Hello, I have my note 9 exynos version (country:XSG) Running one Ui (CSFA) Which have bootloader version 3. Now i want to downgrade to oreo (ARL4) which has bootloader version 2. While flashing via odin i had the error “sw rev check fail bootloader device 3 binary 2”.
Any guide/tips will be greatly appreciated. Please ask me for any further information required.
Can't be done
AAoptimized said:
Hello, I have my note 9 exynos version (country:XSG) Running one Ui (CSFA) Which have bootloader version 3. Now i want to downgrade to oreo (ARL4) which has bootloader version 2. While flashing via odin i had the error “sw rev check fail bootloader device 3 binary 2”.
Any guide/tips will be greatly appreciated. Please ask me for any further information required.
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search and read. especially about downgrading the bootloader
I believe, if you have bootloader version 3 it's not possible to downgrade. I have downgraded international unlocked Note 9 back to ARL4 version back in January. There is a huge discussion here on xda how to do it, but unfortunately I think it can't be done in your case.
Related
I'm currently on 8.0.0 version and I want to downgrade to 7.1.1. I need help with the downgrade version
I've tried N950USQU2BQLA and N950USQU3BRA9 and both failed.
My carrier is TMOBILE
Your 8.0 bootloader version is 4. You are trying to downgrade to a lower version. You can't.
And next time please read and search. The phone is now 8 months old, plenty of info out there !
Sent from my Note 8 using XDA Labs
kennybon said:
I'm currently on 8.0.0 version and I want to downgrade to 7.1.1. I need help with the downgrade version
I've tried N950USQU2BQLA and N950USQU3BRA9 and both failed.
My carrier is TMOBILE
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Click to collapse
What is your current Firmware on your device?
i have downgraded from 8.0 to 7.1.1 with odin
gzimzzz said:
i have downgraded from 8.0 to 7.1.1 with odin
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Ok. It depends on what firmware he is on. If he is on U4 oreo its impossible for him to downgrade
me2151 said:
Ok. It depends on what firmware he is on. If he is on U4 oreo its impossible for him to downgrade
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If you don't mind me asking, why would it be impossible to downgrade if he's on U4? What would cause the process to be impossible?
Max_Terrible said:
If you don't mind me asking, why would it be impossible to downgrade if he's on U4? What would cause the process to be impossible?
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Click to collapse
What he wants is to downgrade to 7.1.1 which is possible if he is on u3(keep in mind i am referring to the bootloader version). On U4 there is ONLY 8.0. They did not release a 7.1.1 on U4 bootloader. Any time there is a major bootloader revision(such as u3 to u4 bootloader) Samsung blows a qfuse preventing older firmware from being installed(you can only flash firmware that is on the same incriment or newer) meaning if you are V1 bootlaoder you can flash either v1- v4 HOWEVER the moment you flash a higher version(if you go from v1 to v2) you are now stuck on v2 and higher and can no longer flash v1.
Based on the OPs provided information I assume he is on v4 bootloader because he is unable to flash v2 and v3 firmware. Because he is on the v4 bootloader he cannot flash 7.1.1 firmware which was last on U3. At this point his only option is to stick with U4 firmware(8.0 only).
me2151 said:
What he wants is to downgrade to 7.1.1 which is possible if he is on u3(keep in mind i am referring to the bootloader version). On U4 there is ONLY 8.0. They did not release a 7.1.1 on U4 bootloader. Any time there is a major bootloader revision(such as u3 to u4 bootloader) Samsung blows a qfuse preventing older firmware from being installed(you can only flash firmware that is on the same incriment or newer) meaning if you are V1 bootlaoder you can flash either v1- v4 HOWEVER the moment you flash a higher version(if you go from v1 to v2) you are now stuck on v2 and higher and can no longer flash v1.
Based on the OPs provided information I assume he is on v4 bootloader because he is unable to flash v2 and v3 firmware. Because he is on the v4 bootloader he cannot flash 7.1.1 firmware which was last on U3. At this point his only option is to stick with U4 firmware(8.0 only).
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Thank you for explaining this to me. It makes sense.
EDIT: I Google'd how to check which bootloader you' re on, and actually found a bunch of articles that seems to explain what you just did, along with being unable to flash custom ROMs.
I need to go from 8.0 to 7.1.1 too
Hi guys I upgraded this evening from 7.1.1 bqk2 to 8.0 2cql1
It doesn't work correctly I keep getting a black screen and the phone vibrates.
The only way I've been able to fix is holding power volume up and bixby and wiping data/factory reset
Is there a link to a download for my software and a guide at all?
Forgive me for the stupid question I can't find any info out there online or a YouTube video
Thanks in advance
Joe
---------- Post added at 12:39 PM ---------- Previous post was at 12:29 PM ----------
Kingjucas said:
Hi guys I upgraded this evening from 7.1.1 bqk2 to 8.0 2cql1
It doesn't work correctly I keep getting a black screen and the phone vibrates.
The only way I've been able to fix is holding power volume up and bixby and wiping data/factory reset
Is there a link to a download for my software and a guide at all?
Forgive me for the stupid question I can't find any info out there online or a YouTube video
Thanks in advance
Joe
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Click to collapse
Just to add the reason I'm uninstalling is every time I update the always on display app it is then that I get the black screen and vibrations. Until then it is fine.
Kingjucas said:
Hi guys I upgraded this evening from 7.1.1 bqk2 to 8.0 2cql1
It doesn't work correctly I keep getting a black screen and the phone vibrates.
The only way I've been able to fix is holding power volume up and bixby and wiping data/factory reset
Is there a link to a download for my software and a guide at all?
Forgive me for the stupid question I can't find any info out there online or a YouTube video
Thanks in advance
Joe
---------- Post added at 12:39 PM ---------- Previous post was at 12:29 PM ----------
Just to add the reason I'm uninstalling is every time I update the always on display app it is then that I get the black screen and vibrations. Until then it is fine.
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Click to collapse
Maybe try a factory reset (backup first!), or install a fresh copy of the firmware using Odin. You can find the files for your device/model on Sammobile, and then download from there or through SamFirm.
hello everyone I'm the only one to this discussion to try to understand and maybe solve my problem, currently on the 8th note I android 8 (R16NW.N950FXXS5CSA1) updated by mistake with software sam firm
I wanted to go back to Android 7.1.1 I tried to insert firmware (N950FXXU3BRA8 base) but odin gives me a failed installation, reading here in the forum seems to be the fault of oreo samsung changed BL / CP making it impossible to go back, I tried but I did not found files needed for downgrade thanks to everyone for the answers
labello29 said:
hello everyone I'm the only one to this discussion to try to understand and maybe solve my problem, currently on the 8th note I android 8 (R16NW.N950FXXS5CSA1) updated by mistake with software sam firm
I wanted to go back to Android 7.1.1 I tried to insert firmware (N950FXXU3BRA8 base) but odin gives me a failed installation, reading here in the forum seems to be the fault of oreo samsung changed BL / CP making it impossible to go back, I tried but I did not found files needed for downgrade thanks to everyone for the answers
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Click to collapse
Sorry You can't downgrade to nougat because you are on bootloader version "5"! (From your firmware version you are on N950FXXUS"5"CSA1, the number in "" is your bootloader version). Nougat only went upto bootloader version 3.
The current bootloader won't allow it to be downgraded only upgraded to v6 and higher.
There is no files (that I know of) that will downgrade the bootloader. You'll might have better chance on talking to Samsung and see if they can downgrade your phone.
BluePhnx said:
Sorry You can't downgrade to nougat because you are on bootloader version "5"! (From your firmware version you are on N950FXXUS"5"CSA1, the number in "" is your bootloader version). Nougat only went upto bootloader version 3.
The current bootloader won't allow it to be downgraded only upgraded to v6 and higher.
There is no files (that I know of) that will downgrade the bootloader. You'll might have better chance on talking to Samsung and see if they can downgrade your phone.
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so it was true that small article that I read on google that samsung stopped the downgrade ... damn therefore not proceeding gradually "4" up to the number "3"?
labello29 said:
so it was true that small article that I read on google that samsung stopped the downgrade ... damn therefore not proceeding gradually "4" up to the number "3"?
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Click to collapse
You can't downgrade the bootloader. Period. That actually why they change the bootloader version...to prevent you from downgrading.
I realized that my galaxy note 8 is not Italian but Europe on download mode me other carrier id
when I arrived for fear that it would not work in Italy I updated it with odin definitely wrong to bring it to android 8
Hi all,
My Note 8 is currently running Android 9 (official), with baseband N950FXXU6DSD3. Given the phone is turning sluggish day by I thought it would be a good idea to downgrade to Android 8. Well, I downloaded Odion and the official firmware for N950F but Odin gave me an error. Googled and found it is probably because the baseband / bootloader is l6 and the firmware I was installing was l5. However, I couldnt find any official android 8 version with bootloader l6.
Just wondering if there is an alternate was of downgrading without tripping Knox/ Samsung Pay?
Thanks!
kamer4u said:
Hi all,
My Note 8 is currently running Android 9 (official), with baseband N950FXXU6DSD3. Given the phone is turning sluggish day by I thought it would be a good idea to downgrade to Android 8. Well, I downloaded Odion and the official firmware for N950F but Odin gave me an error. Googled and found it is probably because the baseband / bootloader is l6 and the firmware I was installing was l5. However, I couldnt find any official android 8 version with bootloader l6.
Just wondering if there is an alternate was of downgrading without tripping Knox/ Samsung Pay?
Thanks!
Click to expand...
Click to collapse
Nope not possible you're stuck on bootloader version 6 and there's no going backwards now!
There is no Android 8 rom with v6 bootloader? Also, if I choose OEM unlock will it still trip my Knox even if I install official firmware?
kamer4u said:
There is no Android 8 rom with v6 bootloader? Also, if I choose OEM unlock will it still trip my Knox even if I install official firmware?
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Click to collapse
No OEM unlocking will not trip your Knox flag. However, if you install twrp and root the phone that's when you'll trip knox. If you're thinking that toggling the OEM button will allow you to downgrade backwards it's not going to happen! I personally don't know of any Android 8 on bootloader version 6. This is why we preach not to accept updates or buy a phone that's already been updated because there's just no going back once you update! We haven't found a way to do that and I don't think anyone is actually spending their time to try to figure that out either.
Ah ok. Thanks. Guess I am stuck on a laggy OS.
I am on dec 12 android 10 update right now. I've always wanted to try an early version of android 9 to check some different display qualities. But it obviously has older bootloader version. İf i install twrp, can i flash an update with older bootloader?
-Im rooted with magisk
theblitz707 said:
I am on dec 12 android 10 update right now. I've always wanted to try an early version of android 9 to check some different display qualities. But it obviously has older bootloader version. İf i install twrp, can i flash an update with older bootloader?
-Im rooted with magisk
Click to expand...
Click to collapse
No. Samsung won't allow you to flash lower bootloader version numbers firmware.
spawnlives said:
No. Sansung won't allow you to flash lower bootloader version numbers firmware.
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Click to collapse
Can I downgrade the Samsung Bootloader from SW Rev 3 to 2?
Hi, I want to downgrade my SM-A310F to earlier Android versions, but Odin blocks this with the Error: "SW REV. CHECK FAIL. DEVICE: 3. BINARY: 2." So apparently I can only install firmware files which come with the same Bootloader I'm currently...
forum.xda-developers.com
i saw this and thought maybe its possible
theblitz707 said:
Can I downgrade the Samsung Bootloader from SW Rev 3 to 2?
Hi, I want to downgrade my SM-A310F to earlier Android versions, but Odin blocks this with the Error: "SW REV. CHECK FAIL. DEVICE: 3. BINARY: 2." So apparently I can only install firmware files which come with the same Bootloader I'm currently...
forum.xda-developers.com
i saw this and thought maybe its possible
Click to expand...
Click to collapse
I have seen a few posts on downgrading OS version. They have been on older android version nothing on recent versions. I have not tried any methods to downgrade as most methods i've read there can be issues with doing so (if it works at all) in regards to something not working properly . Also all the methods i've seen don't downgrade you bootloader version.
Hey,
I have a Note 9. When I updated the firmware (from custom rom, so there is no warranty), I've got the green screen problem, so I want to downgrade it.
I'm not intrested about "it's impossible" comments, because it's a software, everything has to be possible.
So, I have binary version 9, I wanted to flash BL binary 4 and dr.ketan's ROM (Pie version).
I just want to downgrade the Bootloader version to 4, but I couldn't do it.
On S4 and S6edge, I could do it without any problem. On note 9, I can't do it.
Thanks
netuddki6 said:
Hey,
I have a Note 9. When I updated the firmware (from custom rom, so there is no warranty), I've got the green screen problem, so I want to downgrade it.
I'm not intrested about "it's impossible" comments, because it's a software, everything has to be possible.
So, I have binary version 9, I wanted to flash BL binary 4 and dr.ketan's ROM (Pie version).
I just want to downgrade the Bootloader version to 4, but I couldn't do it.
On S4 and S6edge, I could do it without any problem. On note 9, I can't do it.
Thanks
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Click to collapse
u will never can downgrade BL, because Samsung locked
Hi ; my device is G975F Exynos and Original CSC is NEE. İ am on Android 11 Firmware which is G975FXXSEFUJ2.
i plan to go back to Android 10. i do not know my device's bootloader is unlocked or not. And also do not know is it available for bootloader unlocked or not.
What shall i do ? is it possible to go back to Android 10 for this device safely ?
I'm telling my own experience with my G973F, short answer: no
My phone has a unlocked bootloader and i have TWRP, i mistakenly flashed a wrong (lower) bootloader version, and my phone didn't boot anymore, i was only able to recover using download mode.
Older android versions have older bootloader, if you manage to install an older bootloader you phone will only give a message in the top of the screen saying something like "SYSTEM REV. CHECK FAIL DEVICE 8 BINARY 7"
You can only install a lower android version if that android rom works with your current installed bootloader