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Odin to downgrade Samsung galaxy note 8

Hi,
I have updated my unrooted note 8 to the android Pie but unfortunately I didn't like the new awful UI also I missed some good features in android Oreo. So, is it possible to use Odin to downgrade unrooted note 8. I'm not interested to root it, just want to downgrade it to official Oreo.
One more question, I even liked Android Nougat than Oreo. So is it possible to downgrade from Pie to Nougat using Odin without rooting?
thanks

mdxii said:
Hi,
I have updated my unrooted note 8 to the android Pie but unfortunately I didn't like the new awful UI also I missed some good features in android Oreo. So, is it possible to use Odin to downgrade unrooted note 8. I'm not interested to root it, just want to downgrade it to official Oreo.
One more question, I even liked Android Nougat than Oreo. So is it possible to downgrade from Pie to Nougat using Odin without rooting?
thanks
Click to expand...
Click to collapse
You can go back to oreo as long as the bootloader is the same.
You'll have to do a factory reset though.
eg.
Oreo firmware: N950FXXS5CSA2
PIE firmware: N950FXXU5DSA2
Notice the 5 before "DSA2" and the "CSA2" that's the bootloader version. So since the pie and oreo firmware has the same bootloader version you can go back to oreo.
You can NOT go back to Nougat different bootloaders.
eg.
Nougat firmware: N950FXXU3BRA8
PIE firmware : N950FXXS5DSB2
Notice the 3 before "BRA8" and 5 before "DSB2" they don't match!
So the bootloader version 5 will NOT downgrade itself to version 3 therefore Odin will give you a failed error message.

To be is a different question . I have a problem, I want flash the rom with pie generic Spain, now I am in Vodafone pie and Odin always say fail, what can I do?, thanks.

pato66 said:
To be is a different question . I have a problem, I want flash the rom with pie generic Spain, now I am in Vodafone pie and Odin always say fail, what can I do?, thanks.
Click to expand...
Click to collapse
What is your csc?
Spain is PHE in multi-CSC OXM
Vodafone is ATL in OVF Csc firmware.
If you used home-CSC and it fails only option is to use the CSC file (this will delete data so backup first.)
The multi-CSC oxm doesn't have ATL csc inside so you'll lose any carrier specific features (maybe???) So do some research first.

CSC Questions
Hello everybody, I've found myself in the position of needing to downgrade from Pie back to Oreo also.
My question revolves around this "MYSTERIOUS" Samsung "CSC" designation, and the difficulties in verifying what I have vs what I NEED
I have an unlocked SM-N950U1 which is currently running on the Verizon network in the United States
I do NOT have any of the Verizion specific features, ie.... "My Verizon" or even "Verizon Visual VoiceMail"
the phone has also been on the AT&T network previously again with no carrier specific features there either.
Since the "secret code" for the dialer didn't work to reveal my CSC, and there is no carrier software version entry in my about phone software information to reveal the CSC either, I downloaded one of the generic "phone info" apps and it reports VZW as currently active CSC on the CSC tab, but then on the firmware tab in the CSC version location its reporting "N950U1OYM5DSC1" and I have found zero reference to an "OYM" CSC anywhere.
I have downloaded both the PIE and OREO variants of the "XAA" firmware for my Note 8
Does anybody have any idea if this is going to be the correct firmware to accomplish this downgrade without bricking this darn thing, I have no interest in root nowadays because the minuses out weigh the pluses and I really don't want to trigger knox and loose google pay or any of my banking apps, but I really do use and need to use the call recording capabilities that still worked in Oreo, and not anymore in Pie
Thanks in advance
Dan

BluePhnx said:
You can go back to oreo as long as the bootloader is the same.
You'll have to do a factory reset though.
eg.
Oreo firmware: N950FXXS5CSA2
PIE firmware: N950FXXU5DSA2
Notice the 5 before "DSA2" and the "CSA2" that's the bootloader version. So since the pie and oreo firmware has the same bootloader version you can go back to oreo.
You can NOT go back to Nougat different bootloaders.
eg.
Nougat firmware: N950FXXU3BRA8
PIE firmware : N950FXXS5DSB2
Notice the 3 before "BRA8" and 5 before "DSB2" they don't match!
So the bootloader version 5 will NOT downgrade itself to version 3 therefore Odin will give you a failed error message.
Click to expand...
Click to collapse
Hi, i just came to this conclusion! i am currently running N950FXXU7DSJ1 and odin always gives me error when i try to downgrade. no matter newest or older version. so there is no possible way to downgrade?
What if i unlock bootloader(if its possible for currently last version), change to custom recovery and install any custom rom(nougat?) and maybe flash bootloader via custom rom also? will this option be possible at all?

Changing CSC from ZTO to AUT (without Switzerland SIM Card)?

Hi, I want to change my CSC to AUT/AUT/AUT/ZTO (I've read that you can't change the last code...) to get faster updates.
I live in Brazil (ZTO) so I'm doing this just to get updates faster. If I flash via ODIN the newest firmware using CSC instead of HOME_CSC will I be able to achieve AUT/AUT/AUT/ZTO and get OTA updates?
Will it trip Knox?
Will I ever be able to return to ZTO/ZTO/ZTO/ZTO? Thanks!

Ezito said:
Hi, I want to change my CSC to AUT/AUT/AUT/ZTO (I've read that you can't change the last code...) to get faster updates.
I live in Brazil (ZTO) so I'm doing this just to get updates faster. If I flash via ODIN the newest firmware using CSC instead of HOME_CSC will I be able to achieve AUT/AUT/AUT/ZTO and get OTA updates?
Will it trip Knox?
Will I ever be able to return to ZTO/ZTO/ZTO/ZTO? Thanks!
Click to expand...
Click to collapse
Normally no need to worry about the last part(ZTO). The main thing for you to get AUT. So if you flash regular CSC file it will wipe your data, but HOME CSC should not. I always used CSC file when flashing firmware. Try to see if you can get results you want from the first flash. In my case, I re-flashing 2 or 3 times to get what I wanted and used 3 different Odin versions. Normally after flashing, when you put your sim card in(on the welcome screen), the phone should see the sim and tell you if you want to apply carrier settings(do it) and phone will restart.
If you use official Samsung firmware, it should not trip Knox(never had issue with this)
You can flash your phone back to original ZTO firmware, when you need to.
In my case, I have S10e(single sim) unlocked(XAA) - US version. When I first put my sim card in, the phone applied carrier settings(T-Mobile) and became TMB/TMB/XAA, but the firmware was still from unlocked model. After that, I flashed T-Mobile firmware onto my phone and got features that T-Mobile branded S10e has.

pay nao funciona
Charkatak said:
Normally no need to worry about the last part(ZTO). The main thing for you to get AUT. So if you flash regular CSC file it will wipe your data, but HOME CSC should not. I always used CSC file when flashing firmware. Try to see if you can get results you want from the first flash. In my case, I re-flashing 2 or 3 times to get what I wanted and used 3 different Odin versions. Normally after flashing, when you put your sim card in(on the welcome screen), the phone should see the sim and tell you if you want to apply carrier settings(do it) and phone will restart.
If you use official Samsung firmware, it should not trip Knox(never had issue with this)
You can flash your phone back to original ZTO firmware, when you need to.
In my case, I have S10e(single sim) unlocked(XAA) - US version. When I first put my sim card in, the phone applied carrier settings(T-Mobile) and became TMB/TMB/XAA, but the firmware was still from unlocked model. After that, I flashed T-Mobile firmware onto my phone and got features that T-Mobile branded S10e has.
Click to expand...
Click to collapse
Olá... sou do Brasil e comprei meu S10+ SM-G975O Snapdragon 855 no eBay e o Samsung Pay não funciona!!!!! o que devo fazer

ederlucasrezende said:
Olá... sou do Brasil e comprei meu S10+ SM-G975O Snapdragon 855 no eBay e o Samsung Pay não funciona!!!!! o que devo fazer
Click to expand...
Click to collapse
I think you may have a Chinese version of S10+. I think they have 2 CSC versions: TGY which is Hong Kong and CHC which is Open China. Find out which one you have, TGY or CHC. I don't know for sure, but when I searched online, it shows that Samsung Pay is supported in Hong Kong.

Trouble updating Galaxy Note 9

Hi i am new here and need help with updating my Samsung note 9 i still have a baseband N960USQS1ARI5 but will like to update to the latest firmware. i'm using an unlocked AT&T phone. can anyone guide me? I'm not sure if updating the firmware will lock the phone and the process to update, do I just update the firmware in stages as the updates were released till i get to the latest update or can i update straight up to the latest? I am thinking of using Odin, is that a safe way to do this? any help will be appreciated. Lastly, can I change from the AT&T firmware to lets say a none carrier based firmware so as to stop seeing the AT&T logo on boot up? Maybe switch to a firmware that supports global or international? Does anyone have links to an unlocked firmware update i can use, as well? Please help!
I must state that the phone never updates automatically as it always says the software is up to date.

mtrackerbeyond said:
Hi i am new here and need help with updating my Samsung note 9 i still have a baseband N960USQS1ARI5 but will like to update to the latest firmware. i'm using an unlocked AT&T phone. can anyone guide me? I'm not sure if updating the firmware will lock the phone and the process to update, do I just update the firmware in stages as the updates were released till i get to the latest update or can i update straight up to the latest? I am thinking of using Odin, is that a safe way to do this? any help will be appreciated. Lastly, can I change from the AT&T firmware to lets say a none carrier based firmware so as to stop seeing the AT&T logo on boot up? Maybe switch to a firmware that supports global or international? Does anyone have links to an unlocked firmware update i can use, as well? Please help!
I must state that the phone never updates automatically as it always says the software is up to date.
Click to expand...
Click to collapse
to your last point, at&t phones are notoriously bad at updating
factory unlocked phones will remain forever unlocked and phones unlocked that are bespoke to a specific carrier will also remain unlocked even with Odin flashes providing that the method employed to unlock it was legitimate. Some unlock methods employ root and only trick the phone into thinking its unlocked. Well, once you remove root, and thusly the trick, the unlock is gone. I have ran across rare examples where the person swore up and down that they unlocked their phone with a legit unlock code and that it relocked to a carrier once the sim was inserted and initial programming completed, but i dunno. Sounds weird to me, but every person who said this also said that the phone locked to a carrier other than the one it came from originally. Take that for what its worth, but i still mostly stand by the first couple lines of this section of my diatribe
If you want the at&t crap gone, get the N960U1 firmware and flash it in Odin. You will need the modified version of Odin to flash it so it can ignore the 255 errors the phone throws up from flashing firmware for a carrier (or, in this case, no carrier) on to a phone that it wasnt originally designated (not designed) for
go to sammobile.com/firmwares, get the info for the firmware you want to d/l, get the Frija tool or Samfirm and download the firmware thru one of those as theyre literally 5x faster and flash it

mtrackerbeyond said:
Hi i am new here and need help with updating my Samsung note 9 i still have a baseband N960USQS1ARI5 but will like to update to the latest firmware. i'm using an unlocked AT&T phone. can anyone guide me? I'm not sure if updating the firmware will lock the phone and the process to update, do I just update the firmware in stages as the updates were released till i get to the latest update or can i update straight up to the latest? I am thinking of using Odin, is that a safe way to do this? any help will be appreciated. Lastly, can I change from the AT&T firmware to lets say a none carrier based firmware so as to stop seeing the AT&T logo on boot up? Maybe switch to a firmware that supports global or international? Does anyone have links to an unlocked firmware update i can use, as well? Please help!
I must state that the phone never updates automatically as it always says the software is up to date.
Click to expand...
Click to collapse
Hi, my phone is a Note 9 ATT factory unlocked.
Below is the link for my post
I've updated my phone using the link , and still unlocked and working Ok.
I hope it can help you .
https://www.google.com/amp/s/forum....note-9-att-rom-update-sept-2019-t3979303/amp/

N960F/DS Swap firmware region

I have Note 9 with Indonesian Firmware and im thinking to flash Australian firmware. I checked the phone model number and its exactly same (N960F/DS). what im worried about is
1. if I flash Australian firmware, would I keep getting the notification if theres any patch / software update or I'll have to find the update manually?
2. if I still get the patch / software update notification, would I get the Australian ver. or the original (Indonesian) ver? (im afraid if its different)
3. Would Samsung Pay System work in Australian firmware? ( I read if you flash different firmware to the phone model, some functions wont work including Samsung Pay System).
Any help would greatly appreciated

1. if I flash Australian firmware, would I keep getting the notification if theres any patch / software update or I'll have to find the update manually?
if you flash the firmware with the Austrailian CSC, you will only get updates from carriers within that CSC in accordance with what network your SIM is connecting to. Only time you flash them manually is if you have an aftermarket recovery such as TWRP
2. if I still get the patch / software update notification, would I get the Australian ver. or the original (Indonesian) ver? (im afraid if its different)
see above
3. Would Samsung Pay System work in Australian firmware? ( I read if you flash different firmware to the phone model, some functions wont work including Samsung Pay System).
samsung pay doesnt work in certain countries period. that might be what youve been seeing

Youdoofus said:
1. if I flash Australian firmware, would I keep getting the notification if theres any patch / software update or I'll have to find the update manually?
if you flash the firmware with the Austrailian CSC, you will only get updates from carriers within that CSC in accordance with what network your SIM is connecting to. Only time you flash them manually is if you have an aftermarket recovery such as TWRP
2. if I still get the patch / software update notification, would I get the Australian ver. or the original (Indonesian) ver? (im afraid if its different)
see above
3. Would Samsung Pay System work in Australian firmware? ( I read if you flash different firmware to the phone model, some functions wont work including Samsung Pay System).
samsung pay doesnt work in certain countries period. that might be what youve been seeing
Click to expand...
Click to collapse
I tried to flash with Global Australian CSC (not for any specific carrier) and I was be able to get update OTA. Now, the problem is after I flashed Au firmware (incl, BL, AP, CP, CSC) with Odin3B, somehow the service provider software has changed to AUT/AUT/XID while previously XID/XID/XID which is weird. I tried flash using HOME CSC file and couple times I re-download the firmware and flashed other unlocked au firmwares (with android 10 version) it still gave me AUT (Switzerland) instead of XSA (Australia).
Any idea why?

Flashing firmware from a different region

Hi all, I'm new to modding in general so there's many things I don't quite understand, hoping somebody can help.
I bought an S10 from a site which was supposed to just send me a refurbed (italian) S10, instead they sent me the US version, (G973U) and I believe it is carrier locked since it's stuck with Android 9 and doesn't find any update.
I have tried searching to no avail what I should flash to simply unbrand it, and allow it to receive OTA updates without tripping Knox.
The build version is the following: PPR1.180610.011.G973USQU2ASGC and the CRC is XAA/XAA/ATT
Thanks in advance.

You shall call them.

Who and what for? I'm past the point of dealing with those sellers, I just want to flash the phone.

CSC (not CRC).
XAA is a multi-region USA ROM, so I don't think it will change over properly for you in Italy. There are threads here for how you reflash a different ROM. The one I used for my S10+ was this one: https://forum.xda-developers.com/t/...e-links-and-flashing-discussion-here.3905897/ but I am sure there is one like that for your S10 non-plus... find it, follow the instructions, and you should be all set.

Thanks! I'm a newbie, what does it mean it wouldn't change properly? No OTAs? Tripping KNOX?
I have found this which seems to be the equivalent of the link you posted.
So, I should flash the U1 version right? However I see only a file "SAU - 1 - ....", and my build number doesn't end in that, furthermore I don't know which bootloader version I'm at.

lrzfc said:
Who and what for? I'm past the point of dealing with those sellers, I just want to flash the phone.
Click to expand...
Click to collapse
Oh ok. I couldn't understand first.
For that, You'll flash in EDL mode. But the problem is if your device is powered by a snapdragon chip, it'll not working seamlessly.

FardinIslam said:
Oh ok. I couldn't understand first.
For that, You'll flash in EDL mode. But the problem is if your device is powered by a snapdragon chip, it'll not working seamlessly.
Click to expand...
Click to collapse
No problem. I'm aware of the mode I have to enter to flash, as above I'm trying to figure out which stock rom I should flash to avoid tripping knox, and to receive OTAs. What won't work seamlessly?

Well, mods can close the thread, found the way to do it. Leaving it in case somebody ever needs it.
First, found & checked the bootloader version (5th number from the right in the build version) since you can only flash older bootloader versions apparently.
Then downloaded through Frija the rom for the unlocked phone variant (SM-G973U1) and the unbranded CSC (XAA)
Then using odin 3.13.3b flashed the rom

Watch this video

lrzfc said:
Well, mods can close the thread, found the way to do it. Leaving it in case somebody ever needs it.
First, found & checked the bootloader version (5th number from the right in the build version) since you can only flash older bootloader versions apparently.
Then downloaded through Frija the rom for the unlocked phone variant (SM-G973U1) and the unbranded CSC (XAA)
Then using odin 3.13.3b flashed the rom
Click to expand...
Click to collapse
Hello, I'm in more or less same situation. When you flashed, which files did you use? All of them or just the AP_*** file?

Never mind. Flashed it anyway, now I don't see the AT&T startup screen anymore which is promising. Firmware version is now Android 11 (SM-G973U1 and not SM-G973U) on XAA CSC. Will see if I get any firmware updates later.