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Original topic:

Downgrade One UI 2.1 to 2.0

(Topic created on: 05-14-2020 12:30 PM)
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Guru-Sandhu
Active Level 1
Options
Galaxy Note

I'm using a Note 10 plus and a few days ago I upgraded my phone to One UI 2.1 and after that My phone became very laggy . I bought this phone only for gaming as I have Youtube Channel but now Three of the major games I used to play have become unplayable. PUBG Mobile is locked at 40 fps and Call of Duty is locked at 30 and Asphalt 9 is stuck at the loading screen. I have tried alot of solutions but nothing seems to work. If anyone to could help me downgrade back to ONE UI 2.0 as I can't wait for the new Bug free update.

Mobile Model is SM-N975W

Please inform me if it will void warranty.

I have tried reinstalling games , Lower graphics , wiping cache , and even factory reset.

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CHMultimedia
Expert Level 5
Galaxy Note
Sorry, I had to deal with some other stuff first. Here are the files.

Okay, go to your computer and type this in your browser: http://chmulti.ca/N10P-BTB3 (http:// not necessary)

Download everything there. You'll probably have to unzip it, do it if necessary. If done correctly, you'll have something like Image 1.

Open the Odin folder and open the Odin executable. Disregard any warning. Click on the AP button. In the window that appears, navigate to the folder you've downloaded and select the file that starts with AP (Image 2). The file will be processed. This step will take a while.

Repeat for BL and CP (select the correct file, BL for BL, CP for CP). For CSC, select the file named HOME_CSC. Leave USERDATA blank.

Now, do a backup of your phone, just in case.

After that, turn off your phone and hold the Power and Volume Down buttons (Image 3). There will be a teal warning screen. Press Volume Up. Plug your phone to your computer and hit Start.

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26 Comments
CHMultimedia
Expert Level 5
Galaxy Note
I'd be delighted to assist you with that. Unfortunately, I am not home right now so I can't fetch the right files for you. Expect to hear back from me tonight.
Guru-Sandhu
Active Level 1
Galaxy Note

Thanks Alot sir, I'll be waiting for your reply

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Cassidy
Expert Level 5
Galaxy Note

You can check this and see if they found any solutions. this is the US forum :

https://us.community.samsung.com/t5/Note10/Game-lagging-after-the-One-UI-2-1-update/td-p/1187320

 

But i think Downgrading seems the only solution for now...

Guru-Sandhu
Active Level 1
Galaxy Note

Thanks for the reply but I've just read the post and according to them the only solution is Downgrading.

 

PS: I just tried Disabling HW Overlays which works for some of them but it made my games even worse. Games start using GPU 100% and screen starts flickering.

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keagan
Moderator
Moderator
Options
Galaxy Note

Hi Samsung_yonlWic,

Normally, You wouldn't be able to revert back to a previous version of Android. However, you can try the suggestions provided by CHMultimedia.

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Vic20
Active Level 10
Galaxy Note
@CHmultimedia can probably correct me in this if I made an error, but flashing Samsung Official firmware will not void warranty.

Only way of voiding it usually involves rooting and installing custom ROMs. However, that's an impossibility as the Note 10+ has locked boot loader now.

The only other thing to be aware of is you may not receive current security updates if downgrading. Not entirely sure (as I've never done a downgrade). But something to consider as well?
CHMultimedia
Expert Level 5
Galaxy Note
9/10. You still get update prompts if you downgrade. All you got to do is to begin the download and then pause it.

Or disable the Updates service.
Guru-Sandhu
Active Level 1
Galaxy Note

Thanks Alot for the information 😇

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Galaxy Note

If I use Odin and official software somehow we can't downgrading the firmware because we have locked bootloader, even if we already unlock the bootloader in developer setting.

 

And yes, official ROM won't void warranty 

 

Tell me if I'm wrong.