Debranding Samsung Galaxy S20 5G (SM-G981B) phone - Samsung Galaxy S20 / S20+ / S20 Ultra Questions &

Hi All,
I have read that to debrand a Samsung Galaxy S20 phone (mine is SM-G981B) you can't just do a straight flash with Odin using debranded firmware and that you instead need to first change the CSC using SamKey. However my issue is that the CSC for the carrier my phone is currently on (United Kingdom EE) seems to be the same as debranded firmware (United Kingdom BTU). You can see here: sammobile.com/samsung/galaxy-s20/firmware/SM-G981B/BTU they both have the same CSC (G981BOXM1ATCT).
I also came across this guide: samsungsfour.com/tutorials/how-to-install-stock-rom-on-galaxy-s20-s20-plus-s20-ultra-s20-5g.html for debranding, however without any other sources to back it up, I am a bit reluctant to try it out in case it causes any issues.
Any help with this would be greatly appreciated thanks.

Rave7 said:
Hi All,
I have read that to debrand a Samsung Galaxy S20 phone (mine is SM-G981B) you can't just do a straight flash with Odin using debranded firmware and that you instead need to first change the CSC using SamKey. However my issue is that the CSC for the carrier my phone is currently on (United Kingdom EE) seems to be the same as debranded firmware (United Kingdom BTU). You can see here: sammobile.com/samsung/galaxy-s20/firmware/SM-G981B/BTU they both have the same CSC (G981BOXM1ATCT).
I also came across this guide: samsungsfour.com/tutorials/how-to-install-stock-rom-on-galaxy-s20-s20-plus-s20-ultra-s20-5g.html for debranding, however without any other sources to back it up, I am a bit reluctant to try it out in case it causes any issues.
Any help with this would be greatly appreciated thanks.
Click to expand...
Click to collapse
Mate, all you need to do is change the csc to BTU in order to debrand. EVR and BTU csc are part of the same multi csc, however change your csc to BTU if you do not want any carrier bloatware or boot image etc.

So the only way to debrand is to use samkey? There is not a free/not payed alternative?

west2cool said:
Mate, all you need to do is change the csc to BTU in order to debrand. EVR and BTU csc are part of the same multi csc, however change your csc to BTU if you do not want any carrier bloatware or boot image etc.
Click to expand...
Click to collapse
Thank you very much, I'll give that a go.
denzel09 said:
So the only way to debrand is to use samkey? There is not a free/not payed alternative?
Click to expand...
Click to collapse
Denzel09, you can buy a single SamKey credit on eBay for £2.25 just to let you know. Search for SamKey, sort by cheapest and set "Item Location" to Worldwide.

Related

Change CSC without ROOT

Hi
how can i change csc code without root the device?
KingMKH said:
Hi
how can i change csc code without root the device?
Click to expand...
Click to collapse
You have to choose the correct ROM first. So if your phone is SM-A505F you need that ROM. Not recommended to use other ROMs like SM-A505 FN, G etc.
Once you have the correct ROM (must be newer than your current) use Odin 3.13 or newer to flash your phone . before flashing do back up and then remove all accounts!!! Then remove your SIM and memocard and do hard reset. Connect to Odin in download mode and flash. Wait till its completely finished and boot up your phone. 1st boot can take up to 10 minutes, once you see the Start screen insert the SIM card from desired region and let the phone restart again.
My phone for some reason picked up CAC product code (Uzbekistan). Flashed latest ROM inserted my Vodafone SIM and after restart my phone was on BTU (UK unbranded).
is flashing different CSC ROM will trip Knox
I my case this method for FN version did not worked any different way to do it?
Adooni said:
is flashing different CSC ROM will trip Knox
Click to expand...
Click to collapse
No it wont trip knox as long as you are flashing official samsung firmware.
OK I investigate a bit today
looks like I was able to change CSC from ROM to FTM (Freanch Orange) using brand Orange from Poland (OPV) - all was done with JUN patch the same patch level files
I would like to change from ROM to XEO (Poland unbranded) and for this I did not found any way to work
Adooni said:
OK I investigate a bit today
looks like I was able to change CSC from ROM to FTM (Freanch Orange) using brand Orange from Poland (OPV) - all was done with JUN patch the same patch level files
I would like to change from ROM to XEO (Poland unbranded) and for this I did not found any way to work
Click to expand...
Click to collapse
I think that it's somehow let you change the CSC only one time... I recalling that I was able to do it on my A50 and A70 but only one time...
in my case it is more like I can change to branded CSC like orange or T-Mobile ( did this few time) but it not give me Poland as a country
I cannot change to unbranded CSC like XEO - it always show ROM as active CSC (softwanre CSC it is showing XEO) but for example news I have from Romania
Adooni said:
in my case it is more like I can change to branded CSC like orange or T-Mobile ( did this few time) but it not give me Poland as a country
I cannot change to unbranded CSC like XEO - it always show ROM as active CSC (softwanre CSC it is showing XEO) but for example news I have from Romania
Click to expand...
Click to collapse
typically it will remain as whatever sim you have in the phone.. there are tricks u can do.. id search some more as theres many csc related threads.. also make sure that csc u want is actually included on the device already since if it doesnt exist then well you cant use it until u get the right csc..
Rexton270 said:
I think that it's somehow let you change the CSC only one time... I recalling that I was able to do it on my A50 and A70 but only one time...
Click to expand...
Click to collapse
Please how did you change your A70 CSC
Adooni said:
OK I investigate a bit today
looks like I was able to change CSC from ROM to FTM (Freanch Orange) using brand Orange from Poland (OPV) - all was done with JUN patch the same patch level files
I would like to change from ROM to XEO (Poland unbranded) and for this I did not found any way to work
Click to expand...
Click to collapse
Please I want to change my A705FN/DS CSC, please teach me how to do it.
---------- Post added at 01:51 PM ---------- Previous post was at 01:42 PM ----------
Adooni said:
OK I investigate a bit today
looks like I was able to change CSC from ROM to FTM (Freanch Orange) using brand Orange from Poland (OPV) - all was done with JUN patch the same patch level files
I would like to change from ROM to XEO (Poland unbranded) and for this I did not found any way to work
Click to expand...
Click to collapse
I want to change my A705FN/DS CSC, TEACH how to go about it.
jonakwofie13 said:
Please how did you change your A70 CSC
Click to expand...
Click to collapse
You didn't say what region you want. In my case I was after UK (BTU) or Germany (DBT).
Do hard reset (sim and memory card remove). Turn on phone without sim and wait until it says No sim inserted. Insert the sim from region or country you want to have on your phone.
Make sure you have multi CSC ROM. In my case it was ok. Changed from CAC to BTU.
Rexton270 said:
You didn't say what region you want. In my case I was after UK (BTU) or Germany (DBT).
Do hard reset (sim and memory card remove). Turn on phone without sim and wait until it says No sim inserted. Insert the sim from region or country you want to have on your phone.
Make sure you have multi CSC ROM. In my case it was ok. Changed from CAC to BTU.
Click to expand...
Click to collapse
I'm in Africa specifically Ghana. But I don't have LTE only in my network mode so wanted to switch to a different CSC.
jonakwofie13 said:
I'm in Africa specifically Ghana. But I don't have LTE only in my network mode so wanted to switch to a different CSC.
Click to expand...
Click to collapse
There's no LTE/4G only mode. So if this is what you want no need for flashing different ROM.
jonakwofie13 said:
I'm in Africa specifically Ghana. But I don't have LTE only in my network mode so wanted to switch to a different CSC.
Click to expand...
Click to collapse
This from my settings. International model/no branding
Rexton270 said:
This from my settings. International model/no branding
Click to expand...
Click to collapse
Thanks bro
I did not successed in changing CSC from ROM to XEO - I tryied all ways I found in web
Adooni said:
I did not successed in changing CSC from ROM to XEO - I tryied all ways I found in web
Click to expand...
Click to collapse
You need multi CSC ROM. First time boot up without sim and memory card. When boot finished will tell you insert sim. I think Samsung set up phones to allow ONLY one change and only first time...
Rexton270 said:
You need multi CSC ROM. First time boot up without sim and memory card. When boot finished will tell you insert sim. I think Samsung set up phones to allow ONLY one change and only first time...
Click to expand...
Click to collapse
I have same problem. Which multirom rom should I use for my version and where to find it? Im located in Serbia.
Thanks

CSC question

Hey everyone,
I realize that posts regarding CSC are a dime a dozen, I've searched through a lot but this stuff is somehow really tough to piece together. I rarely post because I normally find everything I need but here goes.
I bought my note 10+ in Slovakia from Orange. The phone's CSC is ORS/ORS,ORS/ORS, which I think is part of the OGC multi CSC. I'm guessing ORS stands for Orange Slovakia. However, I'm using a Telekom SIM card. I'm still waiting for my android 10 update, but I've noticed that Android 10 has already come out for the Telekom Note 10+. The CSC in that rom is TMS (which I think stands for Telekom Slovakia), which is a part of the ODX multi CSC . In the past I would just flash an update from another country, but from what I gather, this is somehow... riskier? nowadays.
So my question is, could I lose warranty if I were to flash that TMS rom? Or is there a possibility that it would mess something up? I figure that that's the rom that is as close to mine as possible ? but I'm not sure. Any advice would be much appreciated.
Hi, i have same Note10+ buyed from Orange Slovakia. I flashed Multi-CSC FW ROM (ORX) from samfirm, but CSC is set to default AUT. For change CSC you must buy 2 credits from samkey.

No way to debrand?

I've tried to debrand my phone by flashing open market firmware (XEO, Poland). I downloaded the newest version of Odin, flashed it but now my CSC under settings says OPV/OPV, OPV/EUX/OPV. OPV is my carrier's CSC, I'm wondering what that EUX is. I've looked it up on Google and it seems like I'm not alone, seems like Samsung changed something and older methods no longer work. The question is - will I still receive updates released for my carrier or I'm screwed for good? Phone INFO app says my active CSC is OPV. I'm running S20+ 5G (G986B) Exynos variant.
Same problem here, I've flashed it with XEO POLAND G986BXXU1ATBM firmware using Odin3 v3.14.1_3B_PatcheD, few minutes later it showed "PASS" and nothing changed. Same branded firmware after reboot..
It seems, that many more 'branded' CSCs are now part of Multi-CSC. For me, this is DTM (T-Mobile DE). It osed to not be part of multi-CSC but it is now part of OXM.
This means, that you can not force it anymore, as you already ARE having the exact same firmware with the 'branded' CSC. Just checked, OPV is in deed part of OXM now.
In the Ultra Section is a thread showing the CSCs belonging to OXM: https://forum.xda-developers.com/ga...galaxy-s20-ultra-g988b-firmwares-5g-t4060443/
I have not yet found out / gotten an answer from anybody how to change CSC. Samkey also is not supporting the S20 series ATM - dont know, if this will change.
Monnq said:
I've tried to debrand my phone by flashing open market firmware (XEO, Poland). I downloaded the newest version of Odin, flashed it but now my CSC under settings says OPV/OPV, OPV/EUX/OPV. OPV is my carrier's CSC, I'm wondering what that EUX is. I've looked it up on Google and it seems like I'm not alone, seems like Samsung changed something and older methods no longer work. The question is - will I still receive updates released for my carrier or I'm screwed for good? Phone INFO app says my active CSC is OPV. I'm running S20+ 5G (G986B) Exynos variant.
Click to expand...
Click to collapse
What I have worked out is that when you flash a multi-CSC firmware file you end running the CSC one letter earlier in the alphabet out of the. Available multi-CSC list
E.g. I had a VOD branded S105G and flashed BTU firmware, and ended up with TEL CSC
I also tried flashing BTU on an H3G branded A70 and ended up with EVF CSC
The original branded product CSC also never changes
---------- Post added at 11:32 AM ---------- Previous post was at 11:30 AM ----------
Andrino said:
Same problem here, I've flashed it with XEO POLAND G986BXXU1ATBM firmware using Odin3 v3.14.1_3B_PatcheD, few minutes later it showed "PASS" and nothing changed. Same branded firmware after reboot..
Click to expand...
Click to collapse
Enable Developer mode and set OEM Unlock to ON before trying to change CSC via ODIN Flash
This should not be necessary? Doesn't that trip Knox, despite original Samsung Firmware?
corwin_amber said:
It seems, that many more 'branded' CSCs are now part of Multi-CSC. For me, this is DTM (T-Mobile DE). It osed to not be part of multi-CSC but it is now part of OXM.
This means, that you can not force it anymore, as you already ARE having the exact same firmware with the 'branded' CSC. Just checked, OPV is in deed part of OXM now.
In the Ultra Section is a thread showing the CSCs belonging to OXM: https://forum.xda-developers.com/ga...galaxy-s20-ultra-g988b-firmwares-5g-t4060443/
I have not yet found out / gotten an answer from anybody how to change CSC. Samkey also is not supporting the S20 series ATM - dont know, if this will change.
Click to expand...
Click to collapse
Since now it's part of Multi CSC, does that mean I will receive updates faster? I can see other polish carrier's CSC are listed as single so I assume they are kind of separate firmware, am I right?
Honestly I do not know, if the respective CSC will be getting OTAs at the same time.
However, you can always flash manually with HOME_CSC, that is true.
corwin_amber said:
This should not be necessary? Doesn't that trip Knox, despite original Samsung Firmware?
Click to expand...
Click to collapse
Enable OEM unlock does not trip Knox. As long as you flash official Samsung firmware files in Odin Knox is never tripped
My own personal experience on S10 and above is you cannot flash a different CSC with OEM Unlock disabled
(Flash completes successfully but CSC doesn't change)
When changing from one e.g. branded csc to multi csc with the S10+, this worked fine without enabling oem unlock. Well, anyway. Flashing OXM multi CSC over OXM multi CSC will not change anything, right?
corwin_amber said:
When changing from one e.g. branded csc to multi csc with the S10+, this worked fine without enabling oem unlock. Well, anyway. Flashing OXM multi CSC over OXM multi CSC will not change anything, right?
Click to expand...
Click to collapse
I found that you have to be on a single CSC before flash to multi-CSC and also you don't always end up on the CSC you expected
e.g. Flash BTU on a VOD product and you end up on TEL CSC (one letter in alphabet below VOD) and not on BTU
did everyone succesed DEBRAND ?
i v got s20 ultra OPV(orange) and need XEO (official)
tak, poprzez samkey
Yes, with samkey
@0kti if you have any credits remain let me know please ( I will buy it )
I found link to our android com pl forum , thanks
Nope. Buy on ebay. It's cheap. 3 credits.
Tapatalk - SM-G986B
one credit please, somebody will share ?
raphaelx69 said:
one credit please, somebody will share ?
Click to expand...
Click to collapse
really lmao.. its literally a few bucks... chimera tool works great also but is a mpre expensive subscription but dont gotta kee0 buyin credits

Recommended Firmware for Unbranding a Samsung Galaxy S20+ (SM-G985F)

Hello community!
I recently bought a Samsung Galaxy S20+ (SM-G985F) which is carrier branded and sim locked. I am looking to remove the carrier branding by using a unbranded firmware. I am trying to find an unbranded firmware that will not affect the functionalities of the phone ( VoLTE, VoWiFi etc..) . Would this be done by finding a firmware with same PDA but different CSC?
Current Branded Firmware:
Version G985FXXU3ATG4 / G985FOWA3ATG4 / G985FXXU3ATG4
Product Code: PGU
Would this firmware work?
Product code LUX
PDA G985FXXU3ATG4
CSC G985FOXM3ATG9
Thanks in advance for your help!
@servenaya
if you have a sim card of Guatemala and you want to keep VoLTE, VoWiFi etc.. for this country
install Version PDA G985FXXU3ATG4-CSC G985FOXM3ATG9
and change your CSC to GTO ( with préconfiguration for TIGO_CGU , PCW_PA and Claro_DR )
LUX have only préconfiguration for Luxemburg ( Proximus , POST , Tango , Telenet , Orange B and LUX )
regards
yakapa40 said:
@servenaya
if you have a sim card of Guatemala and you want to keep VoLTE, VoWiFi etc.. for this country
install Version PDA G985FXXU3ATG4-CSC G985FOXM3ATG9
and change your CSC to GTO ( with préconfiguration for TIGO_CGU , PCW_PA and Claro_DR )
LUX have only préconfiguration for Luxemburg ( Proximus , POST , Tango , Telenet , Orange B and LUX )
regards
Click to expand...
Click to collapse
@yakapa40, thank you! This information is very helpful. I do have a Claro Guatemalan sim and even though the carrier does not support VoLTE, or VoWifi, I would like to keep this features in case they implement them in the future. I did find a firmware with the recommended PDA and CSC (Country South East Europe, Product code: SEE, PDA: G985FXXU3ATG4, CSS: G985FOXM3ATG9). Would this firmware work? From what understand, I would have to first flash this firmware, then change de CSC with Samkey to GTO and lastly, factory restore the phone. Is this correct?
Also, would you recommend using Samkey to perform a carrier unlock before changing the CSC or could I do it later on? I read that Samkey only works for phones that dont ask for unlock code. Mine does ask for a code when I insert another carrier's sim.
Thanks in advance for your help!
save all your data
install new firmware
you have a free apk here to change the CSC:
https://forum.xda-developers.com/showpost.php?p=82858645&postcount=37
yakapa40 said:
save all your data
install new firmware
you have a free apk here to change the CSC:
https://forum.xda-developers.com/showpost.php?p=82858645&postcount=37
Click to expand...
Click to collapse
@yakapa40, Thank you once again. Just want to make sure that the firmware mention before is the best one to use? I have attached the software information from my phone. Please let me know your opinion.
yes all is ok with your firmware
PGU:
GTO:
yakapa40 said:
yes all is ok with your firmware
PGU:
GTO:
Click to expand...
Click to collapse
@yakapa40 Thank you for your help. You are extremely knowledgeable on this topic! To be honest, I just realize how little I know about flashing even though I've been doing it since 2012. I feel like I understand firmware flashing less than I did before.
I just have a last question. If I flash the firmware with a CSC NEE, and than do the CSC change to GTO, which CSC will be used for future OTA updates? What I mean is, if there is a new NEE firmware will I get it, or will I have to wait for a new GTO update? Sorry, I am little confused with all of this.
G985F OXM is a multi CSC so if you flash the firmware with a CSC NEE , you will get XEF CSC by default
, and when you change to GTO you will get GTO OTA updates
https://forum.xda-developers.com/galaxy-s20/how-to/s20-g985f-firmwares-t4060279
yakapa40 said:
G985F OXM is a multi CSC so if you flash the firmware with a CSC NEE , you will get XEF CSC by default
, and when you change to GTO you will get GTO OTA updates
https://forum.xda-developers.com/galaxy-s20/how-to/s20-g985f-firmwares-t4060279
Click to expand...
Click to collapse
@yakapa40, I was finally able to flash the phone. I followed the steps and got the GTO CSC and the unbranded firmware working! Thank you for helping me throughout the whole process. The only down side was that I still lost the VoLTE and VoWifi options. When I look at the Sim Card Status menu, the IMS registration Status is "not registered". :crying:

Question How Change CSC Korean Z Fold3 SM-F926N?

I just bought the Z Fold3 from korea its unlocked but it has the annoying korean bloatware i would really like to change the CSC from SKC to KOO please help
Were you able to solve this?
Having the same issue. Downloaded KOO firmware from sammobile and flashed it but still have the same skc firmware with all the bloat.
Jaodidyouknow said:
I just bought the Z Fold3 from korea its unlocked but it has the annoying korean bloatware i would really like to change the CSC from SKC to KOO please help
Click to expand...
Click to collapse
Just download the latest Korean KOO below link
and flash in Odin3 v3.14.1_3B_PatcheD
https://forum.xda-developers.com/t/patched-odin-3-13-1.3762572/
Download Samsung Galaxy Z Fold 3 SM-F926B firmware
Download the latest Samsung firmware for Galaxy Z Fold 3 with model code SM-F926B. Check out our free download or super fast premium options.
www.sammobile.com
Home CFC will not wipe your data normal CFC will wipe it you want to wipe it
I downloaded patched ODIN and flashed the latest KOO firmware available for SM-F926N. Nothing changed at all. The phone still has all the bloat and SK Telecom settings menu options.
Not sure where I am going wrong.
akash31 said:
I downloaded patched ODIN and flashed the latest KOO firmware available for SM-F926N. Nothing changed at all. The phone still has all the bloat and SK Telecom settings menu options.
Not sure where I am going wrong.
Click to expand...
Click to collapse
This is not possible now AFAIK, I have tried to change the same on s21 ultra nothing worked. I even tried samkey ...money waste.
Only solution is root and change using phone info.
You can change csc to KOO however I am still facing network issues in India. Trying to find if somehow I can get to INU csc without root.
To change the CSC on your Korean Z Fold3 SM-F926N, you'll need to follow these steps: [provide steps here].
It's fairly easy to change the CSC on your Z Fold3. Just make sure to follow a reliable guide and backup your data before proceeding.
If you're looking to change the CSC on your Korean Z Fold3 SM-F926N, it's important to understand the potential risks involved. Only attempt this if you're confident in your technical abilities or seek assistance from a professional.

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