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

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(@nocturne)
Posts: 6
Active Member
Topic starter
 

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 3:01 am
(@tic-tac)
Posts: 24
Eminent Member
 

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

 
Posted : 11/11/2022 2:58 pm
nocturne reacted
(@arcaine2)
Posts: 237
Estimable Member
 

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 1:28 pm
nocturne reacted
(@nocturne)
Posts: 6
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Topic starter
 

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 2:44 pm
(@arcaine2)
Posts: 237
Estimable Member
 

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 9:43 pm
nocturne reacted
(@nocturne)
Posts: 6
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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 11:37 pm
(@nocturne)
Posts: 6
Active Member
Topic starter
 

upd. after brute force by UFED we gained bootloop on phone...

Any ideas?

 
Posted : 15/11/2022 10:24 pm
(@arcaine2)
Posts: 237
Estimable Member
 

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 10:27 pm
(@nocturne)
Posts: 6
Active Member
Topic starter
 

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 1 year ago 4 times by nocturne
 
Posted : 21/11/2022 7:37 pm
(@arcaine2)
Posts: 237
Estimable Member
 

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 9:46 pm
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