UFi Reading a User backup

[ctfmobile]

hi guys I search Hi and Low for 2 days but could not find a answer. I am sorry if I am spamming

can some one guide me how to expand a 103GB back up file. I use chip off data recovery method on Samsung A31 which was successful but I cannot open the backup file userdata.img.

thanks for your help

 

[ctfmobile]

hey guys can some please advice me whether I am fighting a losing battel here. I have mounted the image using ubuntu and now I can see the files names but unable to still access any data it shows a lock symbol and its not my admin password has any one had this problem. what was the solution. come on guys please help me out here . Thanks