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Hi, this is my first post. And im new on this teme of the Multi CSC roms.
I have a question, I get a ROM from SamMobile of my carrier Telcel in Mexico (TCE). I understand that the rom is multi csc, but when I flashed it all the bloatware (that in this case i need, VoLTE is only in my carrier) is from Claro (CHL), and I need it from Telcel. I sent a mail to SamMobile explaining this but they only answered me that the room its ok, the rom is multi CSC.
The CSC version that the system shows me is CHL/CHL/TCE, and I need TCE/TCE/TCE.
Anyone knows what I should do?
From my experience changing firmwares to enable volte, to fully restore csc it's flashing the firmware TCE, download from samfirm app on computer then factory reset from the firmware you have, flash TCE firmware with Odin and this it's the trick you need to have another carrier sim(no telcel) before flash the firmware TCE, wait for boot(don't put an account) when you are on the home screen turn off then enter recovery and factory reset and reboot, here when you swap the Sims, put the telcel sim on it and wait to fully boot and when you see the welcome screen you see a message that say the sim card it's different and need to reset, accept and wait for boot go to settings and check csc and now would be TCE\TCE\TCE
ALUCARD4DEAD said:
From my experience changing firmwares to enable volte, to fully restore csc it's flashing the firmware TCE, download from samfirm app on computer then factory reset from the firmware you have, flash TCE firmware with Odin and this it's the trick you need to have another carrier sim(no telcel) before flash the firmware TCE, wait for boot(don't put an account) when you are on the home screen turn off then enter recovery and factory reset and reboot, here when you swap the Sims, put the telcel sim on it and wait to fully boot and when you see the welcome screen you see a message that say the sim card it's different and need to reset, accept and wait for boot go to settings and check csc and now would be TCE\TCE\TCE
Click to expand...
Click to collapse
Do you really managed to change CSC from one operator (either one) to multi CSC ? And if you do so, can you make a guide for us?
pocos said:
Do you really managed to change CSC from one operator (either one) to multi CSC ? And if you do so, can you make a guide for us?
Click to expand...
Click to collapse
In my quest for fully change the csc without flash twrp and root to lose Knox warranty I ended with some smart guy that say the first two can be changed with flashing firmwares and the last one can only changed with root for that reason if you flash a different firmware region the two changed with the default csc on the multi csc and the last one stay same for example in this case MXO/MXO/TCE and the only way to return all the same it's using other carrier sim card temp until you flash the original firmware and then factory reset and when reboots swap sims putting the original carrier sim card in this particular case telcel
ALUCARD4DEAD said:
From my experience changing firmwares to enable volte, to fully restore csc it's flashing the firmware TCE, download from samfirm app on computer then factory reset from the firmware you have, flash TCE firmware with Odin and this it's the trick you need to have another carrier sim(no telcel) before flash the firmware TCE, wait for boot(don't put an account) when you are on the home screen turn off then enter recovery and factory reset and reboot, here when you swap the Sims, put the telcel sim on it and wait to fully boot and when you see the welcome screen you see a message that say the sim card it's different and need to reset, accept and wait for boot go to settings and check csc and now would be TCE\TCE\TCE
Click to expand...
Click to collapse
Thank you for your answer! But, let me see if I understood.
1- Put a sim from another carrier.
2- Factory Reset.
3- Flash the phone.
4- Turn on, and configure it.
5- Factory reset (again?)
6- Then put the Telcel SIM, before it starts completely
7- And finaly, in the "Welcome" screen, when the phone shows the message of the sim changed, perform another factory reset.
Let me know if I am right,
Right now I don't have another sim, i think that its rare that someone has another carrier But when I have it ill tell you what happenned
pocos said:
Do you really managed to change CSC from one operator (either one) to multi CSC ? And if you do so, can you make a guide for us?
Click to expand...
Click to collapse
al.rale said:
Thank you for your answer! But, let me see if I understood.
1- Put a sim from another carrier.
2- Factory Reset.
3- Flash the phone.
4- Turn on, and configure it.
5- Factory reset (again?)
6- Then put the Telcel SIM, before it starts completely
7- And finaly, in the "Welcome" screen, when the phone shows the message of the sim changed, perform another factory reset.
Let me know if I am right,
Right now I don't have another sim, i think that its rare that someone has another carrier But when I have it ill tell you what happenned
Click to expand...
Click to collapse
Yes basically that's the steps but in the step 5 it's important that you factory reset from recovery
ALUCARD4DEAD said:
Yes basically that's the steps but in the step 5 it's important that you factory reset from recovery
Click to expand...
Click to collapse
Hi,
At step 1 is any SIM or original CSC SIM?
pocos said:
Hi,
At step 1 is any SIM or original CSC SIM?
Click to expand...
Click to collapse
Depends what do you want to do.
In this particular case try to get original CSC TCE/TCE/TCE
He has CH/CH/TCE
If you wanna recover original CSC you need to have another carrier sim on step 1 and when you flash the original firmware go to recovery amd factory reset from there and when you put reboot in the process of boot you swap sims, put the original carrier, firmware sim
ALUCARD4DEAD said:
Depends what do you want to do.
In this particular case try to get original CSC TCE/TCE/TCE
He has CH/CH/TCE
If you wanna recover original CSC you need to have another carrier sim on step 1 and when you flash the original firmware go to recovery amd factory reset from there and when you put reboot in the process of boot you swap sims, put the original carrier, firmware sim
Click to expand...
Click to collapse
Actually I want to move from original CSC to another one!
ALUCARD4DEAD said:
Yes basically that's the steps but in the step 5 it's important that you factory reset from recovery
Click to expand...
Click to collapse
Do you know if the phone must be unlocked? I tried to do it but when I put the other sim, asks me for the carrier unlock code. The phone doesn't show me the message of the sim changed.
I've been some research and I found that Claro is Telcel in the rest of America Latina. Maybe its the reason that shows me Claro.
I tried the CSC secret code *#272*IMEI# and nothing happens, how i know if a ROM would let me do this?
pocos said:
Actually I want to move from original CSC to another one!
Click to expand...
Click to collapse
For that only flashing another firmware if you are from Mexico could you install MXO firmware it's the generic Mexican clean version and that you get MXO/MXO/TCE
The last one remains TCE this only can be change with root.
al.rale said:
Do you know if the phone must be unlocked? I tried to do it but when I put the other sim, asks me for the carrier unlock code. The phone doesn't show me the message of the sim changed.
I've been some research and I found that Claro is Telcel in the rest of America Latina. Maybe its the reason that shows me Claro.
I tried the CSC secret code *#272*IMEI# and nothing happens, how i know if a ROM would let me do this?
Click to expand...
Click to collapse
I don't try it with locked device, I think yes you needed unlocked, and yes claro it's from telcel what you have on your csc?
ALUCARD4DEAD said:
For that only flashing another firmware if you are from Mexico could you install MXO firmware it's the generic Mexican clean version and that you get MXO/MXO/TCE
The last one remains TCE this only can be change with root.
I don't try it with locked device, I think yes you needed unlocked, and yes claro it's from telcel what you have on your csc?
Click to expand...
Click to collapse
Actually I have the MXO/MXO/TCE, i've tried with the TCE rom, but still showing Claro. And these two roms doesn't allow the csc secret code. Don't you know what rom allows the csc secret code? I don't wanna try multiple roms from sammobile the download speeds are frustrating.
al.rale said:
Actually I have the MXO/MXO/TCE, i've tried with the TCE rom, but still showing Claro. And these two roms doesn't allow the csc secret code. Don't you know what rom allows the csc secret code? I don't wanna try multiple roms from sammobile the download speeds are frustrating.
Click to expand...
Click to collapse
Did you find anything? i have the same problem as you... when i dial the code, nothing happens i've tried on the ZTO, MXO and TCE
al.rale said:
Actually I have the MXO/MXO/TCE, i've tried with the TCE rom, but still showing Claro. And these two roms doesn't allow the csc secret code. Don't you know what rom allows the csc secret code? I don't wanna try multiple roms from sammobile the download speeds are frustrating.
Click to expand...
Click to collapse
Try download from samfirm it's more fastest download the full firmware it's pc exe.
Do you try the step mention above? With other sim factory reset from recovery and swap sims, when phone boots tells you the sim change and need to reset and then you get TCE/TCE/TCE
ALUCARD4DEAD said:
Try download from samfirm it's more fastest download the full firmware it's pc exe.
Do you try the step mention above? With other sim factory reset from recovery and swap sims, when phone boots tells you the sim change and need to reset and then you get TCE/TCE/TCE
Click to expand...
Click to collapse
Wow thank you! Im downloading it right now at 2.2 mb/s, compared with 100 kb/s of sammobile.
I tried anything and nothing works, I think that the unique solution is try with another OWA roms, I don't know if Telcel and Claro SIM's have similar identifiers and thats why returns me to Claro. Don't you know if there are roms with the csc menu activated?
TonyGzl92 said:
Did you find anything? i have the same problem as you... when i dial the code, nothing happens i've tried on the ZTO, MXO and TCE
Click to expand...
Click to collapse
Nope, do you think that the carrier lock relates with the problem?
Which sim carrier did you try?
Could I have problems if I try ATT or Movistar roms?
al.rale said:
Nope, do you think that the carrier lock relates with the problem?
Which sim carrier did you try?
Could I have problems if I try ATT or Movistar roms?
Click to expand...
Click to collapse
My phone was originally from att but I unlocked it and now use it on telcel and I want to use VoLTE with telcel. I would like to try the att or movistar firmwares but the problem is that (for what I've read) since the last att update was from like March the bootloader is older (v1) compared to telcel or MXO (v2) so you can't downgrade.
What carrier are you using? And what do you want it to be?
TonyGzl92 said:
My phone was originally from att but I unlocked it and now use it on telcel and I want to use VoLTE with telcel. I would like to try the att or movistar firmwares but the problem is that (for what I've read) since the last att update was from like March the bootloader is older (v1) compared to telcel or MXO (v2) so you can't downgrade.
What carrier are you using? And what do you want it to be?
Click to expand...
Click to collapse
As far I know to get VoLTE on telcel you need to buy phone directly with them, because uses the imei to enable that function
---------- Post added at 11:01 PM ---------- Previous post was at 10:59 PM ----------
al.rale said:
Wow thank you! Im downloading it right now at 2.2 mb/s, compared with 100 kb/s of sammobile.
I tried anything and nothing works, I think that the unique solution is try with another OWA roms, I don't know if Telcel and Claro SIM's have similar identifiers and thats why returns me to Claro. Don't you know if there are roms with the csc menu activated?
Click to expand...
Click to collapse
What firmware you already try?
ALUCARD4DEAD said:
As far I know to get VoLTE on telcel you need to buy phone directly with them, because uses the imei to enable that function
Click to expand...
Click to collapse
Yes, I thought so too, but the thing is I went to Telcel and asked and the told me that my phone SHOULD have VoLTE but I think that may be associated with my phone number, (since I've had that number for a long time), and not with the IMEI
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
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
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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 ?
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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 ****.
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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
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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.
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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.
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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?
Hello to everybody,
I have a Galaxy S9, model SM-G960N and finally the Korean Update to Android 10 arrived, downloaded it from SamMobile (The unbranded version KOO) Flashed it without problems and the phone works as intended. Only it doesn't have KOO as CSC, it has SKC, which has bloatware and it isn't the one I flashed. What gives? Why does it do that, are there any workarounds? Here's what I've tried until now:
Downloaded, and flash numerous times, no result, I don't live in Korea, I don't have a Korean SIM, phone still reports SKC.
Flashing with or without sim card inserted gives the same result.
Can't flash any other CSC, other than Korean ones, Odin spits out an error and it does not even start the flashing process.
Mix and matching different CSC with different firmware's obviously not successful.
Any idea if something can be done about this?
Thank you in advance.
You need to root it and change CSC with phone info app to KOO
numpea said:
You need to root it and change CSC with phone info app to KOO
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Click to collapse
I guess that's the only remaining way, but do you know why it picks SKC instead of KOO, even if the firmware that I'm downloading is KOO.
Korean CSC is a multiCSC even if you download KOO firmware you phone will use SKC that's included in the CSC so there is no different korean csc there's only one that includes the 4 csc codes
i have rooted device but i need multilanguage. ho i can debrand or add orginal languages?
tejanaqkilica said:
Hello to everybody,
I have a Galaxy S9, model SM-G960N and finally the Korean Update to Android 10 arrived, downloaded it from SamMobile (The unbranded version KOO) Flashed it without problems and the phone works as intended. Only it doesn't have KOO as CSC, it has SKC, which has bloatware and it isn't the one I flashed. What gives? Why does it do that, are there any workarounds? Here's what I've tried until now:
Downloaded, and flash numerous times, no result, I don't live in Korea, I don't have a Korean SIM, phone still reports SKC.
Flashing with or without sim card inserted gives the same result.
Can't flash any other CSC, other than Korean ones, Odin spits out an error and it does not even start the flashing process.
Mix and matching different CSC with different firmware's obviously not successful.
Any idea if something can be done about this?
Thank you in advance.
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Click to collapse
i've to face the same thing mine is KTC but it shows SKC. idk what to do after did that always my device is getting overheat
I would appreciate if anyone can point me to the right direction. I have 21FE G990U2 from AT&T, It is unlocked by AT&T.
All I need is working T-Mobile firmware or Samsung (no carrier branding) to flash. I tried multiple versions of U, U1 and U3 firmwares (all matching my current Binary -4) but no success.
I just would like to get rid of ATT bloat. I know I can uninstall it via ADB but I rather have firmware clean of it.
Any suggestion please?
Thanks
So am I right to assume that you are looking for a G990U2 TMB firmware with Binary 4, to flash on a G990U2 AT&T phone?
If so, then you can download it from the below link by clicking on "Download Samfw server" (G990U2OYN4EWC3, April 2023 update):
Download Galaxy S21 FE 5G SM-G990U2 (TMB) G990U2SQS4EWC3 in Samfw - Samsung firmware download
Galaxy S21 FE 5G SM-G990U2 (TMB - United States) G990U2SQS4EWC3 T(Android 13) samsung firmware download all model, lastest, fast update, completely free and fast speed in Samfw.com ✅
samfw.com
or if I am assuming wrong, can you please correct my understanding? As I do not have any practical hands-on experience with the USA models.
Shuhan44 said:
So am I right to assume that you are looking for a G990U2 TMB firmware with Binary 4, to flash on a G990U2 AT&T phone?
If so, then you can download it from the below link directly (G990U2OYN4EWC3, April 2023 update):
https://02-samsung.cloud/v2/IxJCDiMnLh8SLAo5IRtBAzwDMyMyCB4lFzssIDs2ByAzMUEgOzEUQDMQMCMBOyw/LiUzJjIXCDkuJC8/NDseIy8xIQYzOAIlPDAVHRIvMz81CAIkMwsuOB42FA00Nh4LNS8vFjIXLA0NFzE/PAMeOTMADTkDAC4mNBEaMCExQQEhJQUUHjFCMTs4BkIjCyI/Iws8MQEWCDAeCw0xCREHOTQbIyshAD4OIQAGLC44Hiw0ER4OMiUzLDIlDSs8AD4fJhsGOg8HCkA8AywnCRc+Di8LBxAzBy4RDxYpKTwkHjUeBylCJgceKTIXIUAJER4OMi8+AwMSMBsBAzY5LwNBJi8IMAQ4MTQUAQMgLyMsHjM7JDMHLzEjJDgAISk8PxQ9NTggQiYbLyUhJCEpMjsHJzw2KSceFy4QIzEvKw8WIAYhFh4JMjAeLDQsLCM0Gy45IzgGQiMDPB0jJCI/ARYFMCMiExM=
or if I am assuming wrong, can you please correct my understanding? As I do not have any practical hands-on experience with the USA models.
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Click to collapse
You are correct - I need T-Mobile (or carrier free) so I can utilize full carrier settings.
Thanks for the link, however above link gives an error when opening the page.
Nevertheless I will look for TMB firmware with CSC: G990U2OYN4EWC3 and post an update here
Flashed that and still has AT&T boot logo and all the apps
h078 said:
Flashed that and still has AT&T boot logo and all the apps
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Click to collapse
Well, I am sure that you have flashed by a Factory reset (Flashed CSC, not Home CSC in ODIN). The boot logo can be changed by rooting your device, also bloatware apps can be deleted via ADB command without rooting.. but you already have mentioned that you prefer not to proceed with those processes. So I am out of suggestions, sorry.
Just for my knowledge, after flashing the TMB firmware, now your settings> About phone> software information> service provider software version: 2nd line shows as TMB/ TMB/ AT&T?
(Also corrected the download link in my previous comment anyway).
Yes, you are correct i did flash CSC, not home CSC. Then I reflashed w home CSC but software still says ATT/ATT/ATT.
Moreover on Bootloader screen says "carrier ATT" - I have never seen that before on any Samsung phone that I had. I have no clue how did they lock up device that well. As for removing software via ADB that is not a problem, but ATT locks network selection mode so you cant choose between 5G, LTE, 3G etc..
TMobile in US still supports EDGE and sometimes it comes handy - whereas ATT has only LTE and 5G as they re-farmed EDGE and 3G/HSPA frequencies
h078 said:
Yes, you are correct i did flash CSC, not home CSC. Then I reflashed w home CSC but software still says ATT/ATT/ATT.
Moreover on Bootloader screen says "carrier ATT" - I have never seen that before on any Samsung phone that I had. I have no clue how did they lock up device that well. As for removing software via ADB that is not a problem, but ATT locks network selection mode so you cant choose between 5G, LTE, 3G etc..
TMobile in US still supports EDGE and sometimes it comes handy - whereas ATT has only LTE and 5G as they re-farmed EDGE and 3G/HSPA frequencies
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Click to collapse
I do not get why the CSC can never be changed, even after flashing the complete firmware... must be an ATT thing!
Anyway, to change the csc only, there is another very quick & easy method. It takes only 2/3 minutes; no flash or factory reset is required. You have to download and install a small software "SamFW Tool" on your pc/laptop (may need to disable the antivirus during the download/install process). Once done, connect the phone and enable USB debugging mode. Open the software, under the ADB tab, click Change CSC, from the dropdown list select TMB and click Change. The phone will restart and CSC "Should" change to TMB/TMB/ATT.
Here is the download link for the software:
https://www.mediafire.com/file/upaiwadhmstm6js/SamFwToolSetup_v4.6.zip/file
That did the trick. I have T-Mobile CSC now
Thanks a lot
h078 said:
That did the trick. I have T-Mobile CSC now
Thanks a lot
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Click to collapse
Great!
But still, that's only one part of the final solution I think. Your target was to replace the complete firmware from ATT to TMB, right? Since the CSC is now changed to TMB, I think you can give it another try via ODIN to install the TMB firmware now (only if you want). I am not confident that it will work now, but still, one last try should not be much of a hassle.
I think that these multi CSC contain all US carrier customizations....When I changed it to TMB it shows TMB/TMB/ATT and loads bootlogo as well as TMobile apps... I guess it is similar as Blackberry used to be back in the days...Depending which carrier SIM used it loaded proper settings from the firmware...
I have flash my METROPCS G990U2 to G990U3,other sim card work fine,but t mobile sim card does not work ,can someone help me?I already change CSC to xxa,but still no internet,I do have sginal bar