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How to bypass pattern lock on Android 11 (Samsung A50) without losing data?

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nocturne
(@nocturne)
Posts: 5
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Hello!
Relatives sent me a smartphone (Samsung A50, A505FM, Android 11) of a deceased person. It is important for them to extract photos (and other data) from the smartphone.
The smartphone has a pattern-lock (graphic dot key) and nothing more.

What technologies could help here? UFED?

Thank you very much.

 
Posted : 11/11/2022 2:01 am
Tic-Tac
(@tic-tac)
Posts: 13
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You could use the Google account associated with this device to reset the pattern.  

 
Posted : 11/11/2022 1:58 pm
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arcaine2
(@arcaine2)
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A50 uses file based encryption so you can't bypass the passcode. It has to be bruteforced. UFED and Xry supports it, assuming firmware is from before 03.2022.

 

Posted by: @tic-tac

You could use the Google account associated with this device to reset the pattern.  

This option is long gone. You can lock unlocked phone without passcode remotely, but you can't change the passcode anymore. It should still be possible through Samsung account.

 
Posted : 12/11/2022 12:28 pm
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nocturne
(@nocturne)
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Posted by: @tic-tac

You could use the Google account associated with this device to reset the pattern.  

This doesn't work for me 🙁

Posted by: @arcaine2

A50 uses file based encryption so you can't bypass the passcode. It has to be bruteforced. UFED and Xry supports it, assuming firmware is from before 03.2022.

Thanks!
How to find out the firmware date? A505FMPUS9CUK2 - is this?

And are there other ways to bypass the passcode?

 

upd.

UFED 7.49.x can't connect to the phone (without display error) 😥 this happens only with this phone (not others with the similar system)

 
Posted : 12/11/2022 1:44 pm
arcaine2
(@arcaine2)
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That's firmware from 11.2021 so not patched yet. Try using a more recent UFED version. 7.49 is quite old at this point.

 
Posted : 13/11/2022 8:43 pm
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nocturne
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@arcaine2 the password was bypassed, but the phone hangs and does not start after entering this password... what might have happened?

 
Posted : 14/11/2022 10:37 pm
nocturne
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upd. after brute force by UFED we gained bootloop on phone...

Any ideas?

 
Posted : 15/11/2022 9:24 pm
arcaine2
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What do you mean by bypassed? It's not possible to bypass passcode on FBE based phones. Did UFED found the correct passcode?

 
Posted : 19/11/2022 9:27 pm
nocturne
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Posted by: @arcaine2

What do you mean by bypassed? It's not possible to bypass passcode on FBE based phones. Did UFED found the correct passcode?

Hello!

Yes, we found the corect passcode, but after entering it, we have android crash and boot loop.

Boot loop ending this:

 https://i.ibb.co/2cKv4yS/Si-BR4-Am-V1rw.jpg 

More reocvery logs are here:

 https://cloud.mail.ru/public/RST8/SPGeyWEsg 
This post was modified 2 weeks ago 4 times by nocturne
 
Posted : 21/11/2022 6:37 pm
arcaine2
(@arcaine2)
Posts: 218
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This doesn't look great, but try to flash the same (or slightly later) version using ODIN, and select HOME_CSC file as the CSC part.

 
Posted : 06/12/2022 8:46 pm
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