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Old 09-22-2021, 12:24   #1 (permalink)
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Question USERDATA F2FS partition using EasyJtag+


Greeting Everyone.


introduction:

So, am working on recoverying my Old data from Huawei y7P Phone, the phone dropped from high stairs while i was in work,(Telecommunication structure), i did reball both CPU and EMMC, the PCB is bent under CPU so i was not able to give him life again.


Problem :

In easyjtag, i did a full backup for everything, i notice that in easy+ the /USERDATA partition shows as raw. i thought i was MBR/GPT problem.
after some digging and using binwalk with EMMC Manager , i found the partition to be F2FS filesystem, Not EXt4 or FAT32 . and thats why i was not able to read it using Easy+ software.

after that i did run my ubuntu and successfully mount the partition, the next problem i face is the list of all folders are availble but what inside
Code:
/mnt/media/0
is not availbe due to permissions,
i did use
Code:
"sudo chown"
and
Code:
"sudo chmod"
but with no success,

any idea how to resolve ?


NOTE:
Since am not able to update with tree result. i have attached the tree output as attachment.
Attached Files
File Type: txt test.txt (30.5 KB, 5 views)
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Old 09-22-2021, 13:57   #2 (permalink)
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Nand file system if its F2FS, Encrypted and useless to digging



BR.
SeharH
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Old 09-23-2021, 10:23   #3 (permalink)
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Quote:
Originally Posted by SeharH View Post
Nand file system if its F2FS, Encrypted and useless to digging



BR.
SeharH
its EMMC , by looking at "tree" ouptut, i guess i have the Encryption key stored in "/mnt/sdcard/unencrypted/backup/data/misc/void/user_keys/ce/0/current/"


it got the salt and the key i guess, only missing the tools,


any help ?
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Old 09-23-2021, 10:29   #4 (permalink)
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key decryption hmm.... Seems need another development.....


BR.
SeharH
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Old 09-24-2021, 07:20   #5 (permalink)
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Quote:
Originally Posted by AliShipley View Post
its EMMC , by looking at "tree" ouptut, i guess i have the Encryption key stored in "/mnt/sdcard/unencrypted/backup/data/misc/void/user_keys/ce/0/current/"


it got the salt and the key i guess, only missing the tools,


any help ?

You need ufed pa which is $300
Let me know if want the tool
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Old 09-27-2021, 21:42   #6 (permalink)
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F2FS file system is supported for mount and extraction with various methods;

First method: Using Linux and following this guide:
Complexity level: Difficult

Second method: Using Windows Tool (Mobile Revelator) which can be obtained from here:



Note that not all F2FS images are supported. Try and feedback.

br, mshibo

Last edited by MiRoOo; 09-27-2021 at 21:51.
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Old 10-09-2021, 18:11   #7 (permalink)
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Quote:
Originally Posted by oktay50000 View Post
You need ufed pa which is $300
Let me know if want the tool
thats decrypting only 20% of new handsets
old are not in the market anymore
samsung the most
mi oppo vivo and other ....least

br,
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