Samsung Galaxy Tab S4 in bootloop

General Ghest

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Hey there.
I have a tablet - Samsung Galaxy Tab S4. There was quite a lot of data on it, but it worked fine. Recently, it turned off without any reason and after that it could no longer turn on. Now the tablet has an eternal reboot and it does not boot into the system.
Error in recovery:
! ! Caution! !
Not enough storage resource.
Perform "lacking storage booting".

The recovery says that I can try to boot my tablet using lacking storage booting. But for some reason, I don’t see such an item in the recovery (please look at the photo: https://postimg.cc/XBFrycqF/c9784539). Maybe I should try to install different version of official Samsung firmware or different version of official Samsung recovery that will have function of lacking storage booting?
I understand that this issue is because my tablet hasn't enough memory and something needs to be removed from memory to allow the tablet to boot.
I know that there is variant to delete all data from the tablet - use factory reset through recovery, but I cannot do this because there is important data stored on the tablet.
Please help me what can I do in this situation and how can I enter to the file system for delete something from the tablet? Maybe can I delete some unnecessary files by connecting the tablet to a computer? When I tried to connect the tablet to the computer, nothing happened - the computer does not see the tablet.
I have tried to boot in safe mode but it not helped me
Also I had an idea - install custom recovery TWRP, but as I understand - Samsung Security Folder will be deleted after that due to Knox protection triggering. It also no good for me because I store my important data in Samsung Security Folder. I have tried severely times wipe cache partition, but it's not working for me.

By the way, I found information on the Internet about programs: system recovery program - ReiBoot-Android System Repair from Tenorshare and data recovery program - Tenorshare - UltData for Android.

Has anyone heard of these programs?
Maybe they will help in my case?

Help me please.
Thanks a lot.
 

General Ghest

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Also I have tried to delete something through ADB.

ADB sees my tablet only when I enable ADB SIDELOAD mode in recovery: when I select "Apply update from ADB" in recovery. So I selected it in recovery.

Is there any way to free up some space?
 

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General Ghest

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The tablet - Samsung Galaxy Tab S4 itself turned off and got into a bootloop - it doesn't boot into the system because there is not enough memory. Before that it worked fine.
All on the tablet is stock and official, there is no root.

Wipe cache partition tried many times already.

The problem is that there is not enough memory on the tablet - so I need to find a way to delete something, for example, the Tik Tok or [redacted by mod] application.
How to do it using computer and ADB? Here's what I tried: https://postimg.cc/QBb20twx .
ADB sees my tablet only when I enable ADB SIDELOAD mode in recovery: when I select "Apply update from ADB" in recovery. ( https://postimg.cc/PpfjjZYw )

Is there any way to free up some space?

It will be better to find a way without installing root or custom recovery - so that the Knox counter doesn't count.

Error in recovery ( https://postimg.cc/XBFrycqF/c9784539 ):
! ! Caution! !
Not enough storage resource.
Perform "lacking storage booting".

The recovery says that I can try to boot my tablet using a boot with insufficient storage - "lacking storage booting", but there is no such item in my recovery ( https://postimg.cc/XBFrycqF/c9784539 ).
Maybe I should try to install another version of official Samsung firmware or another version of official Samsung recovery that will have "lacking storage booting" feature?

I can't delete all data from the tablet - I'm looking for different way.

Is it possible through ADB to delete something from the tablet in my case?

Many thanks to everyone who will try to help me.
 
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Laura Knotek

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