMEI, it's clean. It's demanding PUKs for any SIM I put in it, even though those SIMs work in other phones; I tried a Ting SIM and a Cricket SIM.

tattar8 said:
What I meant by that was that a friend of mine handed it to me to try to fix after he messed with it in TWRP, getting it stuck bootlooping in the process. He had bought it factory unlocked. I checked the IMEI, it's clean. It's demanding PUKs for any SIM I put in it, even though those SIMs work in other phones; I tried a Ting SIM and a Cricket SIM.
Click to expand...
Click to collapse
Well the only thing I can think is to flash a stock firmware for the region you are in, pick a carrier firmware to force the CSC change, Multi-CSC that contains Germany will default back to that if that is what the phone's original CSC was, but I doubt CSC is causing this
O2U CSC (United Kingdom) for G960F is a single CSC, flash it using CSC and not HOME_CSC along with the other 3 sections
But it seems to me this was not originally a factory unlocked handset, it was unlocked by an unlocking service and sold as one
If that doesn't work, pay for an unlocking service

*Detection* said:
Well the only thing I can think is to flash a stock firmware for the region you are in, pick a carrier firmware to force the CSC change, Multi-CSC that contains Germany will default back to that if that is what the phone's original CSC was, but I doubt CSC is causing this
O2U CSC (United Kingdom) for G960F is a single CSC, flash it using CSC and not HOME_CSC along with the other 3 sections
But it seems to me this was not originally a factory unlocked handset, it was unlocked by an unlocking service and sold as one
If that doesn't work, pay for an unlocking service
Click to expand...
Click to collapse
Is there a way I can find out what carrier the phone thinks it's locked to, or would I just have to get SIM cards from around the world and try them?
Can I do this without enabling OEM Unlock (so without letting the phone run for 7 days)?

tattar8 said:
Is there a way I can find out what carrier the phone thinks it's locked to, or would I just have to get SIM cards from around the world and try them?
Can I do this without enabling OEM Unlock (so without letting the phone run for 7 days)?
Click to expand...
Click to collapse
Samsung Phone INFO will tell you the current CSC, but if it defaulted to German either you flashed a German firmware or that is the default CSC
OEM unlock is only needed for custom
Flashing a Multi-CSC ROM such as BTU for United Kingdom will have the greatest chance of it defaulting to it's original CSC

I used that app, and it indeed says the phone's CSC is German, Deutsche Telekom from what I could tell. I tried flashing a number of different FW packages (including the UK and Singapore ones) but it still defaulted to German each time.
I tried going to their unlock page and entering the IMEI, but they have no record of it being sold by them.

tattar8 said:
I used that app, and it indeed says the phone's CSC is German, Deutsche Telekom from what I could tell. I tried flashing a number of different FW packages (including the UK and Singapore ones) but it still defaulted to German each time.
I tried going to their unlock page and entering the IMEI, but they have no record of it being sold by them.
Click to expand...
Click to collapse
Like I said, try flashing a carrier branded firmware like O2U, it cannot default to German if that CSC is not included
Flash using CSC and not HOME_CSC

Sim lock is on its own secure enclave chip, so if this was truly Sim unlocked then it isn't even possible to "relock". Either was unlocked in an unreputable way, or is IMEI blocked as mentioned before.

So I just got time to re-visit this project. I flashed O2U firmware, and it defaulted to English and shows the corresponding CSC. The phone is still locked, and I checked a bunch of IMEI blacklist checkers and each one comes back clean. At this point I accept that the phone is actually locked by a carrier, so I need to instead figure out how to get it unlocked, and to do that I need to figure out what carrier it's locked to. Like I said earlier, I tried entering the IMEI into Deutsche Telekom's unlocking page, and they have no record of them having locked that phone. So how would I go about figuring out what carrier it's locked to? If that information is on its own secure enclave chip, is there any way to read it?

Afaik german providers are forbidden by law to simlock phones for several years already. Problem must be somewhere else.

Try entering the PUK of any SIM if that's what's requested. It should be on the full size SIM, else contact your mobile network operator.

CSC Change is still possible?

Hey Guys,
Just wanted to check whether any working methods are around to change the CSC of a Note 10+
Couldn't find any guides apart from the ones which are in Note 9 Sections.
Any support on this is much appreciated!

JazonX said:
Hey Guys,
Just wanted to check whether any working methods are around to change the CSC of a Note 10+
Couldn't find any guides apart from the ones which are in Note 9 Sections.
Any support on this is much appreciated!
Click to expand...
Click to collapse
Im also looking for a solution for this. SamKey's paid service is apparently supporting this but im unsure of the method their software uses and its a paid service. Users in Australia (like me) are having issues with RCS services through Telstra (TEL) because the Open Variant bought direct from Samsung not having the correct CSC. Some users have reported changing the CSC through SamKey successfully.
I have tried flashing with Telstra firmware but no luck.

maeneak said:
Im also looking for a solution for this. SamKey's paid service is apparently supporting this but im unsure of the method their software uses and its a paid service. Users in Australia (like me) are having issues with RCS services through Telstra (TEL) because the Open Variant bought direct from Samsung not having the correct CSC. Some users have reported changing the CSC through SamKey successfully.
I have tried flashing with Telstra firmware but no luck.
Click to expand...
Click to collapse
Paid Service?
Damn... We are also headed towards a Huawei Future now?

JazonX said:
Hey Guys,
Just wanted to check whether any working methods are around to change the CSC of a Note 10+
Couldn't find any guides apart from the ones which are in Note 9 Sections.
Any support on this is much appreciated!
Click to expand...
Click to collapse
Yes I have changed my csc on my note 10+ unlocked by *#272*imei#

Learning0876 said:
Yes I have changed my csc on my note 10+ unlocked by *#272*imei#
Click to expand...
Click to collapse
i do this didn't work which rom you are

maeneak said:
Some users have reported changing the CSC through SamKey successfully.
Click to expand...
Click to collapse
Yes, the only one work for me. 976B

maeneak said:
Im also looking for a solution for this. SamKey's paid service is apparently supporting this but im unsure of the method their software uses and its a paid service. Users in Australia (like me) are having issues with RCS services through Telstra (TEL) because the Open Variant bought direct from Samsung not having the correct CSC. Some users have reported changing the CSC through SamKey successfully.
I have tried flashing with Telstra firmware but no luck.
Click to expand...
Click to collapse
I initially did *#272*IMEI# and was able to switch between CSC. When I switched to XAA, I was stuck and could not able to use the *#272*IMEI# anymore.. So I had XAA/XAA/ATT.. I saw many were stuck.
Found a solution that worked for me is as follows. Try at your own risk.
Downloaded the tool from
https://www.mysterious-dev.com/2020/05/changecsc-all-samsung-free-tool-android.html
and downloaded the ChangeCSC Software tool.. . watched the video couple of times.. The process lets you install custom THEME.. I was getting "Update" "Delete" and "Buy" ..
What did was
install another random theme
then went back to the program and clicked change CSC again
this time when I choose the custom theme pack, I saw the "Try now".. after that I followed the instruction to about phone->legal and clicked on CHANGE Carrier Android 10 and VOILA!!! I got that CSC change page.. I saw XAA was selected and I changed to TMB... after that "Sales& Network Code Change" and clicked ok.. .The phone restarted and saw the T-Mobile logo!!!!
I even tried the *#272*IMEI# and this time it worked and showed me the CSC screen!!!
Hope this helps anyone who is stuck...My phone now says TMB/TMB/ATT!!!

visualpro said:
I initially did *#272*IMEI# and was able to switch between CSC. When I switched to XAA, I was stuck and could not able to use the *#272*IMEI# anymore.. So I had XAA/XAA/ATT.. I saw many were stuck.
Found a solution that worked for me is as follows. Try at your own risk.
Downloaded the tool from
https://www.mysterious-dev.com/2020/05/changecsc-all-samsung-free-tool-android.html
and downloaded the ChangeCSC Software tool.. . watched the video couple of times.. The process lets you install custom THEME.. I was getting "Update" "Delete" and "Buy" ..
What did was
install another random theme
then went back to the program and clicked change CSC again
this time when I choose the custom theme pack, I saw the "Try now".. after that I followed the instruction to about phone->legal and clicked on CHANGE Carrier Android 10 and VOILA!!! I got that CSC change page.. I saw XAA was selected and I changed to TMB... after that "Sales& Network Code Change" and clicked ok.. .The phone restarted and saw the T-Mobile logo!!!!
I even tried the *#272*IMEI# and this time it worked and showed me the CSC screen!!!
Hope this helps anyone who is stuck...My phone now says TMB/TMB/ATT!!!
Click to expand...
Click to collapse
Did this method wipe your data and factory reset your phone?

alireza_simkesh said:
Did this method wipe your data and factory reset your phone?
Click to expand...
Click to collapse
Hello,
Prior to doing the process. I used smartswitch and backed up my phone completely.. I also did factory reset the phone.. *** Since I was going to use a new method/tool, I was not sure so wanted to make sure it does not interfere with any existing account/app on the phone. Once I was able to get to the CSC screen and changed to TMB, I went back again to make sure do a factory wipe and start complete fresh out. Hope this helps. Good luck!

visualpro said:
Hello,
Prior to doing the process. I used smartswitch and backed up my phone completely.. I also did factory reset the phone.. *** Since I was going to use a new method/tool, I was not sure so wanted to make sure it does not interfere with any existing account/app on the phone. Once I was able to get to the CSC screen and changed to TMB, I went back again to make sure do a factory wipe and start complete fresh out. Hope this helps. Good luck!
Click to expand...
Click to collapse
Thanks, but I am wondering if the tool wipes out the data on the phone?
The Mysterious Dev tool that you mentioned, when the tool was changing the CSC, did the tool factory reset your phone and wipe it?

JazonX said:
Hey Guys,
Just wanted to check whether any working methods are around to change the CSC of a Note 10+
Couldn't find any guides apart from the ones which are in Note 9 Sections.
Any support on this is much appreciated!
Click to expand...
Click to collapse
alireza_simkesh said:
Thanks, but I am wondering if the tool wipes out the data on the phone?
The Mysterious Dev tool that you mentioned, when the tool was changing the CSC, did the tool factory reset your phone and wipe it?
Click to expand...
Click to collapse
hmm.. don't recall if it wiped.. I already had T-Mobile sim inside.. so when I saw the CSC selection page and as soon I choose TMB it restarted and came with T-Mobile splash Page, at that point I know it worked, so before even finishing up the boot process, I rebooted in recovery and did the factory reset

alireza_simkesh said:
Thanks, but I am wondering if the tool wipes out the data on the phone?
The Mysterious Dev tool that you mentioned, when the tool was changing the CSC, did the tool factory reset your phone and wipe it?
Click to expand...
Click to collapse
I had to do the CSC changing today and it simply rebooted and displayed the new CSC logo. It was with AT&T and when I change it to TMB. I get the T-Mobile boot logo.. I was able to get back in to the device without loosing any data.. The CSC showed TMB/TMB/TMB.. But I noticed the ringer/notifications sound still remained the AT&T settings. So to answer your initial question, my phone didn't get wiped out when switching the CSC.
Thx

visualpro said:
I had to do the CSC changing today and it simply rebooted and displayed the new CSC logo. It was with AT&T and when I change it to TMB. I get the T-Mobile boot logo.. I was able to get back in to the device without loosing any data.. The CSC showed TMB/TMB/TMB.. But I noticed the ringer/notifications sound still remained the AT&T settings. So to answer your initial question, my phone didn't get wiped out when switching the CSC.
Thx
Click to expand...
Click to collapse
Thanks.
After changing your CSC to TMB, are you getting TMB updates (OTA) or ATT updates?

alireza_simkesh said:
Thanks.
After changing your CSC to TMB, are you getting TMB updates (OTA) or ATT updates?
Click to expand...
Click to collapse
After switching to TMB.. I have also wiped out and installed T-Mobile firmware via ODIN.. Getting all TMB OTA updates.

Learning0876 said:
Yes I have changed my csc on my note 10+ unlocked by *#272*imei#
Click to expand...
Click to collapse
Thank you very much. I was just able to unlock my N976U from tmobile to unlock model. I am also getting LTE finally

JazonX said:
Hey Guys,
Just wanted to check whether any working methods are around to change the CSC of a Note 10+
Couldn't find any guides apart from the ones which are in Note 9 Sections.
Any support on this is much appreciated!
Click to expand...
Click to collapse
I have found *some* Samsung models can still change CSC via firmware flash in Odin by following these pre requisites...
- disable find my phone
- sign out of Google and samsung accounts
- developer mode .... enable oem unlock
- flash a single CSC stock firmware in odin (do not use home-csc)
- phone will be completely wjped but after first boot and running setup, CSC will be change to match new firmware

Have any one tried

dezborders said:
I have found *some* Samsung models can still change CSC via firmware flash in Odin by following these pre requisites...
- disable find my phone
- sign out of Google and samsung accounts
- developer mode .... enable oem unlock
- flash a single CSC stock firmware in odin (do not use home-csc)
- phone will be completely wjped but after first boot and running setup, CSC will be change to match new firmware
Click to expand...
Click to collapse
CSC Change:
https://forum.xda-developers.com/galaxy-s20/how-to/free-csc-change-apk-s20-t4116015
SIMPLY DOWNLOAD GOOGLE PHONE APP , DIALL THIS CODE AND ALL CSC APEAR.
*#*#27262826#*#*
Back up first, Everything on the device will be deleted.
thanks @adeltamimy6

this worked for me changed to btu. but still not being offered one ui beta 3. any ideas do i need certain software on phone too phone is sm- n976b. If so what do i need

Samkey works and costs about $10 (Min 3 tokens and 1 token to change CSC) - done it several time on 3 of my Note10+ to change to Telstra CSC - VOLTE / WIFI Calling etc works afterward, It didnt Wipe either
checkout andtron.com

flashing the unbranded KOO csc on my korean G960N device still shows KTC bloatware

I have a Korean G960N device that has a lot of KT carrier bloatware, so I decided to flash a KOO unbranded Korean firmware, however even after flashing is successful the device still shows KT logo, bloatware, and several KT-related options in the 'Settings' app, as well as KTC in the "about device" option. how do I get rid of this ****.

Coomer91 said:
I have a Korean G960N device that has a lot of KT carrier bloatware, so I decided to flash a KOO unbranded Korean firmware, however even after flashing is successful the device still shows KT logo, bloatware, and several KT-related options in the 'Settings' app, as well as KTC in the "about device" option. how do I get rid of this ****.
Click to expand...
Click to collapse
flash the CSC not the HOME_CSC. The CSC file will factory reset it and remove any remnants of the previous carrier info including bootanimation, splash screen etc etc

Youdoofus said:
flash the CSC not the HOME_CSC. The CSC file will factory reset it and remove any remnants of the previous carrier info including bootanimation, splash screen etc etc
Click to expand...
Click to collapse
I know, and I did, and still shows KTC bloat including logo. I saw other people posting about the problem in other samsung device forums but didn't find an explanation. I wish there was a unified forum for these general samsung issues, so that they'll get the largest amount of attention possible.

Coomer91 said:
I know, and I did, and still shows KTC bloat including logo. I saw other people posting about the problem in other samsung device forums but didn't find an explanation. I wish there was a unified forum for these general samsung issues, so that they'll get the largest amount of attention possible.
Click to expand...
Click to collapse
can you grab a multi csc and flash it without the sim card in it?

Youdoofus said:
can you grab a multi csc and flash it without the sim card in it?
Click to expand...
Click to collapse
lel, I've been trying to flash an international firmware for 6 months now without success, it's always some damn PIT error, tried everything Patched Odin, with PIT file, without PIT file, with NAND erase, without NAND erase, EVERYTHING, and none of it works, and no one on the internet confirmed that flashing an international G960F firmware on a Korean G960N device actually succeeds. just check my post history to see all the posts I made about the issue.

Coomer91 said:
lel, I've been trying to flash an international firmware for 6 months now without success, it's always some damn PIT error, tried everything Patched Odin, with PIT file, without PIT file, with NAND erase, without NAND erase, EVERYTHING, and none of it works, and no one on the internet confirmed that flashing an international G960F firmware on a Korean G960N device actually succeeds. just check my post history to see all the posts I made about the issue.
Click to expand...
Click to collapse
doesnt surprise me that the F firmware worked on a N device at all. Both are Exynos chipsets, so there isnt really a reason for it to not work. 6 months you say? @AthieN have any ideas?

Youdoofus said:
doesnt surprise me that the F firmware worked on a N device at all. Both are Exynos chipsets, so there isnt really a reason for it to not work. 6 months you say? @AthieN have any ideas?
Click to expand...
Click to collapse
Either the firmware being flashed is mislabeled, or it's not truly flashing. I've seen where Odin says it was successful, but not really... That could be a whole different set of reasons why it's not working though.
My suggestion is re-download the firmware, from a trusted source and try again.

i'm having the same issue as the first post , i have a s10e sm-g970n and it's on sk telecom carrier sh*** , it doesn't want to dissapear even by using the KOO firmware (G970NKSU3BSKO) it's driving me crazy ! this was already in KOO firmware before i tried the custom recovery and custom rom and all , now i just want to go STOCK and this isn't willing to install a stock version without sk telesh*** without bloot ... anyone can help me ?

225franc said:
i'm having the same issue as the first post , i have a s10e sm-g970n and it's on sk telecom carrier sh*** , it doesn't want to dissapear even by using the KOO firmware (G970NKSU3BSKO) it's driving me crazy ! this was already in KOO firmware before i tried the custom recovery and custom rom and all , now i just want to go STOCK and this isn't willing to install a stock version without sk telesh*** without bloot ... anyone can help me ?
Click to expand...
Click to collapse
often times the phone is being told what carrier youre on by the sim card, then if the phone has that carriers CSC in its internal database (in the case of multi-CSC firmware sets) the phone will recognize the carrier and then install the carrier specific crap. I use the U1 firmware and dont have any of the carrier junk that it originally came with. I got it on a Cricket offer and very quickly got rid of all the Cricket junk by flashing the U1 firmware

I successfully changed CSC to KOO on my G960N after it was SKT to do that i had to
- root the device
- install phone info app
- use the tool to change csc
You will have a choice of 4 CSCs choose KOO and install
PS : backup data as it will be erased

numpea said:
I successfully changed CSC to KOO on my G960N after it was SKT to do that i had to
- root the device
- install phone info app
- use the tool to change csc
You will have a choice of 4 CSCs choose KOO and install
PS : backup data as it will be erased
Click to expand...
Click to collapse
Thanks again for this help bro , i already forgot about the csc code changing , only thing who were annoying to me were the SKC blootware and bootanimation
i succefully uninstalled the blootware after rooting and using root uninstaller pro , then about the bootanimation i couldn't find any way to change (even by changing files into system/media/ ) , so i just left it
but good thing you gave us the steps , maybe it will help one guy who is willing to change his CSC code

225franc said:
Thanks again for this help bro , i already forgot about the csc code changing , only thing who were annoying to me were the SKC blootware and bootanimation
i succefully uninstalled the blootware after rooting and using root uninstaller pro , then about the bootanimation i couldn't find any way to change (even by changing files into system/media/ ) , so i just left it
but good thing you gave us the steps , maybe it will help one guy who is willing to change his CSC code
Click to expand...
Click to collapse
When you change the csc code to KOO it will be as an european model the bootanimation will normal and the settings page will be as normal as it can be without korean trach

numpea said:
When you change the csc code to KOO it will be as an european model the bootanimation will normal and the settings page will be as normal as it can be without korean trach
Click to expand...
Click to collapse
Will i loose the magisk root if i change the csc code ?
Also can TWRP be installed when Magisk is there ?

225franc said:
Will i loose the magisk root if i change the csc code ?
Also can TWRP be installed when Magisk is there ?
Click to expand...
Click to collapse
Do a backup with twrp when you change csc it will erase data and you will loose magisk all you have to do is go back to recovery and restore the backup ( backup only data )
Twrpcan always be installed with odin with or without magisk

Alright bro , thx again for the help !

Hello everyone. So I have a S20 Ultra SM-G988N. Its a Korean variant with a Snapdragon Chipset. It has the option OEM unlock and all so the device is rooted. I also was able to change my CSC without doing a data wipe...
What I did was go into the root of the phone into /ets/imei/mps_code.dat. I opened that file with text editor. For me it came up empty so I added the text "KOO" with a different text editor because the one provided by my Root Explorer wasn't letting me edit it. Once I added that in I restarted my phone. My phone started up, had the regular Samsung Logo. But if course some of the blostware is there.
My big issue is the phone connects to Korean things as in some apps will say my Region is Korean. For example my Weather widget (Samsung App) would only let me pick location by state, or country. I can't choose the town I live in nor does the app knows my correct location. It would say I'm in Bethpage Korea.
So my question is because the SM-G988N has a Snapdragon Chipset, would I be able to Flash an U1 Variant Home CSC Using Odin? This way I have multiple CSCs which I can then use to debloat and get the phone to be like US Version.

Coomer91 said:
I have a Korean G960N device that has a lot of KT carrier bloatware, so I decided to flash a KOO unbranded Korean firmware, however even after flashing is successful the device still shows KT logo, bloatware, and several KT-related options in the 'Settings' app, as well as KTC in the "about device" option. how do I get rid of this ****.
Click to expand...
Click to collapse
hi do you know where i can download that firmware which shows KT logo i searched everywhere but i couldn't find always shows SKC

numpea said:
I successfully changed CSC to KOO on my G960N after it was SKT to do that i had to
- root the device
- install phone info app
- use the tool to change csc
You will have a choice of 4 CSCs choose KOO and install
PS : backup data as it will be erased
Click to expand...
Click to collapse
Thank you for your share. I did the same process as you, but in the phone info app, when i select "Change CSC" it deliver this message: Try opening secret code... then nothing shows up. I'm glad if you could help
THanks

BChamp said:
Hello everyone. So I have a S20 Ultra SM-G988N. Its a Korean variant with a Snapdragon Chipset. It has the option OEM unlock and all so the device is rooted. I also was able to change my CSC without doing a data wipe...
What I did was go into the root of the phone into /ets/imei/mps_code.dat. I opened that file with text editor. For me it came up empty so I added the text "KOO" with a different text editor because the one provided by my Root Explorer wasn't letting me edit it. Once I added that in I restarted my phone. My phone started up, had the regular Samsung Logo. But if course some of the blostware is there.
My big issue is the phone connects to Korean things as in some apps will say my Region is Korean. For example my Weather widget (Samsung App) would only let me pick location by state, or country. I can't choose the town I live in nor does the app knows my correct location. It would say I'm in Bethpage Korea.
So my question is because the SM-G988N has a Snapdragon Chipset, would I be able to Flash an U1 Variant Home CSC Using Odin? This way I have multiple CSCs which I can then use to debloat and get the phone to be like US Version.
Click to expand...
Click to collapse
yes it works, I did the same on an S20FE Korean version, Root + unlock BL needed though.

saoudien07 said:
yes it works, I did the same on an S20FE Korean version, Root + unlock BL needed though.
Click to expand...
Click to collapse
if i want to flash in KOO Flash pack, is it necessary to unlock bootloader and root? Is there any way to be able to root without losing Samsung Knox?

Question Can I change the CSC on A52s 5G, Android 11 via Odin?

Hey all,
- I have a Galaxy A52s 5G (SM-A528B) on which I want to switch the CSC from NEE to XEO.
- Bootloader locked, Knox not tripped, SIM not locked, never rooted - it's brand new, basically.
- It's currently on Android 11, A528BXXS1AUL3, CSC NEE (Nordic Countries, unbranded, multi-CSC)
- *#272*IMEI# does not work, neither does *#*#27262826#*#* in Google Phone and other codes people suggested.
- I want to switch it to CSC XEO (Poland, unbranded, multi-CSC) with Android 12 (downloaded A528BXXU1BUL7 with Frija)
- CSC file name in the firmware package is: CSC_OXM_A528BOXM1BUL7_SCL23159600_VCL23158112_MCL23356846_SQB47563957_VQB47558030_MQB47563919_REV00_user_low_ship_MULTI_CERT.tar.md5
- Can I just flash the downloaded firmware with Odin to set the CSC to XEO, or do I have to use SamKey or Chimera to do so?

Dragoon Aethis said:
Hey all,
- I have a Galaxy A52s 5G (SM-A528B) on which I want to switch the CSC from NEE to XEO.
- Bootloader locked, Knox not tripped, SIM not locked, never rooted - it's brand new, basically.
- It's currently on Android 11, A528BXXS1AUL3, CSC NEE (Nordic Countries, unbranded, multi-CSC)
- *#272*IMEI# does not work, neither does *#*#27262826#*#* in Google Phone and other codes people suggested.
- I want to switch it to CSC XEO (Poland, unbranded, multi-CSC) with Android 12 (downloaded A528BXXU1BUL7 with Frija)
- CSC file name in the firmware package is: CSC_OXM_A528BOXM1BUL7_SCL23159600_VCL23158112_MCL23356846_SQB47563957_VQB47558030_MQB47563919_REV00_user_low_ship_MULTI_CERT.tar.md5
- Can I just flash the downloaded firmware with Odin to set the CSC to XEO, or do I have to use SamKey or Chimera to do so?
Click to expand...
Click to collapse
If you are sure that you typed correctly the first IMEI number, at least the code worked to can see the list of available CSCs to know if that CSC you are referring is compatible with your device? Knowing that, you can safely switch to that CSC.
Sometimes the list of CSC available can be displayed in the stock recovery screen, or might be that your device can accept multi-CSC.
Also, you can extract the CSC file from your desired firmware, then compress it in tar format and flash it in the CSC slot (this will format your device).
I didn't try this myself in case you can take a look on this, for me worked the code method on other Samsung device https://samsungfirmware.net/change-csc-samsung-galaxy-phones/

I would personally just flash a complete firmware package with the desired CSC downloaded from Frija. I don't really like to have my system on one CSC code whilst the CSC itself has another code.
Have a thorough look online though before trying anything.

SubwayChamp said:
If you are sure that you typed correctly the first IMEI number, at least the code worked to can see the list of available CSCs to know if that CSC you are referring is compatible with your device? Knowing that, you can safely switch to that CSC.
Sometimes the list of CSC available can be displayed in the stock recovery screen, or might be that your device can accept multi-CSC.
Click to expand...
Click to collapse
The dialer does not react to these codes at all - I'm sure the IMEI was correct (both copy-pasted and typed it manually to be sure). The current CSC is OXM NEE, so appears to be multi-CSC.

Dragoon Aethis said:
The dialer does not react to these codes at all - I'm sure the IMEI was correct (both copy-pasted and typed it manually to be sure). The current CSC is OXM NEE, so appears to be multi-CSC.
Click to expand...
Click to collapse
Yes, the OXM has multi-CSC support, you can flash onto the CSC slot the CSC file from your convenient firmware, anyway, you can also flash the entire firmware, if Odin allows it or use a modded Odin in case that it doesn't.

I did install XID (Indonesia) FW a few days ago to get a working call recorder and it worked.
Now my problem is I can't go back to my original CSC. I can download and flash the XTC version but the phone automatically detects and activates XXV which is the Vietnam version.
Now, I still have call recording but there are features that I'm missing like RCS and Caller ID.

i just tried to flash a BTU rom on a Galaxy A52s running the Romanian ROM/EUX rom.
i done this through ODIN and it changed nothing on my phone after the flash. the phone is still showing ROM in the Service provider software version.
how can i change this phone over to BTU? samsung pay doesn't work on ROM version.

TeamKilo said:
i just tried to flash a BTU rom on a Galaxy A52s running the Romanian ROM/EUX rom.
i done this through ODIN and it changed nothing on my phone after the flash. the phone is still showing ROM in the Service provider software version.
how can i change this phone over to BTU? samsung pay doesn't work on ROM version.
Click to expand...
Click to collapse
Just to clarify, you can't flash a different ROM to bypass a carrier contract, when the contract is still running.
If this is not the case, to switch completely to a different firmware, you'd need to flash the CSC different from the CSC_HOME, within the other files, through Odin, and after that, reboot to stock recovery and do a complete wipe/factory/format.
Some Samsung models allow using hidden/MMI codes to switch to a different CSC (in case you just need only provisioning for a specific area)

SubwayChamp said:
Just to clarify, you can't flash a different ROM to bypass a carrier contract, when the contract is still running.
If this is not the case, to switch completely to a different firmware, you'd need to flash the CSC different from the CSC_HOME, within the other files, through Odin, and after that, reboot to stock recovery and do a complete wipe/factory/format.
Some Samsung models allow using hidden/MMI codes to switch to a different CSC (in case you just need only provisioning for a specific area)
Click to expand...
Click to collapse
i tried the dialler codes, none of them responded.
the phone is is unlocked but Romanian.
ROM/ROM,ROM/EUX/ROM
is there a dummies guide to switch it to BTU?

TeamKilo said:
i tried the dialler codes, none of them responded.
the phone is is unlocked but Romanian.
ROM/ROM,ROM/EUX/ROM
is there a dummies guide to switch it to BTU?
Click to expand...
Click to collapse
First, I recommend investigating which CSCs are allowed (or compatible) with your specific model, sometimes this info is displayed in the recovery screen.
After that you simply have to flash the desired compatible ROM keeping these two steps mentioned; in the CSC box apply the CSC different from the CSC_HOME and then, in recovery stock, wipe everything.
The CSC different from CSC_HOME wipes the APNs and preferences related to code areas, while the other set the news to be used.
It's easy like that, sometimes you should need a patched Odin to apply without issues.

SubwayChamp said:
First, I recommend investigating which CSCs are allowed (or compatible) with your specific model, sometimes this info is displayed in the recovery screen.
After that you simply have to flash the desired compatible ROM keeping these two steps mentioned; in the CSC box apply the CSC different from the CSC_HOME and then, in recovery stock, wipe everything.
The CSC different from CSC_HOME wipes the APNs and preferences related to code areas, while the other set the news to be used.
It's easy like that, sometimes you should need a patched Odin to apply without issues.
Click to expand...
Click to collapse
What do you mean by
"in the CSC box apply the CSC different from the CSC_HOME"
i have to CSC files;
CSC_OXM_A528BOXM1CVC6_MCL23884853_MQB50405254_REV00_user_low_ship_MULTI_CERT.tar.md5
and
HOME_CSC_OXM_A528BOXM1CVC6_MCL23884853_MQB50405254_REV00_user_low_ship_MULTI_CERT.tar.md5
i have used the first file (without HOME in the name). do i need to reset in recovery after flashing this?
also, i didnt find any compatible CSC in the recovery screen, where are they meant to show?

TeamKilo said:
What do you mean by
"in the CSC box apply the CSC different from the CSC_HOME"
i have to CSC files;
CSC_OXM_A528BOXM1CVC6_MCL23884853_MQB50405254_REV00_user_low_ship_MULTI_CERT.tar.md5
and
HOME_CSC_OXM_A528BOXM1CVC6_MCL23884853_MQB50405254_REV00_user_low_ship_MULTI_CERT.tar.md5
i have used the first file (without HOME in the name). do i need to reset in recovery after flashing this?
Click to expand...
Click to collapse
Yes, this is the file you may use. Wiping is recommendable.
TeamKilo said:
also, i didnt find any compatible CSC in the recovery screen, where are they meant to show?
Click to expand...
Click to collapse
Samsung Phone app was good for that, actually is a paid app, probably there’s one app available now that does similar things.
There are some "universal" (or almost) CSC, i.e. OXM, but basically, most of the time, you can switch to another for same region/continent. In some devices this info is displayed in download mode though.

SubwayChamp said:
Yes, this is the file you may use. Wiping is recommendable.
Samsung Phone app was good for that, actually is a paid app, probably there’s one app available now that does similar things.
There are some "universal" (or almost) CSC, i.e. OXM, but basically, most of the time, you can switch to another for same region/continent. In some devices this info is displayed in download mode though.
Click to expand...
Click to collapse
ive flashed the CSC(without HOME) file and then reset/cleared cashe on recovery and still no change to my CSC, still showing as ROM,

TeamKilo said:
ive flashed the CSC(without HOME) file and then reset/cleared cashe on recovery and still no change to my CSC, still showing as ROM,
Click to expand...
Click to collapse
Did you buy a second hand device, that sometime was attached to a carrier?

SubwayChamp said:
Did you buy a second hand device, that sometime was attached to a carrier?
Click to expand...
Click to collapse
I think it's an import, and yes, used like new.

TeamKilo said:
I think it's an import, and yes, used like new.
Click to expand...
Click to collapse
Probably in some moment was a carrier branded, logo displaying to the boot, can show/reveal you something like that, or a clean Samsung logo could be most likely a "really" freed up/non-carrier branded.
Anyway, consider that, even flashing a non-compatible CSC (no matter if it is a complete firmware) won't work.
You have to find out, one that it is compatible, by the normal means.
Unlocking bootloader and rooting it, could give you extra chances, though.

SubwayChamp said:
Probably in some moment was a carrier branded, logo displaying to the boot, can show/reveal you something like that, or a clean Samsung logo could be most likely a "really" freed up/non-carrier branded.
Anyway, consider that, even flashing a non-compatible CSC (no matter if it is a complete firmware) won't work.
You have to find out, one that it is compatible, by the normal means.
Unlocking bootloader and rooting it, could give you extra chances, though.
Click to expand...
Click to collapse
I'm not looking to unlock bootloader and root it, want to avoid that.
I'll might try Samkey to change the csc to BTU

C puedo eliminar apple y logo de operador de mi samsung a52s?
e intentado como lo hice con un s20 fe con *#272*imei# pero no funciono, por odin intente con varios sofware y tampoco lo he logrado
Mod translation via GT:
C can i remove apple and carrier logo from my samsung a52s?
and tried as I did with an s20 fe with * # 272 * imei # but it did not work, by odin I tried with several software and I have not succeeded either

yosmaryvera said:
C puedo eliminar apple y logo de operador de mi samsung a52s?
e intentado como lo hice con un s20 fe con *#272*imei# pero no funciono, por odin intente con varios sofware y tampoco lo he logrado
Mod translation via GT:
C can i remove apple and carrier logo from my samsung a52s?
and tried as I did with an s20 fe with * # 272 * imei # but it did not work, by odin I tried with several software and I have not succeeded either
Click to expand...
Click to collapse
If the device has a logo from a carrier, this means that the device is or was attached to a carrier, so in case, it is still under contract, the device needs to be free up, but if not, then you can get rid of it, by flashing a different firmware.

Arobase40 said:
Whatever the carrier but do you know any carrier using an apple logo with an Android phone ??? ^^
If so it would get into trouble with Apple company... unless the apple word has a different meaning in the original post which I doubt...
That's why I was asking if it was a joke.
Click to expand...
Click to collapse
This is a different approach, I, intentionally avoided, to mention that part. Probably you can find an Apple logo in some obscure Chinese device or who knows, but OP refered to as a Samsung device, so my theory in this part, is that probably the device was rooted previously, IDK.
Just to clarify you are assuming a total different thing, I never thought that the device is under a carrier contract given the fact that it has an apple as logo (IDK if it has an Apple logo, that it is not the same) or not, and even, probably it's a misconception from the OP, and it is a bootanimation and not a bootlogo, and even more, if you pay attention, OP IS saying "can i remove apple and carrier logo from my samsung a52s?" that means that he/she is referring as two different things, OP is mentioning two things and not that the apple logo is the operator or vendor logo, and again, even more, OP is just saying to remove apple? (not Apple) and.....