New Update UI 6.1 touch screen unresponsive on S21

[MPopescu]

After installing the latest update on both phones (S21 5G and S21 5G Ultra 512 GB 16 RAM) the touchscreen became unresponsive. I noticed that the date automatically was changed on both phones to 3rd May 16.00.

The only thing that is working are sides buttons. 

I managed to start the recovery console using:

 1. Side button + Volume down to restart the phone

2. Then very quick I change to Side button + Volume up

I wiped the cache partition and also performed a factory reset on S21 5G but unfortunately did not solve the issues. The only change is that the phone is starting the setup (with a padlock locked on top left corner) a new phone but I cannot interact to set it up.

I assume that the main and major issues are with UI.6.1

Is there anything I can do for downgrading the android/UI and recover the information I have on S21 Ultra?

I hope that there is a quick solution as it is so frustrating for having two top phones and to not be able to use any of them. At the moment I'm lucky to have an A70 with older android and UI but I'm thinking of leaving Samsung after many years and products and not buy any other.

Thank you.

[Guillaume B]

Latest update didn't fix my S21, looks like Samsung couldn't care less.

[Franklinrm]

Aquí una muestra de que el kernel de la nueva actualización es una total pendejez seria un éxito si se pudiera actualizar el tsp local en vez de actualizar atravez del kernel 

 foto de un galaxy watch 

[Guillaume B]

I would root my S21 if it didn't affect the banking service.
For me it's not acceptable to loose this feature, so I'm stuck with waiting for a Samsung update that would fix it 😕 

[Dmalick]

my version software begins with G991. i don't know if it's a version A or B

[Dean9877]

Easy, if u can reinstall your phone using  files on Feb 2024. 

Meaning your phone can rollback. If not, u need buy new screen or root your phone

[Dean9877]

Even go news on this

https://www.forbes.com/sites/jaymcgregor/2024/07/22/samsung-galaxy-s21-ultra-upgrade-trade-in-galaxy...

[Other Galax S series]

It's happening to me too some months ago, just updating my s21 ultra on 6.1UI...

I have trying anything, even chat with the samsung technician. all was waste of time.

My s21 ultra now is rest in peace, back into his original box. RIP S21 ultra...your murder android 6.1UI  will never get famous...lolllll, I went buy a china phone blackview n600 until Samsung decided one day to give me back my money! 

[Wayne9360]

I fixed mine by going to Sammobile.com and reinstall the stock firmware.  Then update UI to 6.0

[Wayne9360]

Go to Sam mobile and download 6.0. You will need a computer to download then install. I successfully did it and my phone works now.

[MTas]

You cannot 'reinstall stock firmware'.

As others have pointed out already, you can only rollback updates that are the same swrev number. I.e: It's C now and you can't go back to B or A. Find the 5th letter from the right in serial number (about phone/software info/baseball ver) to find current update number. I.e: G998UIUEUCGXGB, update ver is C.

Please stop giving bad info. It's been months since this update and no one can rollback now.