Question Is It Possible to downgrade from Android 12 to 11? - Samsung Galaxy S21+

Hello,
The same question as the title, is it possible to downgrade android version 12 to 11? I feel that it runs too badly on android 12 compared to its previous version.
I already tried via odin, from G996BXXU5CVDD (current OS 12 installed on my cell phone) to G996BXXU3AUIE (the latest version of Android 11 available from my carrier); but when "starting" the process, it fails and on my cell phone it appears as "sw rev check fail (bootloader) device 0x5 binary 0x3".
plz Help
Thanks!

Depends on the bootloader version.
The 5th digit of the rom must the same or higher than the bootloader's 5th significant number/letter, it can't be lower.
In this case that number is 2:
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"lightbox_share": "Share",
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"lightbox_new_window": "New window",
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blackhawk said:
Depends on the bootloader version.
The 5th digit of the rom must the same or higher than the bootloader's 5th significant number/letter, it can't be lower.
In this case that number is 2:
View attachment 5687605
Click to expand...
Click to collapse
ok, so I can´t go back D:!!!!!!!

Protosolid said:
ok, so I can´t go back D:!!!!!!!
Click to expand...
Click to collapse
Ouch.
If it was a OTA update you can as long as the bootloader wasn't upgraded too.
If it came loaded with 12 the bootloader probably is also upgraded.
This is one thing I hate about stock Samsung's.
My one N10+ came loaded with 10 and the other is still running on 9. I prefer Pie, it's more 3rd party app friendly and easier to troubleshoot.
So yeah, I feel your pain

Rip. Android 12 sucks, I reverted back to 11 after less than a day of use. 13 doesn't seem like it'll get much better either.

Related

Miui 10 for mi4 chinese

Hi My Xiaomi MI4 recently has been showing notification of UPDATE available TO version MIUI 10. Should I update it ?
I've heard it doesn't change nothing at all. and beside it once you update to it, you can't downgrade to previously version.
tiagosarmento said:
Hi My Xiaomi MI4 recently has been showing notification of UPDATE available TO version MIUI 10. Should I update it ?
I've heard it doesn't change nothing at all. and beside it once you update to it, you can't downgrade to previously version.
Click to expand...
Click to collapse
It may slow down the phone. But it will also give new looks and better features. Also, there is always an option to downgrade if you can use your laptop and spend some time to install any custom rom. (Will also void the guarantee)
It's a good choice to update to MIUI 10.
tiagosarmento said:
Hi My Xiaomi MI4 recently has been showing notification of UPDATE available TO version MIUI 10. Should I update it ?
I've heard it doesn't change nothing at all. and beside it once you update to it, you can't downgrade to previously version.
Click to expand...
Click to collapse
I've tried the lastest version of MIUI for cancro(MIUI10 8.9.13) for nearly one year. Before Febuary, 2019, I tried the PixelExperience(based on Android 8.1) and its new features & mini size touched me(I can use my face to unlock by Google Smart Lock. And 16GB isn't enough nowadays). But finally I missed the convenient settings and stability of MIUI, and Android 6.0 can still running most of the apps.
Of course, I have deleted some useless system apps(for me) like Mi Video\Mi Game\Mi Browser. In this case, I installed MX Player and Via(also Google Webview Core). To make the ROM better, I also changed the theme(bar, lockscreen), fonts(changed to MiLanPro by an app[because Magisk doesn't work on this ROM]), launcher(with a good icon package) and wallpaper. It doesn't slow down the phone. Just try it!
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downgrade OS

Is it possible to downgrade to from android 9 back to Android Oreo. ( Flashed it via odin)
Dantar0 said:
Is it possible to downgrade to from android 9 back to Android Oreo. ( Flashed it via odin)
Click to expand...
Click to collapse
For you to down grade you could only if example.
Build xxu4
Build xxu4.
Could not down grade to xxu3.
This whole update is going to take a long time you are better waiting.
Personally mine most likely never see update I'm going to sell it.
mchlbenner said:
For you to down grade you could only if example.
Build xxu4
Build xxu4.
Could not down grade to xxu3.
This whole update is going to take a long time you are better waiting.
Personally mine most likely never see update I'm going to sell it.
Click to expand...
Click to collapse
Can you write how to do it ?? I have the same problem that I can not go back to oreo , which soft should I download ??
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"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
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"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
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adek89 said:
Can you write how to do it ?? I have the same problem that I can not go back to oreo , which soft should I download ??
Click to expand...
Click to collapse
This is the only one you can download grade to but I'm not 100% sure.
You have skipped flashing new bootloader and see if you could bootup without it.
mchlbenner said:
This is the only one you can download grade to but I'm not 100% sure.
You have skipped flashing new bootloader and see if you could bootup without it.
Click to expand...
Click to collapse
I did not have time to wait, I downloaded the filer and it worked
adek89 said:
I did not have time to wait, I downloaded the filer and it worked
Click to expand...
Click to collapse
What ever you don't flash new bootloader or modern.
mchlbenner said:
What ever you don't flash new bootloader or modern.
Click to expand...
Click to collapse
I think I'll have to downgrade to the recent one which is thr February 2019 security patch on 8.0. Do I need to turn on OEM unlock? I've checked that I am on xxu4

Downgrading note 20 ultra from android 11 to android 10 *Urgent*

Hello Everyone,
I recently purchased n986u1 but realized they have closed the option to unlock the bootloader after the recent patch.
2 days later I purchased an Exynos variant is shipped with android 12 and somehow managed to downgrade to android 11.
I'm a full-time oneplus/ iPhone user and was not aware of the binary issue on Samsung. Want to downgrade to android 10 doest matter if its custom ROM or anything else
Current software version-
Android 11
n985fxxs3dug9
Help will be highly appreciated
Very happy to donate something for future development.
The bootloader was updated so rolling back past 11 likely isn't possible.
The last new Samsung Note that shipped with Android 10 is the N10+. New ones are still for sale.
You can roll back to the same and a higher version than the bootloader/build number. That significant digit is the 5th from the end.
Here's how to read and interpret what you got.
Example, in this case it is 2, a N10+ running on Pie:
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
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"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
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blackhawk said:
The bootloader was updated so rolling back past 11 likely isn't possible.
The last new Samsung Note that shipped with Android 10 is the N10+. New ones are still for sale.
You can roll back to the same and a higher version than the bootloader/build number. That significant digit is the 5th from the end.
Here's how to read and interpret what you got.
Example, in this case it is 2, a N10+ running on Pie:
View attachment 5552843
Click to expand...
Click to collapse
cant even flash a samsung custom rom?
Checking SamFW there's Android 11 and Android 12 Samsung stock ROMs compatible with the lastest BL revision. Going back to Android 10 wouldn't change your bootloader version, regardless. There may be some method that I've missed, but it's unlikely that it will be worth the time/effort to get there.
You can flash Android 11 (As I did originally) since there's a version compatible with the BL revision, or flash Android 12.
Edit: If your goal is just to root the device, check out https://forum.xda-developers.com/t/...-dr-ketan-rom-i-oneui-4-0-i-oneui-3-1.4154487

Question Downgrade from UI 5.1 to UI 5.0

Good day all,
I'm currently running the latest firmware update for the SM-S908W model One UI 5.1 Feb 2023.
The notification icon pallet is driving me nuts and I know there are work arounds, but I am interested in downgrading from One UI 5.1 to One UI 5.0.
Is simply flashing the stock firmware in Odin capable of accomplishing this task or is there a possibility of bricking or other unforeseen issues?
If it is possible, can someone direct me to a guide?
Please and thank you!
You can usually use Odin to downgrade, provided your bootloader is unlocked. Keep in mind that certain bootloader versions will not permit downgrading.
V0latyle said:
You can usually use Odin to downgrade, provided your bootloader is unlocked. Keep in mind that certain bootloader versions will not permit downgrading.
Click to expand...
Click to collapse
Thank you!
I used this video as a guide. I can confirm I have successfully downgraded to One UI 5.0!
Make sure you download the latest Samsung USB Drivers (https://developer.samsung.com/android-usb-driver) so your device is recognized by Odin.
Cheers
Cthulhus said:
Good day all,
I'm currently running the latest firmware update for the SM-S908W model One UI 5.1 Feb 2023.
The notification icon pallet is driving me nuts and I know there are work arounds, but I am interested in downgrading from One UI 5.1 to One UI 5.0.
Is simply flashing the stock firmware in Odin capable of accomplishing this task or is there a possibility of bricking or other unforeseen issues?
If it is possible, can someone direct me to a guide?
Please and thank you!
Click to expand...
Click to collapse
You can downgrade as long as the binary is the same.
You don't need to unlock the bootloader
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"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}

Update LG Wine Smart from Android 4 to 5 or 6?

Apologies for posting here but there is no forum for the LG Wine Smart (D486). Mine currently has stock 4.4.2 KitKat. Aw remember that? LG update app no longer functions correctly as it was shut down in 2020.
Is there any way to update this to 5 or preferably 6? There is an app I need that isn't compatible with Android 4.
You have to find
1. A Custom ROM suitable to phone ( specs: 1 GB RAM, 4 GB max storage )
2. If found, a Custom Recovery suitable to phone to flash the Custom ROM found
Many thanks. Sorry for the questions but if you were me, where would you look first?
Alternatively I wanted to make it clear that this phone officially shipped with Android 5.1 later in its life. I just happen to have an earlier 4.4.2 version. Where might I find the official 5.1 ROM and flash it?
Edit: I have found some options that I will try at http://lg-roms.com/lg-firmware/lg-h410/h41010d/2879
I'm not having any luck @jwoegerbauer . It turns out 4.4.2 was the latest official ROM for this phone.
Would you be able to assist a little? If you were me, where would you look first (as in URLs) to get a custom Android 6 ROM and recovery?
I'd like to update to Android 6 or higher. All the apps I want to install require Android 6+.
I'd just need to make sure it can recognise input from the LG Wine Smart D486 keypad.
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"lightbox_full_screen": "Full screen",
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"lightbox_download": "Download",
"lightbox_share": "Share",
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"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
Thanks in advance!
P.S. Cute baby!
Aww, that's cute
XanderXDA said:
Aww, that's cute
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Click to collapse
The LG flip or the baby?
CJSnet said:
The LG flip or the baby?
Click to expand...
Click to collapse
Can I say both?

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