just flash newifi d2 with snaphost version.
root@OpenWrt:~# df -h
Filesystem Size Used Available Use% Mounted on
/dev/root 3.5M 3.5M 0 100% /rom
tmpfs 248.7M 256.0K 248.4M 0% /tmp
/dev/mtdblock6 25.6M 2.0M 23.6M 8% /overlay
overlayfs:/overlay 25.6M 2.0M 23.6M 8% /
tmpfs 512.0K 0 512.0K 0% /dev
root@OpenWrt:~#
help me