Question How i can debrand s21fe with keeped ota update? - Samsung Galaxy S21 FE

Hi. I need change CSC in my S21FE From PRT (Poland) to EUX. How I can change?

oli231 said:
Hi. I need change CSC in my S21FE From PRT (Poland) to EUX. How I can change?
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Click to collapse
You can debloat it or samkey, but for money. Welcome to my last Samsung phone

oli231 said:
Hi. I need change CSC in my S21FE From PRT (Poland) to EUX. How I can change?
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Click to collapse
You can do it very very easily with a small software, SamFW Tool. Your phone will not reset, nothing will be deleted, takes only 5minits and its totally free. You need to enable USB debugging mode on your phone, connect to pc, open the software, select desired CSC and click change. Your phone will restart and thats it, you are done! 100% risk-free.
Link of the software:
SamFwToolSetup_v4.7.1.zip | by Samfw Global for -All-General-Generic-
Download GApps, Roms, Kernels, Themes, Firmware, and more. Free file hosting for all Android developers.
androidfilehost.com
P.S: You need to disable the antivirus or windows defender on your pc during the download & installing of the software.

Related

Phone INFO ★Samsung★ - all key info: CSC, Bootloader, Secret Codes, Country of Origin

Phone INFO ★Samsung★ - all key info: CSC, Bootloader, Secret Codes, Country of Origin
This app will show you:
- CSC code, CSC country. And also allow you to change the CSC.
- Bootloader version, Baseband version, PDA version...
- All Secret Codes in your phone
- Country of Origin, Manufacturing date, phone color...
- Headset Connect Counter, Charger Connect Counter, S Pen Detach Counter
And more info available.
Play Store: https://play.google.com/store/apps/details?id=org.vndnguyen.phoneinfo
It does not change CSC. When i try it there is no success.
dtosun said:
It does not change CSC. When i try it there is no success.
Click to expand...
Click to collapse
Do you have root? It needs root to work.
vndnguyen said:
Do you have root? It needs root to work.
Click to expand...
Click to collapse
Yes, sure my devices has root but it does not work. My rom is SK Telekom. May be my rom has not multi CSC.
dtosun said:
Yes, sure my devices has root but it does not work. My rom is SK Telekom. May be my rom has not multi CSC.
Click to expand...
Click to collapse
Yes you are right, it need multi-CSC firmware to change the CSC.
Does anyone know how I can change the country from Korea to UK please?
Thanks.
invisiblesense said:
Does anyone know how I can change the country from Korea to UK please?
Thanks.
Click to expand...
Click to collapse
That should be in the build.prop
ro.product.manufacturer=samsung
ro.product.locale.language=en
ro.product.locale.region=US
Your see something like that. There might be more to change. If you can get a build.pbuild.prop from a UK phone and copy over your.
Its localed in /system /
xile6 said:
That should be in the build.prop
ro.product.manufacturer=samsung
ro.product.locale.language=en
ro.product.locale.region=US
Your see something like that. There might be more to change. If you can get a build.pbuild.prop from a UK phone and copy over your.
Its localed in /system /
Click to expand...
Click to collapse
Thank you xile6. Guessing my phone has to be rooted to do this?
invisiblesense said:
Thank you xile6. Guessing my phone has to be rooted to do this?
Click to expand...
Click to collapse
Yep.
I remember changing this on off others to get into oversea market (play store).
xile6 said:
Yep.
I remember changing this on off others to get into oversea market (play store).
Click to expand...
Click to collapse
So, I must wait till the phone becomes available in uk for this file?
I've purchased this app ,I have note edge SM-N915G I need to change the CSC to XSG ,How ?
copysat said:
I've purchased this app ,I have note edge SM-N915G I need to change the CSC to XSG ,How ?
Click to expand...
Click to collapse
Go to the Menu > Other Tools > CSC Changer and see a list of available CSC in your device.
If there is XSG in the list, you can change to that CSC. Otherwise you have to download that firmware (using Menu > Firmware Browser) and flash via Odin.
vndnguyen said:
Go to the Menu > Other Tools > CSC Changer and see a list of available CSC in your device.
If there is XSG in the list, you can change to that CSC. Otherwise you have to download that firmware (using Menu > Firmware Browser) and flash via Odin.
Click to expand...
Click to collapse
Thanks for the reply, XSG its not in the list and tried to install SM-N915f its XSG rom for UAE via odin its giving not success.
Please advice in details if possible
copysat said:
Thanks for the reply, XSG its not in the list and tried to install SM-N915f its XSG rom for UAE via odin its giving not success.
Please advice in details if possible
Click to expand...
Click to collapse
What firmware did you install via Odin?
Find the firmware for XSG (UAE) by open the menu Firmware Browser, enter XSG into the CSC textbox and tap Go button to search.
vndnguyen said:
What firmware did you install via Odin?
Find the firmware for XSG (UAE) by open the menu Firmware Browser, enter XSG into the CSC textbox and tap Go button to search.
Click to expand...
Click to collapse
that's what I install ( pic attached ).
As I mentioned before my device SM-915G and I want to change it to XSG and the only rom with XSG is UAE for SM-915F .
and that rom I cant install to my device and its giving me fail.
thanks
copysat said:
that's what I install ( pic attached ).
As I mentioned before my device SM-915G and I want to change it to XSG and the only rom with XSG is UAE for SM-915F .
and that rom I cant install to my device and its giving me fail.
thanks
Click to expand...
Click to collapse
You may brick your device by flashing firmware from another model. So no need to risk yourself.
You can find ALL AVAILABLE firmwares for your model (N915G) by leave the CSC textbox empty (blank) and tap Go button to search.
As there is no N915G firmware for UAE now, there is nothing to do. You have 2 options: wait until it becomes available, or try the firmware for your model from another region. I see the following regions are currently available: Australia, India, Singapore.
Got the idea, thanks
Did you know, that...
the Usage History (Headset Connect counter, Charger Connect counter, S Pen Detach counter) remain unchanged even if you factory reset the device.
New update v2.1.0:
- Update Color database.
- Some improvements and optimizations.
(including: install to the external storage, auto close the running service when the app exits,...).
thx a lot this is the best app that i used ever

How to change csc to India

Hi all,
I'm a bit annoyed with Samsung where July Update is already out but I'm still on May Update.
I would like to change my csc to India so that I get updates faster.
Can someone explain or provide a guide on how changing the csc to india please?
Thanks in advance
Simple
Ultiweap said:
Hi all,
I'm a bit annoyed with Samsung where July Update is already out but I'm still on May Update.
I would like to change my csc to India so that I get updates faster.
Can someone explain or provide a guide on how changing the csc to india please?
Thanks in advance
Click to expand...
Click to collapse
Hey mate! Just flash newest firmware of India via ODIN
Or use Samsung Smart Switch for computer to get faster updates :good:
Bl4Ck R34Ct0r said:
Hey mate! Just flash newest firmware of India via ODIN
Or use Samsung Smart Switch for computer to get faster updates :good:
Click to expand...
Click to collapse
Is it safe to flash A505F firmware on the A505FN device? As far as I know, the only difference is NFC.
And is it possible to void the warranty by doing this?
I tried Smart Switch a few times, but no updates.
Bl4Ck R34Ct0r said:
Hey mate! Just flash newest firmware of India via ODIN
Or use Samsung Smart Switch for computer to get faster updates :good:
Click to expand...
Click to collapse
Hi thanks for your reply.
Should I need to remove all accounts, and make a factory reset first?
Smart Switch only will provide you the newest firmware in the same line, not an option to use other different firmware from a different region.
Ever is recommended to do a factory reset/format data before to "switch" to other firmware and make a backup before to restore it in just minutes with SS.
Install Phone Info(Samsung) and there you will find the CSC availables for your device before to change the firmware (most of the international models are multi_CSC compatible), search for the regions and compare them here https://www.****************/2017/0...specific-product-code-csc-and-country-region/ if some of them is convenient for you then you can flash it, check before your bootloader version, I think all are now in v1 but check it before to go further.
SubwayChamp said:
Smart Switch only will provide you the newest firmware in the same line, not an option to use other different firmware from a different region.
Ever is recommended to do a factory reset/format data before to "switch" to other firmware and make a backup before to restore it in just minutes with SS.
Install Phone Info(Samsung) and there you will find the CSC availables for your device before to change the firmware (most of the international models are multi_CSC compatible), search for the regions and compare them here https://www.****************/2017/0...specific-product-code-csc-and-country-region/ if some of them is convenient for you then you can flash it, check before your bootloader version, I think all are now in v1 but check it before to go further.
Click to expand...
Click to collapse
Hi thanks for you reply. I checked with phone info but I don't have CSC INS available but can I flash INS firmware and will it work?
Ultiweap said:
Hi thanks for you reply. I checked with phone info but I don't have CSC INS available but can I flash INS firmware and will it work?
Click to expand...
Click to collapse
Yes, you usually can (I switched a lot of times) but you could find some issues regarding to radio/baseband depending on how different they´re.
Take a backup before using Smart Switch, take note of your actual firmware in a safe place if something goes wrong and don´t forget to enable USB debugging and OEM unlock before to go.
SubwayChamp said:
Yes, you usually can (I switched a lot of times) but you could find some issues regarding to radio/baseband depending on how different they´re.
Take a backup before using Smart Switch, take note of your actual firmware in a safe place if something goes wrong and don´t forget to enable USB debugging and OEM unlock before to go.
Click to expand...
Click to collapse
Hi,
Good yes already did a backup and OEM Unlock and USB Debugging are one.
I'm simply waiting the firmware to be downloaded. Take very long time to download from samfrew
Finally succeeded in flashing to INS.
I forgotten to remove my Sim Card but even that it has changed the CSC.
Thanks a lot for your help @SubwayChamp
Ultiweap said:
Finally succeeded in flashing to INS.
I forgotten to remove my Sim Card but even that it has changed the CSC.
Thanks a lot for your help @SubwayChamp
Click to expand...
Click to collapse
Hey, what's the model of your device? Is it FN, or F? Because Indian firmware is A505F, so I don't know if I can flash A505F firmware on my FN device.
Ibroxx said:
Hey, what's the model of your device? Is it FN, or F? Because Indian firmware is A505F, so I don't know if I can flash A505F firmware on my FN device.
Click to expand...
Click to collapse
My model is A505F. I don't think you may install F on FN. It may work but you may have several problem with correct functionality of the phone or even brick it.
Ibroxx said:
Hey, what's the model of your device? Is it FN, or F? Because Indian firmware is A505F, so I don't know if I can flash A505F firmware on my FN device.
Click to expand...
Click to collapse
F firmware on an FN device should be ok afaik, but I believe you'll loose NFC
Also keep in mind that INS csc has this string in cscfeature_network.xml
<CscFeature_Message_ConfigImeiTracker>+919560345888,+918424098931,+919176905802</CscFeature_Message_ConfigImeiTracker>
I remember that this was a problem on custom roms for the old A-series since all roms for some reason added INS csc, so a bunch of users in europe got charged extra for messages to india if they didn't remove that from cscfeatures..
Not sure if it still acts the same, but I can confirm that the string is there in INS csc for A50.
Ultiweap said:
Finally succeeded in flashing to INS.
I forgotten to remove my Sim Card but even that it has changed the CSC.
Thanks a lot for your help @SubwayChamp
Click to expand...
Click to collapse
Can you make a new thread and post the process?
tys0n said:
F firmware on an FN device should be ok afaik, but I believe you'll loose NFC
Also keep in mind that INS csc has this string in cscfeature_network.xml
<CscFeature_Message_ConfigImeiTracker>+919560345888,+918424098931,+919176905802</CscFeature_Message_ConfigImeiTracker>
I remember that this was a problem on custom roms for the old A-series since all roms for some reason added INS csc, so a bunch of users in europe got charged extra for messages to india if they didn't remove that from cscfeatures..
Not sure if it still acts the same, but I can confirm that the string is there in INS csc for A50.
Click to expand...
Click to collapse
Thank you.
There is finally firmware with July patch for FN versions of this device, so probably I'll wait few days, because only 5 countries in Europe got an update to the newest version, skipping June security patch, but I hope we'll have new features in the camera.

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

SM-G781B - CSC: XSA (Generic Australia), OPS (Optus), VAU (Vodafone), or TEL (Telstra)

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

General G990U Firmware Here

Obviously without a device to flash them on, these are provided for purposes of extraction and tinkering only. If anyone wants a USERDATA for a specific carrier, let me know and I can get it.
Zips are compressed extra small for space and bandwidth savings. The default Windows extractor can't handle it, so you'll need a 3rd party tool like 7zip, WinRAR, etc
Happy poking around!
https://drive.google.com/drive/folders/1DndBwOhf4ZfUbz0SPvrp_SD5nNYgno_5?usp=sharing
S21 FE firmware can now be pulled via Frija and the other similar firmware download tools. Xfinity Mobile (CCT) and Spectrum Mobile (CHA) can be pulled via Auto, and T-Mobile (TMB) can be pulled via Manual entry. U1 firmware (XAA) can be pulled via Manual entry
- Android 12 has been released for U firmware (build UK5)
- T-Mobile firmware can now be pulled via Auto, in Frija
- ATT USERDATA has been uploaded
iBowToAndroid said:
- Android 12 has been released for U firmware (build UK5)
- T-Mobile firmware can now be pulled via Auto, in Frija
- ATT USERDATA has been uploaded
Click to expand...
Click to collapse
*Removed
I34z1k said:
Could you perhaps help me figure out how to grab latest for the SM-990B? I'm guessing the attached means I'm out of luck for now?
Click to expand...
Click to collapse
You don't have G990U or G990U1 so you're in the wrong thread
iBowToAndroid said:
Obviously without a device to flash them on, these are provided for purposes of extraction and tinkering only. If anyone wants a USERDATA for a specific carrier, let me know and I can get it.
Zips are compressed extra small for space and bandwidth savings. The default Windows extractor can't handle it, so you'll need a 3rd party tool like 7zip, WinRAR, etc
Happy poking around!
S21 FE (SM-G990Ux) - Google Drive
drive.google.com
Click to expand...
Click to collapse
Is there a way for me to get that Stock call Background?
what is the pass for UK5.zip?
Hello im new..need help...My csc is XAA so is my model g996u1 or g996u. It shows in my phone as g996u but im unable to find any firmware with xaa csc for model g996u. Fyi im living in Malaysia so i need to manually flash a firmware, hmmm really need help.
Rain700 said:
Hello im new..need help...My csc is XAA so is my model g996u1 or g996u. It shows in my phone as g996u but im unable to find any firmware with xaa csc for model g996u. Fyi im living in Malaysia so i need to manually flash a firmware, hmmm really need help.
Click to expand...
Click to collapse
You're in the wrong thread
iBowToAndroid said:
- Android 12 has been released for U firmware (build UK5)
- T-Mobile firmware can now be pulled via Auto, in Frija
- ATT USERDATA has been uploaded
Click to expand...
Click to collapse
Could you please provide the password for the UK5 firmware?
Thanks
Hi, I need your help guys
Is it possible flash stock US firmware on Verizon S21 FE? Where I could find step by step process?

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