[Q] E: Failed to mount / efs(invalid argument) topic

Hello All,

I have a Samsung Galaxy I9070.

I have rooted the device from http://forum.xda-developers.com/show....php?t=2087424 and it worked fine.

After that i tried to Flash a CWM 5 XX version,
1. I wiped all the data/reset
2. While flashing it from "Apply update from external storage" the device got powered off.
3, I did a hard restart to enter recovery mode and then CWM showed up and stared to blink.
4. Now i got a error as E: Failed to mount / efs(invalid argument).
5. i have restarted the device.
6. i am getting a error as Unfortunately,the processcom.google.process.gapps has stopped.

Now i thought to flash a new rom from SD card and then it may work.
1. i flashed cynogen Mod 11.0
2. after that it is just stuck at the starting screen of Cynogen Mod logo.

Now i have restored the Jellybean from Odin and still i get the same error as Unfortunately,the processcom.google.process.gapps has stopped.

and also in the recovery mode E: Failed to mount / efs(invalid argument). this error stayed.

Please help me to get the device back to working.

Thanks All.