s3 firstboot will not work in debug

[mahooody]

my s3 has been bricked with solid red and green led I'm trying to do the firstboot command in the debug console but I get the following after I type y and enter
jffs2reset: This will erase all settings and remove any installed packages. Are you sure? [N/y]
y
jffs2reset: no rootfs_data was found

any help would be great thanks