Related
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
I currently have the US s20Ultra unlocked model on ATT (don't foresee changing carriers). Currently I am missing features like VoLTE and VVM. What other features would I be missing if I stay on the unlocked firmware? Can I flash the ATT firmware to get those missing features? Can I flash back to unlock?
Thank you
What's the CSC on your device?
varcor said:
What's the CSC on your device?
Click to expand...
Click to collapse
I am not sure what I am looking for. Its currently on ATT/ATT.
Open your dialer, enter *#1234#, press the Dial Icon. You'll see CSC: G98??, the next 3 letters will be your device's CSC Code. Your Service Provider's CSC is "ATT" which is different than the CSC in your device. Whether or not you can change the CSC depends on your device's CSC. Device firmware is always configured for the specific, original CSC or Multi CSC's.
This post may be the best workaround.
https://forum.xda-developers.com/showpost.php?p=82444733&postcount=8
varcor said:
Open your dialer, enter *#1234#, press the Dial Icon. You'll see CSC: G98??, the next 3 letters will be your device's CSC Code. Your Service Provider's CSC is "ATT" which is different than the CSC in your device. Whether or not you can change the CSC depends on your device's CSC. Device firmware is always configured for the specific, original CSC or Multi CSC's.
This post may be the best workaround.
https://forum.xda-developers.com/showpost.php?p=82444733&postcount=8
Click to expand...
Click to collapse
My CSC: G988U1OYM1ATE4
garyHal said:
My CSC: G988U1OYM1ATE4
Click to expand...
Click to collapse
Your device has Multiple CSC's which are included in OYM so you should be able to change your CSC to ATT, which is the CSC for AT&T.
Go to "Settings" then "About phone". Write down your IMEI Number. Open dialer and enter *#272*IMEInumber# (In the thread replace IMEInumber with your actual IMEI Number). Press the Dial Icon, you should see a screen with the list of available CSC codes for your device. Select ATT and tap the Install option.
Be aware your firmware isn't AT&T, it's unbranded so even if you change the CSC, full call functionality may not be available. You can obtain AT&T's firmware at SamMobile.
https://www.sammobile.com/samsung/galaxy-s20-ultra/firmware/SM-G988U1/ATT/
varcor said:
Your device has Multiple CSC's which are included in OYM so you should be able to change your CSC to ATT, which is the CSC for AT&T.
Go to "Settings" then "About phone". Write down your IMEI Number. Open dialer and enter *#272*IMEInumber# (In the thread replace IMEInumber with your actual IMEI Number). Press the Dial Icon, you should see a screen with the list of available CSC codes for your device. Select ATT and tap the Install option.
Be aware your firmware isn't AT&T, it's unbranded so even if you change the CSC, full call functionality may not be available. You can obtain AT&T's firmware at SamMobile.
https://www.sammobile.com/samsung/galaxy-s20-ultra/firmware/SM-G988U1/ATT/
Click to expand...
Click to collapse
Varcor, thank you so much for all the directions.
As it stands right now, it is already on ATT. Once I flash over to the ATT firmware, would I be able to flash back to an unbranded one in the future, for whatever reason? Additionally, do I have to stay on the ATT firmware to retain those features? Or could just having my phone communicate with ATT at least once with my "branded" phone and then flash back retain those features?
garyHal said:
Varcor, thank you so much for all the directions.
As it stands right now, it is already on ATT. Once I flash over to the ATT firmware, would I be able to flash back to an unbranded one in the future, for whatever reason? Additionally, do I have to stay on the ATT firmware to retain those features? Or could just having my phone communicate with ATT at least once with my "branded" phone and then flash back retain those features?
Click to expand...
Click to collapse
You're most welcome. Yes, flashing back to unbranded won't be a problem. I don't think you will be able to retain the features if you go back to the unbranded firmware, it's not configured to allow full call feature functionality. Also, after flashing to the AT&T firmware you may need to contact their CSR for external programing. Good luck!
S20+ AT&T
Hi Varcor,
I'm new in this firmware things. I'm from Singapore and has been using S20 Exynos, but due to the extreme heat, bad battery life,etc. I've decided to import S20+ Snapdragon from AT&T, according to the Service provider SW ver information, it's showing as SAOMC_SM-G986U-OYN_ATT_QQ_0023 (I believe this means the set are unlocked).
With that said, I noticed that the software is outdated and the security patch level is on February 1,2020. when I referring to the AT&T website, It's showing as the latest software is QP1A.190711.020.G986USQU1ATE6 (June update) and mine still on QP1A.190711.020..G986USQU1ATAW (February). My CSC is G986UOYN1ATAW.
My question now is, whenever I tried to hit the software update, it's keep telling me that my software is up to date. Is there's a reason why it's wont detect the update? If it's because I'm in Singapore not US, then there's no choice that I need to flash using the firmware from Sammobile. The problem is which one that I need to download as AT&T carrier is not listed there. There's only T-mobile, Sprint, Unknown, USA. Please help.
https://www.sammobile.com/samsung/galaxy-s20-plus/firmware/#SM-G986U
Raigar said:
Hi Varcor,
I'm new in this firmware things. I'm from Singapore and has been using S20 Exynos, but due to the extreme heat, bad battery life,etc. I've decided to import S20+ Snapdragon from AT&T, according to the Service provider SW ver information, it's showing as SAOMC_SM-G986U-OYN_ATT_QQ_0023 (I believe this means the set are unlocked).
With that said, I noticed that the software is outdated and the security patch level is on February 1,2020. when I referring to the AT&T website, It's showing as the latest software is QP1A.190711.020SAOMC_SM-G986U-OYN_ATT_QQ_0023 (June update) and mine still on QP1A.190711.020..G986USQU1ATAW (February). My CSC is G986UOYN1ATAW.
My question now is, whenever I tried to hit the software update, it's keep telling me that my software is up to date. Is there's a reason why it's wont detect the update? If it's because I'm in Singapore not US, then there's no choice that I need to flash using the firmware from Sammobile. The problem is which one that I need to download as AT&T carrier is not listed there. There's only T-mobile, Sprint, Unknown, USA. Please help.
https://www.sammobile.com/samsung/galaxy-s20-plus/firmware/#SM-G986U
Click to expand...
Click to collapse
I would reach out to SamMobile and inquire why they're not listing the AT&T Firmware Update. You state your CSC is G986UOYN1ATAW. That CSC is also associated with T-Mobile. You're not using an AT&T SIM Card, correct? On a Multi-CSC Device when you insert a different SIM, the device should update to the correct Service Provider. If you're using a SIM from a Service Provider other than AT&T you probably won't receive AT&T Software Updates, which are distributed by Samsung, not AT&T via OTA.
varcor said:
I would reach out to SamMobile and inquire why they're not listing the AT&T Firmware Update. You state your CSC is G986UOYN1ATAW. That CSC is also associated with T-Mobile. You're not using an AT&T SIM Card, correct? On a Multi-CSC Device when you insert a different SIM, the device should update to the correct Service Provider. If you're using a SIM from a Service Provider other than AT&T you probably won't receive AT&T Software Updates, which are distributed by Samsung, not AT&T via OTA.
Click to expand...
Click to collapse
I did try to reach them, but for some reason they are giving me some irrelevant answer. Something like "You probably don't get OTA-updates (otherwise you got them already from AT&T)". We are having a conversation breakdown there, I think they are not an english speaker (or my english is just bad). Really? that CSC is associated with T-Mobile? now I'm getting more confused because the box is stated AT&T and it's sealed.
I'm using Singapore SIM card (Singtel), so you were saying this set I'm using right now is a Multi-CSC device? If i were to flash to the other carrier firmware, will it create any problem?
Raigar said:
I did try to reach them, but for some reason they are giving me some irrelevant answer. Something like "You probably don't get OTA-updates (otherwise you got them already from AT&T)". We are having a conversation breakdown there, I think they are not an english speaker (or my english is just bad). Really? that CSC is associated with T-Mobile? now I'm getting more confused because the box is stated AT&T and it's sealed.
I'm using Singapore SIM card (Singtel), so you were saying this set I'm using right now is a Multi-CSC device? If i were to flash to the other carrier firmware, will it create any problem?
Click to expand...
Click to collapse
Flashing Singtel Firmware won't work since it's configured for the Exynos SoC. Multi-SIM Devices have only regional Service Providers available, you don't have Singtel as an option in an AT&T device. Based on your situation I would consider one of two options. The first would be insert an AT&T SIM just for OTA updates. Not sure if you received an AT&T SIM when you purchased the device, if you didn't they're not hard to find. The second and likely best option is sell the device and purchase a Global Variant with a Snapdragon SoC, you'll receive updates regardless of your Service Provider. If it makes you feel any better there's lots of users in the same predicament. They want the Snapdragon device in regions selling mainly Exynos devices. Workarounds are in many situations are challenging,
varcor said:
Your device has Multiple CSC's which are included in OYM so you should be able to change your CSC to ATT, which is the CSC for AT&T.
Go to "Settings" then "About phone". Write down your IMEI Number. Open dialer and enter *#272*IMEInumber# (In the thread replace IMEInumber with your actual IMEI Number). Press the Dial Icon, you should see a screen with the list of available CSC codes for your device. Select ATT and tap the Install option.
Be aware your firmware isn't AT&T, it's unbranded so even if you change the CSC, full call functionality may not be available. You can obtain AT&T's firmware at SamMobile.
https://www.sammobile.com/samsung/galaxy-s20-ultra/firmware/SM-G988U1/ATT/
Click to expand...
Click to collapse
Varcor
I have the exact same phone and using the same network as garyHal, unlocked 988U1/OYM/ATT.
I got my bootloader unlocked and decided to apply the ATT firmware (
G988U1UES1BTJ2). My CSC was already ATT so I didn't perform the csc install step.
After setting the phone up as new, it still seems like its running the unlocked mode. I don't see any kind of branding or extra ATT stuff that may have been downloaded. How do I verify that I have the right firmware and CSC set to ATT?
Thank you.
itchyUnder said:
Varcor
I have the exact same phone and using the same network as garyHal, unlocked 988U1/OYM/ATT.
I got my bootloader unlocked and decided to apply the ATT firmware (
G988U1UES1BTJ2). My CSC was already ATT so I didn't perform the csc install step.
After setting the phone up as new, it still seems like its running the unlocked mode. I don't see any kind of branding or extra ATT stuff that may have been downloaded. How do I verify that I have the right firmware and CSC set to ATT?
Thank you.
Click to expand...
Click to collapse
How did you manage to unlock your bootloader since US Snapdragon variants are locked down pretty tight? I don't think the firmware is dedicated to ATT, it's Multi CSC, designed to function with a number of US Carriers. You should be delighted you're not suffering with ATT bloatware! To check the Active CSC go to About Phone, Settings, Software Information, Service Provider SW ver. On the bottom string the first three letters are the Active CSC on your device. You can review this article for additional information on Firmware and CSC's.
CSC and Home_CSC | All You Need to Know About ODIN Samsung Flash
Here is all you need to know about the CSC and Home_CSC.What exactly is a Firmware?A firmware is nothing but a permanent software which is programme
www.getdroidtips.com
varcor said:
How did you manage to unlock your bootloader since US Snapdragon variants are locked down pretty tight? I don't think the firmware is dedicated to ATT, it's Multi CSC, designed to function with a number of US Carriers. You should be delighted you're not suffering with ATT bloatware! To check the Active CSC go to About Phone, Settings, Software Information, Service Provider SW ver. On the bottom string the first three letters are the Active CSC on your device. You can review this article for additional information on Firmware and CSC's.
CSC and Home_CSC | All You Need to Know About ODIN Samsung Flash
Here is all you need to know about the CSC and Home_CSC.What exactly is a Firmware?A firmware is nothing but a permanent software which is programme
www.getdroidtips.com
Click to expand...
Click to collapse
If I am reading it correctly, this is what I am seeing:
ATT/ATT/XAA
I am happy that I don't have the ATT bloatware but I also feel that ATT is locking me out of some of their features because I don't have a "branded" phone, such as wifi call or visual voicemail. Am I misunderstanding your post from above, #6, that flashing ATT firmware would give me the carrier features?
Additionally, does the firmware determine what frequency bands I am using and if I am taking full advantage of ATT's offerings?
itchyUnder said:
If I am reading it correctly, this is what I am seeing:
ATT/ATT/XAA
I am happy that I don't have the ATT bloatware but I also feel that ATT is locking me out of some of their features because I don't have a "branded" phone, such as wifi call or visual voicemail. Am I misunderstanding your post from above, #6, that flashing ATT firmware would give me the carrier features?
Additionally, does the firmware determine what frequency bands I am using and if I am taking full advantage of ATT's offerings?
Click to expand...
Click to collapse
Flashing ATT Dedicated Firmware would give you the best chance for additional call features ASSUMING your Ulocked Device is capable of incorporating those features. It should do the trick since the hardware is identical to an ATT device. I would head to an ATT Store to get a definitive answer. Samsung has made it more and more challenging to mix and match branded and unlocked devices with CSC or Firmware modifications. In many cases you won't know until you try. Users want their smartphones to be smart, to work perfectly in every situation but the major carriers use proprietary tools to hold clients hostage.
varcor said:
Open your dialer, enter *#1234#, press the Dial Icon. You'll see CSC: G98??, the next 3 letters will be your device's CSC Code. Your Service Provider's CSC is "ATT" which is different than the CSC in your device. Whether or not you can change the CSC depends on your device's CSC. Device firmware is always configured for the specific, original CSC or Multi CSC's.
This post may be the best workaround.
https://forum.xda-developers.com/showpost.php?p=82444733&postcount=8
Click to expand...
Click to collapse
Please bro i need a help
My note 20 ultra is ATT unlocked
Because I'm not in united state
But in section about phone
My model is N986U note U1
am searching sammobil to udate my phone to android 13
I found nothing at&t with my model number N986U
Only N986U1
What should I do to update to android 13
This should do the trick.
Download Samsung Galaxy Note 20 Ultra 5G SM-N986U USC USA (US Cellular) firmware
All Samsung firmwares for Galaxy Note 20 Ultra 5G in USA (US Cellular) with model code SM-N986U. We offer free and fast download options. Check them out now.
www.sammobile.com
romano_ezzat said:
Please bro i need a help
My note 20 ultra is ATT unlocked
Because I'm not in united state
But in section about phone
My model is N986U note U1
am searching sammobil to udate my phone to android 13
I found nothing at&t with my model number N986U
Only N986U1
What should I do to update to android 13
Click to expand...
Click to collapse
Download Samsung Galaxy Note 20 Ultra 5G SM-N986U USC USA (US Cellular) firmware
All Samsung firmwares for Galaxy Note 20 Ultra 5G in USA (US Cellular) with model code SM-N986U. We offer free and fast download options. Check them out now.
www.sammobile.com
varcor said:
This should do the trick.
Download Samsung Galaxy Note 20 Ultra 5G SM-N986U USC USA (US Cellular) firmware
All Samsung firmwares for Galaxy Note 20 Ultra 5G in USA (US Cellular) with model code SM-N986U. We offer free and fast download options. Check them out now.
www.sammobile.com
Click to expand...
Click to collapse
I misunderstanding
What a trick bro
It's a link for firmware updates
I need to know which one compatible with my note
And after flash will still unlocked?
Hello Community,
I have always bought factory unlock international versions of Samsung galaxy S phones from Amazon and used it outside the US (in Central America). The last time I flashed a phone was in the Samsung S4 period where a few friends had carrier branded phones, which I helped them unbranded by flashing the TTT (Trinidad and Tobago) firmware, since the PDA and CSC was the same as mine. It never gave me any issues and therefore, I never really messed with CSC before. It was easy and simple!
I recently returned to Samsung ecosystem but this time I bought a S20+ (SM-G985F) carrier branded and locked phone (Claro Guatemala). It's clear that things have gotten way complicated now.
Version: G985FXXU3ATG4 / G985FOWA3ATG4 / G985FXXU3ATG4
CSC: PGU
Thanks to another post, I was instructed to able to flash a different firmware to unbrand it. I was also instructed to change CSC to GTO, so I would not loose VoWIFI and VoLTE. Apparently now just flashing the firmware does not change the CSC, there is another process for that. I performed the change but still lost the options (although my carrier still doesn't support it).
version: G985FXXU3ATG4 / G985FOXM3ATG9 / G985FXXU3ATG4
CSC: GTO
I've been trying to understand how CSC works but I've been reading several contradictions. Some say that if CSCs don't match you might not get OTAs. Other say that that doesn't matter. Why couldn't I just flash the TTT as I've done before? Why did I have to change my CSC to GTO? What if I change my CSC to TPA but use it in Guatemala, would I still get OTA updates? If my device is single sim, why does my CSC GTO/GTO,GTO/PGU as a dual sim?
Who can give me a definite explanation on how to choose a correct CSC firmware? HELP!
I'm going through the same nightmare...
servenaya said:
Hello Community,
I have always bought factory unlock international versions of Samsung galaxy S phones from Amazon and used it outside the US (in Central America). The last time I flashed a phone was in the Samsung S4 period where a few friends had carrier branded phones, which I helped them unbranded by flashing the TTT (Trinidad and Tobago) firmware, since the PDA and CSC was the same as mine. It never gave me any issues and therefore, I never really messed with CSC before. It was easy and simple!
I recently returned to Samsung ecosystem but this time I bought a S20+ (SM-G985F) carrier branded and locked phone (Claro Guatemala). It's clear that things have gotten way complicated now.
Version: G985FXXU3ATG4 / G985FOWA3ATG4 / G985FXXU3ATG4
CSC: PGU
Thanks to another post, I was instructed to able to flash a different firmware to unbrand it. I was also instructed to change CSC to GTO, so I would not loose VoWIFI and VoLTE. Apparently now just flashing the firmware does not change the CSC, there is another process for that. I performed the change but still lost the options (although my carrier still doesn't support it).
version: G985FXXU3ATG4 / G985FOXM3ATG9 / G985FXXU3ATG4
CSC: GTO
I've been trying to understand how CSC works but I've been reading several contradictions. Some say that if CSCs don't match you might not get OTAs. Other say that that doesn't matter. Why couldn't I just flash the TTT as I've done before? Why did I have to change my CSC to GTO? What if I change my CSC to TPA but use it in Guatemala, would I still get OTA updates? If my device is single sim, why does my CSC GTO/GTO,GTO/PGU as a dual sim?
Who can give me a definite explanation on how to choose a correct CSC firmware? HELP!
Click to expand...
Click to collapse
Isn't the SM-G985F a Multi CSC device? Try this, go to "Settings" then "About phone". Write down your IMEI Number. Open dialer and enter *#272*IMEInumber# (In the thread replace IMEInumber with your actual IMEI Number). Press dial, you should see a screen with the list of available CSC codes for your device. Select the CSC that you want and tap the Install option.
servenaya said:
Hello Community,
I've been trying to understand how CSC works but I've been reading several contradictions. Some say that if CSCs don't match you might not get OTAs. Other say that that doesn't matter. Why couldn't I just flash the TTT as I've done before? Why did I have to change my CSC to GTO? What if I change my CSC to TPA but use it in Guatemala, would I still get OTA updates? If my device is single sim, why does my CSC GTO/GTO,GTO/PGU as a dual sim?
Who can give me a definite explanation on how to choose a correct CSC firmware? HELP!
Click to expand...
Click to collapse
I'm also new to the CSC concept, and have been looking into its function. I would recommend checking out these links for a good overview.
(I'm a new user and cannot post external links, you'll have to use a search engine to find these. If a MOD wants to change these to links, feel free!)
1 - Droid Views dot com- "Difference Between CSC and HOME_CSC (Samsung Firmware)"
2 - Droid Views dot com - "Change CSC on Samsung Devices – Samsung CSC Codes"
3 - Samsung dot com - Tech Talk - "What’s CSC on Samsung?"
4 - Android dot stackexchange dot com - "How to find my device's CSC (Country Specific Code)"
5 - https://forum.xda-developers.com/showpost.php?p=72198850&postcount=21
6 - https://forum.xda-developers.com/showpost.php?p=72321531&postcount=28
7 - technastic dot com - "CSC or HOME CSC? Which File You Should Flash in Odin"
8 - https://forum.xda-developers.com/showthread.php?t=1988202
9 - https://forum.xda-developers.com/showthread.php?t=2033894
10 - https://forum.xda-developers.com/showthread.php?t=1356325
11 - Android dot stackexchange dot com - "What do the numbers and letters in the Samsung Firmware mean?"
12 - https://forum.xda-developers.com/galaxy-s3/general/csc-codes-t2090739
What follows are my findings and my attempt to 'put it all together'.
Samsung Firmware Naming Convention
See [10] and [11]
What is a CSC?
Samsung CSC refers to the Country Specific (Product) Code. This identifies the region and carrier for which the device is configured [1,3].
This includes [7]:
Carrier branding: A CSC may be country or carrier-specific. Samsung releases the same model of a smartphone to Tab with different CSCs. For instance, if you use an unlocked or unbranded Samsung Galaxy phone in the UK, its CSC would be BTU. However, if your device is locked to a network operator, it could be VOD (Vodafone), TMU (T-Mobile), ORA (Orange), XEU (EE & Three), etc.
System Languages: These include the availability of the popular languages used in a geographical area. For example, if you own a Samsung phone in Mexico and flash the firmware meant for India with INS as CSC, you won’t be able to set Spanish, Nahuatl, or Mixtec as your phone’s system language and keyboard.
Localizations: Samsung ships its devices with geo-specific or bloat apps relevant to a country or region. Localization also determines the calendar settings and local festivals.
APN Settings: Access Point Name settings include all configurations to make a mobile device work with the network carriers of a region or country. Without these configurations, you may not be able to enjoy seamless GSM, GPRS, 3G or 4G mobile networks.
Samsung FUS: CSC also contains key info to help Samsung’s Firmware Update Server to connect to the correct update channel and roll out the proper software update to your Galaxy device via OTA.
Deep dive:
Historically, Samsung had one CSC folder on the device [8], located at /system/csc. This folder contained different XML files used to configure the device.
Code:
/system/csc
features.xml
language.xml
others.xml
customer.xml
The supported configuration options for these files have been extensively documented by other users [9].
Presently, there are two flavors of CSC files CSC and HOME_CSC. Flashing CSC performs a factory reset of the device; wiping all third-party apps, data and settings [7]. HOME_CSC is used to reinstall the firmware or updating the system, retaining apps, data, and settings.
Examining the current contents of a HOME_CSC file shows the structure has changed.
Code:
HOME_CSC_OMC_OXM_G985FOXM3ATG9_CL18862671_QB33041563_REV01_user_low_ship_MULTI_CERT/
meta-data
cache.img.lz4
optics.img.lz4
prism.img.lz4
The three image files correspond to directories found on the device root (using adb).
Code:
/cache/
backup
backup_stage
lost+found
lsb
magisk
magisk.log
magisk.log.bak
recovery
/optics/
configs
/prism/
HWRDB
app
etc
lost+found
media
priv-app
sipdb
Buried within the optics folder, we find XML files similar to the original design.
Code:
/optics/configs/carriers/single/TPA/conf
cscfeature.xml
cscfeature_network.xml
customer.xml
omc.info
How do I find and interpret my CSC?
You check your CSC by going to Settings > About Phone > Software Information > Service Provider SW Version. According to [1] you should see the following, depending on your phone's SIM capacity.
CSC Format:
AAA/BBB/CCC (Single SIM Models)
AAA/BBB,BBB/CCC (Dual SIM Models)
Click to expand...
Click to collapse
Where, according to [5]
AAA is the current CSC
BBB is the recommed CSC for your SIM (if this CSC is inside your current Multi-CSC)
CCC is the factory CSC of your phone and can´t be changed
Click to expand...
Click to collapse
Some phone info applications call these the original (CCC), firmware (AAA), and active (BBB) CSCs. For example, my SM-G985F shows
Code:
SAOMC_SM-G980F_OXM_TPA_QQ_0006
...
TPA/TPA,TPA/TPA
Which tells me that the phone was manufactured for Panama, has the Panama firmware and the recommended SIM CSCs are both for Panama. I know this because the list of CSC country codes is well documented [12].
NOTE: I came across multiple sources online that say the SIM CSC will change depending on the SIM card you have inserted. For example, [1] states
When you switch to a SIM card from a different country, your device will attempt to modify the SIM CSC. If the operation is successful, you’ll receive a popup asking to align the new information with the active CSC. This will effectively modify the configuration region, but the process requires a factory reset.
Click to expand...
Click to collapse
But this may not be true. I am in the USA using a local provider and was never prompted as described.
What does each CSC do?
So we have the three different CSCs, each of which could be responsible for configuring different parts of the phone.
Firmware
SIM
Original (factory)
I would think that the original CSC is only there to identify the original factory firmware, and is not configuring anything on the phone. The firmware CSC should tell me the current firmware loaded and the SIM CSC does ???
I will continue to look into this over the next few days. If anyone can contribute more information it would be very helpful.
Hi Everyone,
I'm from Australia and recently bought a SM-G781B off eBay...
Turns out it was a UAE variant and Samsung Pay is all messed up.
I've flashed the phone a few times now using ODIN, trying to get the right CSC correct for Australia (G781BXXU2CUB5) for either of the following CSC's;
XSA (Generic Australia), OPS (Optus), VAU (Vodafone), or TEL (Telstra).
The issue I have is all the Stock Firmware's I've download and flashed keeps registering my CSC as XME (Malaysia)...
Phone INFO app doesn't even detect any other CSC's in the package
I've tried downloading the correct Firmware packs from the following and none gives me the correct CSC for Australia;
https://samfrew.com/
https://www.sammobile.com/
https://samfw.com/
App: Frija Firmware
Does anyone know why this is happening, or can upload/direct me to correct firmware either XSA, OPS (Optus), VAU (Vodafone), or TEL (Telstra)?
I'm totally at a loss now...
Any help would be much appreciated, thanks heaps in advance.
from what I've read recently Samsung has stopped people being able to switch as of android 11.
maybe... I stress MAYBE according to your countryman Hugh Jefferys, if there's a lower version of firmware on the same binary number you might be able to downgrade and then that might mean you can switch CSC.
this is someone who's never even tried changing CSC telling you this so your own research is obviously the only thing to put some faith in.
good luck
XSG (UAE) firmware is part of the OJM multi CSC, whereas XSA/OPS/TEL are part of the OLM multi CSC. This means that it is not possible to simply flash XSA in Odin as the multi CSCs are different, you would first have to use the combination ROM to change from OJM to OLM and then you would be able to flash any OLM CSC firmware, whether that be Australia, Singapore, Malaysia, or Thailand. I'm an Aussie myself, I got my phone from JB Hi Fi but switched it to Thailand CSC since XSA updates are horrendously slow (Samsung Pay does still work on Thailand CSC as does VoLTE/VoWiFi). For your case though, I'm afraid you are out of luck in terms of changing the multi CSC with the combination ROM, if you are on One UI 3.1 then the bootloader version is U2 whereas the combination ROM bootloader version is U1, so you would not be able to flash it anyway. Also, I tried to flash the combination ROM while my bootloader was still on U1 because I wanted to change from OLM to OXM (Romania CSC) for fastest updates, but Odin was not allowing the flash first because of "please get the approval to flash factory images (pit)" which I fixed, then "please get the approval to flash factory images (abl)" at which point I gave up. So as I said before, sorry but I don't think there's a lot you can do Unless a U2 bootloader version combination ROM is leaked which may or may not happen and you can get around the Odin not allowing you to flash it issues, the phone will unfortunately be stuck on UAE firmware (unless there are other countries part of OJM which you could switch to for faster updates).
Hopefully this helps you.
I have the same model! I changed my CSC but for some reason chat features in messaging app doesn't work now..other than that, all's good..
Skhux said:
I have the same model! I changed my CSC but for some reason chat features in messaging app doesn't work now..other than that, all's good..
Click to expand...
Click to collapse
Your software version is was originally XSA, so you wouldn’t have any issues flashing it with XSA and defaulting to XSA instead of another region. The CSC will automatically default back to XSA.
Mine unfortunately defaults to Malaysia XME when flashed with XSA firmware.
FedoraMaster420 said:
XSG (UAE) firmware is part of the OJM multi CSC, whereas XSA/OPS/TEL are part of the OLM multi CSC. This means that it is not possible to simply flash XSA in Odin as the multi CSCs are different, you would first have to use the combination ROM to change from OJM to OLM and then you would be able to flash any OLM CSC firmware, whether that be Australia, Singapore, Malaysia, or Thailand. I'm an Aussie myself, I got my phone from JB Hi Fi but switched it to Thailand CSC since XSA updates are horrendously slow (Samsung Pay does still work on Thailand CSC as does VoLTE/VoWiFi). For your case though, I'm afraid you are out of luck in terms of changing the multi CSC with the combination ROM, if you are on One UI 3.1 then the bootloader version is U2 whereas the combination ROM bootloader version is U1, so you would not be able to flash it anyway. Also, I tried to flash the combination ROM while my bootloader was still on U1 because I wanted to change from OLM to OXM (Romania CSC) for fastest updates, but Odin was not allowing the flash first because of "please get the approval to flash factory images (pit)" which I fixed, then "please get the approval to flash factory images (abl)" at which point I gave up. So as I said before, sorry but I don't think there's a lot you can do Unless a U2 bootloader version combination ROM is leaked which may or may not happen and you can get around the Odin not allowing you to flash it issues, the phone will unfortunately be stuck on UAE firmware (unless there are other countries part of OJM which you could switch to for faster updates).
Hopefully this helps you.
Click to expand...
Click to collapse
Thanks for the detailed reply.
From what I’ve tested, I have no issues with flashing from XSG OJM Multi to XSA OLM Multi. You can do this provided the FIrmware security number is the same as your current revision. You can’t however flash to a lower security value. See image attached.
The current firmware security value at the moment is “2” running One UI 3.1, Android 11. We can’t downgrade to any security firmware version “1” types with Android 10. If we could, then you can use multiple methods to manually change the CSC .i.e through Google Dialer or IMEI trick.
All the Firmwares at the moment are still Muti regional, unfortunately there doesn’t seem to be a way to change the CSC manually even though they are Multi regional.
All XSA firmwares I’ve downloaded and flashed will keep defaulting to XME as that’s the default unless my original CSC was XSA to begin with for it to detect.
I think the only option at the moment is to use SAMKEY, unless someone comes with with a new Android 11 method...
The other option is to root the phone and ADB to change the CSC, however this would trigger and break KNOX securities.
I did check Samkeys update log and they state it’s supported now, this method wouldn’t trigger KNOX;
VERSION 3.63.9 (PLANET EARTH'S FIRST)
- Added support for G780F (Galaxy S20 FE) ALL BIT
- Added support for G781B (Galaxy S20 FE 5G) ALL BIT
- Fixed FAIL(16) on Slow PC's
- Fixed FAIL(20) on G780F
They’re actually up to VERSION 3.71.9 now.
Might be worth a try.
kuri_2k said:
I think the only option at the moment is to use SAMKEY, unless someone comes with with a new Android 11 method...
The other option is to root the phone and ADB to change the CSC, however this would trigger and break KNOX securities.
I did check Samkeys update log and they state it’s supported now, this method wouldn’t trigger KNOX;
VERSION 3.63.9 (PLANET EARTH'S FIRST)
- Added support for G780F (Galaxy S20 FE) ALL BIT
- Added support for G781B (Galaxy S20 FE 5G) ALL BIT
- Fixed FAIL(16) on Slow PC's
- Fixed FAIL(20) on G780F
They’re actually up to VERSION 3.71.9 now.
Might be worth a try.
Click to expand...
Click to collapse
I can confirm SamKEY works on One UI 3.1, unfortunately it is paid but it does work. You can get an account for cheap from eBay with 1 credit on it which is all you need to do the CSC change. Using it I was able to change from XSA to THL (with no data wipe at all which really surprised me).
kuri_2k said:
Your software version is was originally XSA, so you wouldn’t have any issues flashing it with XSA and defaulting to XSA instead of another region. The CSC will automatically default back to XSA.
Mine unfortunately defaults to Malaysia XME when flashed with XSA firmware.
Click to expand...
Click to collapse
Trust me you wouldn't want XSA firmware anyway, the updates are terribly slow for it for the S20 FE 5G (not sure about 4G), it tends to get security patches a month after they should've came out, for example it got the March security patch in April which is pretty awful imo. I think it's the slowest CSC in general for the G781B, if you're on OLM multi CSC you're much better off switching to THL where the updates are a lot faster.
kuri_2k said:
Thanks for the detailed reply.
From what I’ve tested, I have no issues with flashing from XSG OJM Multi to XSA OLM Multi. You can do this provided the FIrmware security number is the same as your current revision. You can’t however flash to a lower security value. See image attached.
The current firmware security value at the moment is “2” running One UI 3.1, Android 11. We can’t downgrade to any security firmware version “1” types with Android 10. If we could, then you can use multiple methods to manually change the CSC .i.e through Google Dialer or IMEI trick.
All the Firmwares at the moment are still Muti regional, unfortunately there doesn’t seem to be a way to change the CSC manually even though they are Multi regional.
All XSA firmwares I’ve downloaded and flashed will keep defaulting to XME as that’s the default unless my original CSC was XSA to begin with for it to detect.
Click to expand...
Click to collapse
That's interesting, I didn't think it was possible to change between multi CSCs like this without the combination ROM (how you were able to switch from OJM to OLM). If you try to switch to an OXM multi CSC such as DBT or ROM from OLM multi CSC, what happens? Does it work? I'll be honest I never tried it myself but didn't have the motivation to try it anyway as I heard it wouldn't work.
FedoraMaster420 said:
That's interesting, I didn't think it was possible to change between multi CSCs like this without the combination ROM (how you were able to switch from OJM to OLM). If you try to switch to an OXM multi CSC such as DBT or ROM from OLM multi CSC, what happens? Does it work? I'll be honest I never tried it myself but didn't have the motivation to try it anyway as I heard it wouldn't work.
Click to expand...
Click to collapse
Hi There,
Yes, im sure it works provided the security firmware version is the same as I mentioned above.
I also changed to BTU to test.
I can't test for you any longer as I've returned the device for a refund. Will go buy an AUS XSA Variant.
Attached are the images of my original and changed firmware for your reference.
kuri_2k said:
Hi There,
Yes, im sure it works provided the security firmware version is the same as I mentioned above.
I can't test for you any longer as I returned the device for a refund. Will buy an AUS XSA Variant.
Attached are the images of my original and changed firmware for your reference.
Click to expand...
Click to collapse
That's very interesting, when you get the XSA variant can you try and see if you are able to flash a CSC such as ROM or DBT on the phone successfully using Odin? I would love to know if it was possible for this to work or not, I'm on THL myself after changing from XSA and did not think it was possible to switch to a different multi CSC (from OLM to OXM).
FedoraMaster420 said:
I can confirm SamKEY works on One UI 3.1, unfortunately it is paid but it does work. You can get an account for cheap from eBay with 1 credit on it which is all you need to do the CSC change. Using it I was able to change from XSA to THL (with no data wipe at all which really surprised me).
Click to expand...
Click to collapse
Wish I tried it before returning the device. The Australian stock only has 6GB RAM and no dual-sim....
kuri_2k said:
Wish I tried it before returning the device. The Australian stock only has 6GB RAM and no dual-sim....
Click to expand...
Click to collapse
Yeah that's true no 8GB variant sold here as far as I know not even on the Samsung website and we don't even get eSIM support either
Is there an update/workaround on this issue?
are there any methods that work without samKey?
Noticed that the dialer app that was once able to record calls, is now recording only me talking, since the latest OTA updates on the stock firmware (updated to oneUI 3.1 and Android 11).
I'm also on XSG (OJM) firmware and want to change CSC to enable call recording on galaxy S20 FE 5G (model G781B).
Would love to know how can it be done.
*my software info is attached in the screenshot
thanks!
VM57 said:
Is there an update/workaround on this issue?
are there any methods that work without samKey?
Noticed that the dialer app that was once able to record calls, is now recording only me talking, since the latest OTA updates on the stock firmware (updated to oneUI 3.1 and Android 11).
I'm also on XSG (OJM) firmware and want to change CSC to enable call recording on galaxy S20 FE 5G (model G781B).
Would love to know how can it be done.
*my software info is attached in the screenshot
thanks!
Click to expand...
Click to collapse
I'm sure by now you've already sorted this, but this is for future people with a need to change CSC
The SamFW FRP Tool can tell you which CSCs are available on your phone already, and can automatically have the CarrierPreConfig service trigger a CSC update. Only need to enable USB Debugging. No root, no reinstall.
But if your phone doesn't have the CSC you need already, download Frija, or another firmware download tool, you'll be able to download and install an OXM Multi CSC firmware (such as XSA, OPS, TEL or VAU), and install it via ODIN tool.
Be sure to select HOME_CSC to keep your data, and backup first.
Peterepeat87 said:
I'm sure by now you've already sorted this, but this is for future people with a need to change CSC
The SamFW FRP Tool can tell you which CSCs are available on your phone already, and can automatically have the CarrierPreConfig service trigger a CSC update. Only need to enable USB Debugging. No root, no reinstall.
But if your phone doesn't have the CSC you need already, download Frija, or another firmware download tool, you'll be able to download and install an OXM Multi CSC firmware (such as XSA, OPS, TEL or VAU), and install it via ODIN tool.
Be sure to select HOME_CSC to keep your data, and backup first.
Click to expand...
Click to collapse
Thank you, mate! I have just registered here specifically to thank you You really were the last random post I found in the internet that helped me to solve this unflashable state of my S9. Thank you again! <O
Hi All,
I have a Samsung Z fold 4 ‐ SM-F936N model (Korea version). I want to use it in India. Can I flash BL, AP and CP from SM-F936N firmware and CSC and Home CSC from SM-F936B (india compatible version)'s firmware (CSC as OXM, and Home CSC as INS)?
Want to do this primarily for Samsung Pay and removing Korean telecom files which came installed by default.
Also, assuming it is possible, will it impact OTA update?
Pdash said:
Hi All,
I have a Samsung Z fold 4 ‐ SM-F936N model (Korea version). I want to use it in India. Can I flash BL, AP and CP from SM-F936N firmware and CSC and Home CSC from SM-F936B (india compatible version)'s firmware (CSC as OXM, and Home CSC as INS)?
Want to do this primarily for Samsung Pay and removing Korean telecom files which came installed by default.
Also, assuming it is possible, will it impact OTA update?
Click to expand...
Click to collapse
I Can´t speak without doubs, but, AFIK, you can´t mix firmware files nor use firmwares from different HW versions...
Pdash said:
Hi All,
I have a Samsung Z fold 4 ‐ SM-F936N model (Korea version). I want to use it in India. Can I flash BL, AP and CP from SM-F936N firmware and CSC and Home CSC from SM-F936B (india compatible version)'s firmware (CSC as OXM, and Home CSC as INS)?
Want to do this primarily for Samsung Pay and removing Korean telecom files which came installed by default.
Also, assuming it is possible, will it impact OTA update?
Click to expand...
Click to collapse
No different models You will end up with a bricked phone.
cooldude20000 said:
No different models You will end up with a bricked phone.
Click to expand...
Click to collapse
Thanks for your post. Saved me from attempting a disaster.
rafafischer said:
I Can´t speak without doubs, but, AFIK, you can´t mix firmware files nor use firmwares from different HW versions...
Click to expand...
Click to collapse
Thanks a tonne for your reply. Not gonna attempt it.
I have the same problem. I am unable to change the primary csc and it won't pay
luisvaljun said:
I have the same problem. I am unable to change the primary csc and it won't pay
Click to expand...
Click to collapse
Flashing firmware does not change csc u have to use something like samkey or samfw csc changer
Can you use 5G in India I have the same model and I can’t I want to use 5G
I successfully flashed my fold4 from US Verizon to US AT&T but video call doesn't work. Flashing from completely different region models might be more problematic.