Hello, im a user of a galaxy tab 2 10.1 gsm.
i had custom roms installed on my device and i had cwm..
i tried to upgrade cwm to touch version and my tablet didnt start more and it says in the recovery screen failed to mount /efs..
i looked all over the forums and a i found a tutorial for restore my tablet to its original firmware via odin.
i followed all the steps given and odin did its work good...
the i restarted my tab and its just stay in the samsung logo, so i get into recovery mode (not cwm or twrp) and it says...
"E:failed to mount /efs (invalid argument)
E:failed to mount /efs (invalid argument)
applied the csc-code: unknown
successfully applied multi-csc."
i'm very sad because this is my first tablet and i used for doing almost everything (almost) and i really want it back..
i've never done a backup of efs folder so i dont know what to do now. Some friends said to me that i must get the tab into a technical service so they can fix it with a sptbox...pls help buddies, thanks !!