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Original topic:

Android 12 upgrade on S20: pre-alpha quality, any help? Downgrade to 11?

(Topic created on: 08-01-2022 05:45 AM)
Sergey Udaltsov
Apprentice
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Galaxy S20 Series

I updated 2 days ago my S20 SM-G981B to Android 12, official, non-beta. The phone started misbehaving badly:

  1. Various apps crashing/freezing (including official Samsung Galaxy Store, Youtube Music etc).
  2. A couple of times I got into endless reboot loop, could fix only in recovery mode + cache clean. 
  3. At least twice after reboot I was getting the odd error message:

 SmartSelect_20220107-181957_One UI Home.jpg

Anything I could do to troubleshoot or get back to normally working Android 11?

Of course, I have the latest firmware and latest versions of all apps (only from Google App Store and Galaxy Store).

The worst firmware I ever had.

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9 REPLIES 9
Samzung_Customer
Explorer
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Galaxy S20 Series
A factory reset should be done, that may sort your issues out.

I think slowly, but surely other users are reporting issues now for the S20 series with this update

I'm having slight lag/choppiness performance behaviour.

Especially when like opening or closing apps and UI stutters.
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Sergey Udaltsov
Apprentice
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Galaxy S20 Series

I would not like to reconfigure dozens of apps.

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Samzung_Customer
Explorer
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Galaxy S20 Series
Maybe try to do a backup
LOOK18
Navigator
Options
Galaxy S20 Series
if you downgrade you have to reconfigure all the apps again..if you restore it is the same ... so the choice is yours
Sergey Udaltsov
Apprentice
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Galaxy S20 Series

really I want something less radical than reset or downgrade.. 

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LOOK18
Navigator
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Galaxy S20 Series
try this .. if the problem persists you have to bring it to assistance
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Sergey Udaltsov
Apprentice
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Galaxy S20 Series

what is 'this'?

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LOOK18
Navigator
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Galaxy S20 Series
reset or downgrade
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kkdowning
First Poster
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Galaxy S20 Series

I got almost the same problems on S20+, my battery went from 60 to 4% in less than 2 hours, everything is running slow, I hate the "extending" animation when you scroll to the end (I preferred the white line that shows up), mobile data is ultra slow...

Not sure what to tell you other than check your IMEI and search for a ROM that fits your IMEI and flash the phone through ODIN, I suggest this if your warranty is done.