Database Info

Changing the CSC from DBT to DTM

Hi @ all.
A few of German S6 users who own a T-Mobile contract are a little bit in trouble. Since T-Mobile has activated VoLTE it is only possible to use this feature with a branded S6.
So we tried a lot of things to change the CSC.
Flash the 4 parts firmware first then do factory reset and so one, but finally we get only DDE (this is Congstar without the possibility to activate VoLTE)
My idea.... is there someone who is able to modify the CSC and extract the DDE files so that we flash only DTM.
Thanks in advance.
Here the file name: CSC_DDX_G920FDDX3QOIT_CL5636704_QB6439838_REV02_user_low_ship.tar.md5

No one?

S8+ Change CSC for wifi calling

Hello Everybody ,
Just received an S8+ bought from Amazon.it
I placed my Cosmote Greek SIM before turning the phone on for first time.
The phone has OXM multi CSC firmware installed but for my bad luck , the COS CSC code for my network (Cosmote) is not listed.
Current active CSC code according to phone info app is EUR.
I need to install the ODX multi CSC code firmware which has the COS CSC file for Cosmote.
The reason for changing the CSC from EUR to COS is to enable wifi calling supported from Cosmote network.
Is there any guide to do it without involving root?
Thank you.

Perhaps this thread will help you. https://forum.xda-developers.com/galaxy-s8+/development/utility-flashable-csc-selection-v1-0-0-t3605264

Thanks for your reply but it does not fit in my case.
I do not want to root my phone and the thread mentioned requires root access.

Should I change CSC?

My G930F came with a VDS Nordic carrier CSC. I'm considering flashing a different CSC to gain some customizations without tripping knox. Specifically: removing carrier bloat, Volte, and call recording. Will changing the CSC give me what I want?

RoadToNever said:
My G930F came with a VDS Nordic carrier CSC. I'm considering flashing a different CSC to gain some customizations without tripping knox. Specifically: removing carrier bloat, Volte, and call recording. Will changing the CSC give me what I want?
Click to expand...
Click to collapse
hi mate
Not really , flashing alone the CSC will not de bloat the firmware.
You need a de bloated firmware . check this thread there they show you how to flash a de bloated up to date firmware keep your current CSC and not lose data .....
Changing to a different CSC will enable the option you mention IF the CSC is the same as the carrier that offer those options. If your carrier does not offer those options they will not be available even if you flash a different CSC

unbrand and VoLTE?

Hello, I want unbrand my s10e because my carrier put too much trash on the firmware and want update much faster.
If I flash multi-csc with the same channel for example my s10e it's telcel Mexico and it's OWA channel, flash the multi and then root to change csc to my carrier to have VoLTE and clean firmware? Or in the moment I change csc the trash stuff from my carrier appear?
I don't know too much Samsung csc thing, I know the csc have carrier stuff like apn. I appreciate some help.
Thanks

Question Samkey credits

Anyone has SamKey credits? I'm trying to change my CSC from ZTO to INS to get access to the Indian Beta program, but Samfw didn't work for me. I would be very glad if someone could help me

use SamFw_FRP_Tool_v3.1 for free to change CSC

guimarcio97 said:
Anyone has SamKey credits? I'm trying to change my CSC from ZTO to NIS to get access to the Indian Beta program, but Samfw didn't work for me. I would be very glad if someone could help me
Click to expand...
Click to collapse
There is no NIS CSC, may be you mean INS (India)?
P.S.
Indian is a person form India.

ChoSmile said:
There is no NIS CSC, may be you mean INS (India)?
P.S.
Indian is a person form India.
Click to expand...
Click to collapse
Yes, INS CSC, sorry. And Indian is also a nationality, which is the meaning I tried to use in that sentence

guimarcio97 said:
Yes, INS CSC, sorry. And Indian is also a nationality, which is the meaning I tried to use in that sentence
Click to expand...
Click to collapse
You won't be able to enroll beta by just changing CSC, you also needs SIM from Indian operator.

dr.ketan said:
You won't be able to enroll beta by just changing CSC, you also needs SIM from Indian operator.
Click to expand...
Click to collapse
No India SIM was used (in my experience with SamFW and Samkey, before there was a different method gor CSC change with foreign SIM but it was fix by Samsung August 2019).

guimarcio97 said:
Yes, INS CSC, sorry. And Indian is also a nationality, which is the meaning I tried to use in that sentence
Click to expand...
Click to collapse
Samkey and SamFW use same method, so result will be the same.
I have a similar problem to switch CSC on a friend's A52s to INS.
I deside to tried with ODIN and download desired INS CSC FW via Frija.
Update (even same same FW as currently on device) with BL, AP, CP and HOME_CSC (not CSC_) files, so data will remain.
Then CSC change with SamFW works.
P.S.
No India SIM was used (in my experience with SamFW and Samkey, before there was a different method gor CSC change with foreign SIM but it was fix by Samsung August 2019).
Keep in mind that INS sent 1 sms via every new card, so you can block these numebes in advance via Phone > (dos) > Settings > Block numbers
+919560345888
+918424098931
+919176905802

guimarcio97 said:
Yes, INS CSC, sorry. And Indian is also a nationality, which is the meaning I tried to use in that sentence
Click to expand...
Click to collapse
Samkey and SamFW use same method, so result will be the same.
I have a similar problem to switch CSC on a friend's A52s to INS.
I deside to tried with ODIN and download desired INS CSC FW via Frija.
Update (even same same FW as currently on device) with BL, AP, CP and HOME_CSC (not CSC_) files, so data will remain.
Then CSC change with SamFW works.
P.S.
No India SIM was used (in my experience with SamFW and Samkey, before there was a different method gor CSC change with foreign SIM but it was fix by Samsung August 2019).
Keep in mind that INS sent 1 sms via every new card, so you can block these numebes in advance via Phone > (dos) > Settings > Block numbers
+919560345888
+918424098931
+919176905802

ChoSmile said:
No India SIM was used (in my experience with SamFW and Samkey, before there was a different method gor CSC change with foreign SIM but it was fix by Samsung August 2019).
Click to expand...
Click to collapse
It was not a bug that samsung needed to fix. It is intended to enroll indian users only as update targeted for India
If you read discussion here, you can find, simply changing CSC didn't worked to enroll for beta programme.
Myself from India only so i haven't personally needed to change CSC though.

dr.ketan said:
It was not a bug that samsung needed to fix. It is intended to enroll indian users only as update targeted for India
If you read discussion here, you can find, simply changing CSC didn't worked to enroll for beta programme.
Myself from India only so i haven't personally needed to change CSC though.
Click to expand...
Click to collapse
Ok.
Misunderstanding from my side.
To change CSC - no SIM needed.
To switch to beta program - SIM is needed. Maybe eSIM will be enough to do the trick? $5 https://www.airalo.com/india-esim

ChoSmile said:
Ok.
Misunderstanding from my side.
To change CSC - no SIM needed.
To switch to beta program - SIM is needed. Maybe eSIM will be enough to do the trick? $5 https://www.airalo.com/india-esim
Click to expand...
Click to collapse
Yes, to change CSC No indian SIM needed, nor I said. OP as well I have said specifically about "Enrolling/Accessing Indian Beta Programme"
Sorry, No Idea if e-SIM working or not, haven't read about it so can't confirm.
ChoSmile said:
P.S.
Indian is a person form India.
Click to expand...
Click to collapse
PS : Indian doesn't only mean person from india, It is relating to India, or its people, customs, or languages.

This is what i'm trying to do but in UK. I'm currently on EE on my s22 ultra and I have tried a way to enroll to beta program.
If i change csc to BTU it will change automatically to EUX but not a full change because i still have the operator coding EVR. All i get after reflashing csc is EUX/-/EUX/EVR and no ota updates. From what i have reed Samsung has changed BTU with EUX for faster updates at least for S22 Ultra.

ChoSmile said:
Samkey and SamFW use same method, so result will be the same.
I have a similar problem to switch CSC on a friend's A52s to INS.
I deside to tried with ODIN and download desired INS CSC FW via Frija.
Update (even same same FW as currently on device) with BL, AP, CP and HOME_CSC (not CSC_) files, so data will remain.
Then CSC change with SamFW works.
P.S.
No India SIM was used (in my experience with SamFW and Samkey, before there was a different method gor CSC change with foreign SIM but it was fix by Samsung August 2019).
Keep in mind that INS sent 1 sms via every new card, so you can block these numebes in advance via Phone > (dos) > Settings > Block numbers
+919560345888
+918424098931
+919176905802
Click to expand...
Click to collapse
so when you tried to change csc first using Samfw before flashing these files it did not work? but when you flashed these files and then changed csc it worked ?

Mem_0 said:
so when you tried to change csc first using Samfw before flashing these files it did not work? but when you flashed these files and then changed csc it worked ?
Click to expand...
Click to collapse
On A52s - yes.

ChoSmile said:
On A52s - yes.
Click to expand...
Click to collapse
https://forum.xda-developers.com/t/ktc-to-koo-for-korean-variant.4486127/
this is my issue that I faced with S22U, if you can kindly check that.
some people managed to change csc using samfw with no issues, but could not find anyone who changed the Korean Variant S908N from KTC to KOO.
So do you suggest to try your steps ?

Mem_0 said:
https://forum.xda-developers.com/t/ktc-to-koo-for-korean-variant.4486127/
this is my issue that I faced with S22U, if you can kindly check that.
some people managed to change csc using samfw with no issues, but could not find anyone who changed the Korean Variant S908N from KTC to KOO.
So do you suggest to try your steps ?
Click to expand...
Click to collapse
KTC and KOO are in N model, so you can try.
The firwares are original.
If your device is network locked to sim cards of your oprator - it may not work, but you can flash back to KTC.

ChoSmile said:
KTC and KOO are in N model, so you can try.
The firwares are original.
If your device is network locked to sim cards of your oprator - it may not work, but you can flash back to KTC.
Click to expand...
Click to collapse
no the phone is not locked to a sim.
right now I'm outside of Korea and I'm using the phone with a non Korean provider and it is working fine.
I'm just trying to change csc to be able to remove the ktc bloatware and settings from the device.
Anyways so i will need to use Odin to flash these files : BL, AP, CP and HOME_CSC (not CSC_) files.
then after that the phone will restart then I change csc with samfw?

guimarcio97 said:
Anyone has SamKey credits? I'm trying to change my CSC from ZTO to INS to get access to the Indian Beta program, but Samfw didn't work for me. I would be very glad if someone could help me
Click to expand...
Click to collapse
ZTO here too (Brazil of course). Why don't you install INS firmware under ZTO (using the update from 01/08 that is the same here and HOME_CSC to keep your data unmodified)?
After that, install the beta update through ADB or Alliance. I did that and worked like a charm.

Mem_0 said:
no the phone is not locked to a sim.
right now I'm outside of Korea and I'm using the phone with a non Korean provider and it is working fine.
I'm just trying to change csc to be able to remove the ktc bloatware and settings from the device.
Anyways so i will need to use Odin to flash these files : BL, AP, CP and HOME_CSC (not CSC_) files.
then after that the phone will restart then I change csc with samfw?
Click to expand...
Click to collapse
P.S.
Another friend with A13 (SM-A137F) EUX could not change at beginning.
Flash with EGY and then changed successfully to EGY with call recording.

ChoSmile said:
P.S.
Another friend with A13 (SM-A137F) EUX could not change at beginning.
Flash with EGY and then changed successfully to EGY with call recording.
Click to expand...
Click to collapse
I just checked Samfirm and for A13, EUX and EGY belong to different multiCSC (OXM and OJM)
So it makes sense that u need to flash EGY firmware first to change from OXM to OJM
In his case, all Korean CSCs, including unlocked KOO, belong to OKR multiCSC, and I heard that Samsung specifically blocked CSC changes with Samfw and Samkey in newer phones (S21/S22 etc) for Korea (N model).
:/