how can i possibly downgrade to android pie version ASJG, I have the asjg files on my pc but via odin it doesnt let me downgrade, if its to do with an updated or newer bootloader how can i downgrade, do i need to downgrade to an ealrier version of android 10 then to pie? or?
It depends on your bootloader version. Android 10 is bootloader 2 and 3 while Android 9 is bootloader 1 and 2. If you're on bootloader 3 already there's no going back. You would have to be on bootloader 2 in order to downgrade.
StoneyJSG said:
It depends on your bootloader version. Android 10 is bootloader 2 and 3 while Android 9 is bootloader 1 and 2. If you're on bootloader 3 already there's no going back. You would have to be on bootloader 2 in order to downgrade.
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Click to collapse
Yeah I'm on 3 fs
Related
I have a Xiami Redmi 4 since a while it is runnin MIUI Global 8.2 Stable, 8.2.13.0.0 (MCECNDG) but since like 6 months no updates has arrived for me, i check and the bootloader is locked, and i see now that MIUI 9 is avaible, wich procedure i need to update this little guy.
1- Unlock bootloader
2- Twrp recovery
3- Flash new rom.
????????????
Or there is another way to do it the officialy way that way i can get OTA updates?
Pd: Already tried to unlock the bootloader and this happens "Your device isn't supported by Mi Unlock"
Saludos.
Is it better to update to Oreo first before unlocking the bootloader and installing twrp? I have a brand new Zenfone 3 5.2 inch
adriansiv said:
Is it better to update to Oreo first before unlocking the bootloader and installing twrp? I have a brand new Zenfone 3 5.2 inch
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Click to collapse
Just follow my steps:
https://forum.xda-developers.com/zenfone-3/how-to/updated-unlock-relock-bootloader-t3749456
You'll unlock the bootloader unofficially & will be upgraded to Oreo (warranty will not void & you'll receive OTAs)
How to downgrade S7 Edge From Oreo to Noughat???
Azazlimbu said:
How to downgrade S7 Edge From Oreo to Noughat???
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Download Nougat or Marsh from sammobile and flash t with Odin, more instructions on sammobile.
downgrade only possible with V2 firmware files, don't flash any firmware build before the january 2018 or you will brick your device .
shah22 said:
downgrade only possible with V2 firmware files, don't flash any firmware build before the january 2018 or you will brick your device .
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Click to collapse
I am new here i dont know what is V2 firmwarefile. Can you explain what is V2 firmware?? Thanks you for advise:fingers-crossed::fingers-crossed::fingers-crossed:
I mean the bootloader version that is written in the firmware name i.e in G935FXXU2DRAG, 2 is the bootloader version of the firmware after U letter and if you are already on version 2 bootloader, you cannot flash a firmware which has 1 in place of 2..
shah22 said:
I mean the bootloader version that is written in the firmware name i.e in G935FXXU2DRAG, 2 is the bootloader version of the firmware after U letter and if you are already on version 2 bootloader, you cannot flash a firmware which has 1 in place of 2..
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Ok Thanks you bro!!!!:fingers-crossed::good:
This is useful! I tried to downgrade from 8.0 to 7.0 and bricked my device, luckily I could restore the same version I had before... even SmartSwitch don't give a damn about my device anymore.
If you have bootloader version which says XXS2 then you can't downgrade to Marshmallow and initial Nougat firmwares released till December 2017.
However, if you never upgraded your bootloader to v2 (like me), then you can downgrade to even Marshmallow without any issues. Check my phone screenshot. I am running latest Oreo firmware on v1 bootloader without any issues.
AlanDS said:
I am running latest Oreo firmware on v1 bootloader without any issues.
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How you flash latest Oreo without flasing V2 bootloader? It is possible?
Hello im new withe the phone and i dont know the secrets of the software, i want to test it with nougat and i try downloading the firmware from sammobile and install it with lastest odin, but its failed and gives me rew check bootloader and binary 2 device 4 somthing like that , how can do the roll back . im using Bulgarian SM-G950F
cropp7 said:
Hello im new withe the phone and i dont know the secrets of the software, i want to test it with nougat and i try downloading the firmware from sammobile and install it with lastest odin, but its failed and gives me rew check bootloader and binary 2 device 4 somthing like that , how can do the roll back . im using Bulgarian SM-G950F
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Click to collapse
Unfortunately if your on Oreo you won't be able to downgrade to nougat. Depending on the bootloader version number you can not even downgrade to an early version of Oreo either.
Bootloader version number is the 5th number from the right of the file name that you downloaded from sammobile. Binary 2 device 4 is telling you that your current bootloader version is 4 and you are trying to flash a version with bootloader ver 2.
Eg: G950FXXU4CRKG is a name of a file that you would download from sammobile. The number 4 ( 5th from right ) is the bootloader version number. So you can only flash with a BL 4 or higher and not lower ( ie: 3,2 or 1 )
spawnlives said:
Unfortunately if your on Oreo you won't be able to downgrade to nougat. Depending on the bootloader version number you can not even downgrade to an early version of Oreo either.
Bootloader version number is the 5th number from the right of the file name that you downloaded from sammobile. Binary 2 device 4 is telling you that your current bootloader version is 4 and you are trying to flash a version with bootloader ver 2.
Eg: G950FXXU4CRKG is a name of a file that you would download from sammobile. The number 4 ( 5th from right ) is the bootloader version number. So you can only flash with a BL 4 or higher and not lower ( ie: 3,2 or 1 )
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Thanks for the guide i understand you. And is't there a way to donwgrade the bootloader
cropp7 said:
Thanks for the guide i understand you. And is't there a way to donwgrade the bootloader
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Click to collapse
As far as I know there is no way to downgrade bootloader versions
spawnlives said:
As far as I know there is no way to downgrade bootloader versions
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Click to collapse
Okey, thanks for ur help
Hi everyone
.
i have a S8 G950FD
.
android Pie is ridiculously battery drainer so i want to downgrade to 8
.
but when i try to flash oreo stock rom with odin (OEM Unlocked) it fails and i get sw rv : Device: 8 Binary:4 error in download mode which means i cant downgrade to older bootloader !
.
however once before i had successfully downgraded from 9 to 8 (i don't remember how i solved it)
(iv'e heard since November 2019 update they have blocked bootloader downgrade)
.
any ideas ? if u know a fix help please :fingers-crossed:
.
current build : G950FXXS8DTC1
the build i want to flash: G950FXXS4CRJD
damn u Samsung
King Arc s said:
Hi everyone
.
i have a S8 G950FD
.
android Pie is ridiculously battery drainer so i want to downgrade to 8
.
but when i try to flash oreo stock rom with odin (OEM Unlocked) it fails and i get sw rv : Device: 8 Binary:4 error in download mode which means i cant downgrade to older bootloader !
.
however once before i had successfully downgraded from 9 to 8 (i don't remember how i solved it)
(iv'e heard since November 2019 update they have blocked bootloader downgrade)
.
any ideas ? if u know a fix help please :fingers-crossed:
.
current build : G950FXXS8DTC1
the build i want to flash: G950FXXS4CRJD
damn u Samsung
Click to expand...
Click to collapse
Flash the full Oreo firmware without the BL tab, then you will be downgrading to Oreo but you will still keep the Pie bootloader.
Also if you do want to downgrade the bootloader I found this thread: https://forum.xda-developers.com/galaxy-s8/how-to/guide-skipping-kg-prenormal-oneui-t3911862/amp/
JJcoder said:
Flash the full Oreo firmware without the BL tab, then you will be downgrading to Oreo but you will still keep the Pie bootloader.
Also if you do want to downgrade the bootloader I found this thread: https://forum.xda-developers.com/galaxy-s8/how-to/guide-skipping-kg-prenormal-oneui-t3911862/amp/
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have u tried this ?
i tried and odin stucked at recovery + in download mode i get kernel REV: DEVICE: 7 BINARY: 3
King Arc s said:
have u tried this ?
i tried and odin stucked at recovery + in download mode i get kernel REV: DEVICE: 7 BINARY: 3
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Click to collapse
No, I have not tried it but I thought it might work. Try downgrading the bootloader via this method https://forum.xda-developers.com/galaxy-s8/how-to/guide-skipping-kg-prenormal-oneui-t3911862
I think you can also get heimdall on Windows
Edit: I found the heimdall download page here: https://glassechidna.com.au/heimdall/
If that doesn't work I also found this thread about downgrading the bootloader with combo firmware: https://forum.xda-developers.com/galaxy-s8/help/method-to-downgrade-galaxy-s8-to-oreo-t3946240/amp/ You just have to find a combo firmware with the same binary version as your current firmware.
Downgrading the bootloader is really hard on Samsung devices if possible at all
King Arc s said:
have u tried this ?
i tried and odin stucked at recovery + in download mode i get kernel REV: DEVICE: 7 BINARY: 3
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Click to collapse
Your device is on a bit 7 bootloader. The firmware you are trying to flash is a revision 3. You cannot downgrade your revision. 5th digit from far right end in firmware is your software revision
hi i have a sm-g955f
with g955fxxs7dta6 base band
can i downgrade from android 9 to android 8?
thanks
geppy33 said:
hi i have a sm-g955f
with g955fxxs7dta6 base band
can i downgrade from android 9 to android 8?
thanks
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Click to collapse
Same as post as above yours check all the Android 8 firmwares if they are the same bit number as Android 9 then yes. If not. No
so in my case I have to find a custom android 8 rom with bit 7?
and if I put a custom rom with a lower rev bit can I downgrade?
having rooted and having twrp?
if it has knox, most likely not
[QUOTE = "avipars, post: 84174127, member: 7551187"]
se ha knox, molto probabilmente no
[/CITAZIONE]
knox is 0x1 therefore no guarantee
geppy33 said:
and if I put a custom rom with a lower rev bit can I downgrade?
having rooted and having twrp?
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Click to collapse
I don't think you can