error mounting emmc after PC crash while formatting internal storage! topic

hii recently installed Mv5 on to my mb860 device.
while formatting the internal memory storage unfortunately my PC restarted due power issues
after that i cant able to acces internal storage.
tried mounting n formatting in recovery.
changed/swapped internal/external storage in vold.fstab
spent 2days searching for solution but failed in fixing this problem:crying:
pls need help on this
thank you