Firmware downgrade - Samsung Galaxy S20 / S20+ / S20 Ultra Questions &

Hi to all, I'm on august security patch, is there a way to downgrade firmware so I can use Samkey to change csc? Thank you.

diego1810 said:
Hi to all, I'm on august security patch, is there a way to downgrade firmware so I can use Samkey to change csc? Thank you.
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no u cant / July patch bootloader v3 / August patch bootloader v4 and 2.5 one ui .
Sent from my SM-G988B using Tapatalk

Related

Regarding security patches

I want to update to February security patch for my moto z play, i did read someplace else that the security patches needs to be secuencial and not skipped is this true? if so, where i can find october security patch thats the only one missing that i cound't find.
can some one help me?
cobolmx said:
I want to update to February security patch for my moto z play, i did read someplace else that the security patches needs to be secuencial and not skipped is this true? if so, where i can find october security patch thats the only one missing that i cound't find.
can some one help me?
Click to expand...
Click to collapse
If sideloading updates/taking OTAs, then yes, it has to be sequential.
If flashing the firmware itself, no.
djdelarosa25 said:
If sideloading updates/taking OTAs, then yes, it has to be sequential.
If flashing the firmware itself, no.
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theres a way to obtain the october patch?
cobolmx said:
theres a way to obtain the october patch?
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Click to collapse
Are you trying to update to Oreo? You could just flash the firmware to your phone.
Here you go: https://forum.xda-developers.com/moto-z-play/how-to/moto-z-play-reteu-firmware-otas-t3557917
djdelarosa25 said:
Are you trying to update to Oreo? You could just flash the firmware to your phone.
Here you go: https://forum.xda-developers.com/moto-z-play/how-to/moto-z-play-reteu-firmware-otas-t3557917
Click to expand...
Click to collapse
thanks a lot!!

Firmware for SW R810

Here you can find firmware for R810
To update with netOdin see here how to do it
https://forum.xda-developers.com/showthread.php?p=78800094
R810XXU1CSE1_Tizen_3File_Multi CSC (OXA)
https://mega.nz/#!1ksz0YTJ!tMWsEd8K-jHxwfHCUFPVRFnml2Clg0JVWeIlDMSoCwQ
Sent from my SM-G975F using XDA-Developers Legacy app
Nmc_alves® said:
Here you can find firmware for R810
To update with netOdin see here how to do it
https://forum.xda-developers.com/showthread.php?p=78800094
R810XXU1CSE1_Tizen_3File_Multi CSC (OXA)
https://mega.nz/#!1ksz0YTJ!tMWsEd8K-jHxwfHCUFPVRFnml2Clg0JVWeIlDMSoCwQ
Sent from my SM-G975F using XDA-Developers Legacy app
Click to expand...
Click to collapse
you're legend man! Thank you!
//edit:
FYI, Flashed it, works good. No issues at all.
Garakk said:
you're legend man! Thank you!
Click to expand...
Click to collapse
HAPPY for helping... And thank you to...
Sent from my SM-G975F using XDA-Developers Legacy app
Thank you very much!
Hi!
Now I have two versions downloaded:
- R810XXU1CSE1
- R810XXU1BSA4
Which should I take to downgrading to 4.0.04? My current version is R810XXU1DSL1.
It should include the german langeuage.
Thanks in advance.
Best Regards
Where can I download firmware for R810 ILO version?
Nmc_alves® said:
Here you can find firmware for R810
To update with netOdin see here how to do it
https://forum.xda-developers.com/showthread.php?p=78800094
R810XXU1CSE1_Tizen_3File_Multi CSC (OXA)
https://mega.nz/#!1ksz0YTJ!tMWsEd8K-jHxwfHCUFPVRFnml2Clg0JVWeIlDMSoCwQ
Sent from my SM-G975F using XDA-Developers Legacy app
Click to expand...
Click to collapse
Hi,
I have Samsung Galaxy watch with the below details:
Tizen Version: 4.0.0.7.
Software Version:
R810XXU1DSL1
SM-R810NZKAINU
I would like to downgrade and change region for Samsung Pay as it isn't supported in my country.I have a couple of questions.
1. Does the above firmware version cause any problems on my Indian model ?
2. Which version of Tizen does the above firmware have ?
3. After downgrading and changing the csc, if i get an official OTA will it revert back to the original firmware ?
Also anybody tried downgrading from latest Tizen version to this version without any issues ?
EDIT :
Flashed the firmware and downgraded without any issues. Also changed the csc to XAR ,got samsung pay to work and was able to add my credit/debit cards successfully.
Applied the official OTA on top of this and Samsung pay stil works fine
Nmc_alves® said:
Here you can find firmware for R810
To update with netOdin see here how to do it
https://forum.xda-developers.com/showthread.php?p=78800094
R810XXU1CSE1_Tizen_3File_Multi CSC (OXA)
https://mega.nz/#!1ksz0YTJ!tMWsEd8K-jHxwfHCUFPVRFnml2Clg0JVWeIlDMSoCwQ
Sent from my SM-G975F using XDA-Developers Legacy app
Click to expand...
Click to collapse
Forgive me for asking, but where did you get this firmware package? Sammobile and the likes do not have wearables' firmware.
Firmware Downgrade
mdaamir1989 said:
Hi,
I have Samsung Galaxy watch with the below details:
Tizen Version: 4.0.0.7.
Software Version:
R810XXU1DSL1
SM-R810NZKAINU
I would like to downgrade and change region for Samsung Pay as it isn't supported in my country.I have a couple of questions.
1. Does the above firmware version cause any problems on my Indian model ?
2. Which version of Tizen does the above firmware have ?
3. After downgrading and changing the csc, if i get an official OTA will it revert back to the original firmware ?
Also anybody tried downgrading from latest Tizen version to this version without any issues ?
EDIT :
Flashed the firmware and downgraded without any issues. Also changed the csc to XAR ,got samsung pay to work and was able to add my credit/debit cards successfully.
Applied the official OTA on top of this and Samsung pay stil works fine
Click to expand...
Click to collapse
Just got an international 42mm r810. What firmware did you use to downgrade, is it the one posted or did you look up a certain firmware off google? I would like to switch the csc to XAR, living in the US I would like to use Samsung Pay and other apps that are limited to its factory state. Also when you downgraded did you use the odin software method? Your help would be appreciated. Thank you and good evening
Hi,
I'm sorry for disturbing, but does anybody have the file or can link to it? Its already deleted. Thanx
EDIT:
Found on an unpaid website Have not tried, so use those ON YOUR OWN RISK.
AP_R810XXU1CSE1_usr.tar.md5.rar
URL= ulozto.net/file/K5ue0tLYI6TS/ap-r810xxu1cse1-usr-tar-md5-rar
BL_R810XXU1CSE1_usr.tar.md5.rar
URL= ulozto.net/file/KD16qHPlxxK4/bl-r810xxu1cse1-usr-tar-md5-rar"BL_R810XXU1CSE1_usr.tar.md5.rar
CSC_OXA_R810OXA1CSE1_usr.tar.md5.rar
URL= ulozto.net/file/Jjg3CEJSbbQN/csc-oxa-r810oxa1cse1-usr-tar-md5-rar
Marek Be said:
Hi,
I'm sorry for disturbing, but does anybody have the file or can link to it? Its already deleted. Thanx
EDIT:
Found on an unpaid website Have not tried, so use those ON YOUR OWN RISK.
AP_R810XXU1CSE1_usr.tar.md5.rar
URL= ulozto.net/file/K5ue0tLYI6TS/ap-r810xxu1cse1-usr-tar-md5-rar
BL_R810XXU1CSE1_usr.tar.md5.rar
URL= ulozto.net/file/KD16qHPlxxK4/bl-r810xxu1cse1-usr-tar-md5-rar"BL_R810XXU1CSE1_usr.tar.md5.rar
CSC_OXA_R810OXA1CSE1_usr.tar.md5.rar
URL= ulozto.net/file/Jjg3CEJSbbQN/csc-oxa-r810oxa1cse1-usr-tar-md5-rar
Click to expand...
Click to collapse
I uploaded these files
They are ok
I downgraded with them to 4.0.0.4 and changed the region.
But I used another one, I have two firmware there
https://ulozto.net/file/AWpew58BkXYG/ap-r810xxu1bsa4-usr-tar-md5-rar
https://ulozto.net/file/mpVG25qUxXI8/bl-r810xxu1bsa4-usr-tar-md5-rar
https://ulozto.net/file/uCvbIefzPGHD/csc-oxa-r810oxa1bsa4-usr-tar-md5-rar
Nmc_alves® said:
Here you can find firmware for R810
To update with netOdin see here how to do it
https://forum.xda-developers.com/showthread.php?p=78800094
R810XXU1CSE1_Tizen_3File_Multi CSC (OXA)
https://mega.nz/#!1ksz0YTJ!tMWsEd8K-jHxwfHCUFPVRFnml2Clg0JVWeIlDMSoCwQ
Sent from my SM-G975F using XDA-Developers Legacy app
Click to expand...
Click to collapse
Any chance you can do reupload?
Nmc_alves® said:
Here you can find firmware for R810
To update with netOdin see here how to do it
https://forum.xda-developers.com/showthread.php?p=78800094
R810XXU1CSE1_Tizen_3File_Multi CSC (OXA)
https://mega.nz/#!1ksz0YTJ!tMWsEd8K-jHxwfHCUFPVRFnml2Clg0JVWeIlDMSoCwQ
Sent from my SM-G975F using XDA-Developers Legacy app
Click to expand...
Click to collapse
Does anyone have a copy of the firmware as its not available on the given link now
pakos2 said:
I uploaded these files
They are ok
I downgraded with them to 4.0.0.4 and changed the region.
But I used another one, I have two firmware there
https://ulozto.net/file/AWpew58BkXYG/ap-r810xxu1bsa4-usr-tar-md5-rar
https://ulozto.net/file/mpVG25qUxXI8/bl-r810xxu1bsa4-usr-tar-md5-rar
https://ulozto.net/file/uCvbIefzPGHD/csc-oxa-r810oxa1bsa4-usr-tar-md5-rar
Click to expand...
Click to collapse
Hey,
Sorry for writing so late after the threads has been inactive for a while, but I only found out this week about this thread, since I'm trying so long to change my watch's CSC region but I can't find any firmware anywhere, and I do not know exactly how to change the firmware.
Is it possible if you could help me?
Thanks in advance.

[Q] bootloader unlock for ta-1068?

Hi friend .
Can someone tell me if techmsetos methōd will work on a Nokia 6.1 TA 1068 ?? I bought the phone online @ waiting for delivery
Bro can I just use the paid way ??
I gotta n5 that I unlocked that way no problem
The guy that I bought it of updated it to latest Pie. ?
juwelrana091 said:
I can unlock ur bootloader if ur device is in oreo and july patch installed
Click to expand...
Click to collapse
bro can I use nost or OST LA to just flash an nb0 ,, or is it diff wit the ta 1068 ??
jason_l367 said:
bro can I use nost or OST LA to just flash an nb0 ,, or is it diff wit the ta 1068 ??
Click to expand...
Click to collapse
OST only work on Bootloader unlock devices...and ntool now only support device which has july 2018 patch...after September 2018 u cant use Ntool also.
Damn. I guess I'll opt in for the Q beta or somethn. Thanks
all is not lost.
That post is created before ntool block i guess.but yes i also downgrade 7plus which is August installed... method is different
Sent from my TA-1054 using Tapatalk
alright! On Pie and unlocked
Now time for root!
:victory:
jason_l367 said:
:victory:
Click to expand...
Click to collapse
Wow..how you did? Paid service?
jason_l367 said:
all is not lost.
Click to expand...
Click to collapse
Just check this link above :good:

Changing CSC with SamKey (New version)

Guys, there´s a new SamKey version available which includes support for ALL NEW FIRMWARES (October 2020).
I just changed the CSC for my SM-G985F with FW TIB (Latest one - September patch), and it worked perfectly.
Thank mate, please give me a link for samkey.
trinhhongha90 said:
Thank mate, please give me a link for samkey.
Click to expand...
Click to collapse
Google it, it's the .org site
Does it work with HK version? (SM-G9860)
Thanks for the update! I successfully changed by G986B from BOG (Bouygues) to XEF (France), because I was annoyed of getting the bloatware when I was updating the firmware, and also because I was forced to update it manually.
Don't forget to remove the SIM card before attempting to change the CSC though. I didn't do it the first time and it didn't work, hopefully their system is smart enough that it doesn't decrease the credits if you're trying the same thing twice.
Does changing CSC allow something like bootloader unlock for US Snapdragon variants?
did someone manage to change the csc with the SM-G988B (S20 Ultra 5G Exynos) ??
thanks a lot, its means that i can change my g986b csc from atl to phe???? i have binary 4
Hi, it s posible change a csc in a s20 with bin 4? Thanks!
Best CSC for US based person, with esim, call recording and maybe retain sampay?
i tried to do it yersterday 2 times. but nothing changed
c0re_20 said:
did someone manage to change the csc with the SM-G988B (S20 Ultra 5G Exynos) ??
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Click to collapse
Yes. I did.
It worked without Problems
I had DBT csc and changed it to MAX with october secury pacht
ramoneluis said:
Yes. I did.
It worked without Problems
I had DBT csc and changed it to MAX with october secury pacht
Click to expand...
Click to collapse
I was able to change my CSC after I downgraded to G988BXXU4BTH5, but I also lost all my data.
i spend 2 credit yerterday. nothing happens.
c0re_20 said:
I was able to change my CSC after I downgraded to G988BXXU4BTH5, but I also lost all my data.
Click to expand...
Click to collapse
Its working
I never used SamKey
Can someone explain step by step how to do this please?
---------- Post added at 02:21 AM ---------- Previous post was at 02:15 AM ----------
Mwyann said:
Thanks for the update! I successfully changed by G986B from BOG (Bouygues) to XEF (France), because I was annoyed of getting the bloatware when I was updating the firmware, and also because I was forced to update it manually.
Don't forget to remove the SIM card before attempting to change the CSC though. I didn't do it the first time and it didn't work, hopefully their system is smart enough that it doesn't decrease the credits if you're trying the same thing twice.
Click to expand...
Click to collapse
Can you explain how you did this step by step please?
hi, i changed csc on my phone but now the csc is itv/itv,itv/eux/tmh. How i can change csc in itc/itv,itv/eux/itv?
mago988 said:
hi, i changed csc on my phone but now the csc is itv/itv,itv/eux/tmh. How i can change csc in itc/itv,itv/eux/itv?
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Click to collapse
You can't change the original CSC, but your current and active CSC are now ITV and that's all that matters
gehnna said:
i tried to do it yersterday 2 times. but nothing changed
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Click to collapse
gehnna said:
i spend 2 credit yerterday. nothing happens.
Click to expand...
Click to collapse
Make sure you remove your SIM card before doing it. Also, I removed all lock methods, like they mentioned, and it worked.
Hi all. I'm using note 20 ultra 5g n9860 tgy but now i bought s20 5g g9810 but chc and a can't sync samsung health data...
And is there a possibility to flash firmware for TGY region (both are g9810) or just to simply change it with this apk?!
And one more thing; this g9810 is chc version bought on tradingshanzen and comes with play store. If I make factory reset will I lose ps?
Thanks for answering amd helping [emoji2772]
Sent from my SM-N9860 using Tapatalk

SM-N975F CSC Change

I have a Samsung Galaxy Note10+ with XNC (Unknown) as CSC. It is running the October security patch. I wanted to know if there is any risk in flashing the November patch of INS CSC. I have flashed firmware of different CSC's on my J6 before, but the security patch was the same, so was wondering whether it will work in this case. Both the INS and XNZ firmware have the OXM thing in common, if that is of any help.
Any help would be appreciated.
HarshitKarwal said:
I have a Samsung Galaxy Note10+ with XNC (Unknown) as CSC. It is running the October security patch. I wanted to know if there is any risk in flashing the November patch of INS CSC. I have flashed firmware of different CSC's on my J6 before, but the security patch was the same, so was wondering whether it will work in this case. Both the INS and XNZ firmware have the OXM thing in common, if that is of any help.
Any help would be appreciated.
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Click to collapse
Hey if i get any help plz do post I'm facing the same problem need to change csc from ser to ins
mrm said:
Hey if i get any help plz do post I'm facing the same problem need to change csc from ser to ins
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Click to collapse
CSC Change:
https://forum.xda-developers.com/galaxy-s20/how-to/free-csc-change-apk-s20-t4116015
SIMPLY DOWNLOAD GOOGLE PHONE APP , DIALL THIS CODE AND ALL CSC APEAR.
*#*#27262826#*#*
Back up first, Everything on the device will be deleted.
thanks @adeltamimy6
guitarra.35 said:
CSC Change:
https://forum.xda-developers.com/galaxy-s20/how-to/free-csc-change-apk-s20-t4116015
SIMPLY DOWNLOAD GOOGLE PHONE APP , DIALL THIS CODE AND ALL CSC APEAR.
*#*#27262826#*#*
Back up first, Everything on the device will be deleted.
thanks @adeltamimy6
Click to expand...
Click to collapse
The link to the apk has been removed. Please provide the link if you have it
HarshitKarwal said:
The link to the apk has been removed. Please provide the link if you have it
Click to expand...
Click to collapse
No need for a link just download phone app by Google in playstore.
gm007 said:
No need for a link just download phone app by Google in playstore.
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Click to collapse
Yep thought you needed the theme for that lol. Did the Google phone thing and it worked

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