Delete BA Storage

[swzonecom]

how to delete these data in the rom.
After i tried to reflash the latest rom, but these data in the storage still be there.
How do i should do?

[LGSilva]

after flashing the new rom do a hardreset (wiki shows how)

[krishan2207]

hold power+camera+Record and reset the ba by stylus.in the menu choose no yes yes. (for changing values use camera and record button)