首先Telnet连接光猫

Welcome Visiting Huawei Home Gateway
Copyright by Huawei Technologies Co., Ltd.

Login:root
Password:
User name or password is wrong, please try it again!
Login:root
Password:admin
WAP>su
ERROR::Command is not existed

WAP>ls
ERROR::Command is not existed

WAP>shell

BusyBox v1.18.4 (2013-07-27 17:47:39 CST) built-in shell (ash)
Enter 'help' for a list of built-in commands.

profile close core dump, flag=
WAP(Dopra Linux) # su
/bin/sh: su: not found

WAP(Dopra Linux) # ls
bin etc lib mnt sbin tmp
boot home libexec proc share usr
dev html linuxrc root sys var

WAP(Dopra Linux) # ?
/bin/sh: ?: not found
WAP(Dopra Linux) #
WAP(Dopra Linux) # help
Built-in commands:
——————
. : [ [[ alias bg break cd chdir continue echo eval exec exit
export false fg hash help jobs kill let local printf pwd read
readonly return set shift source test times trap true type ulimit
umask unalias unset wait

WAP(Dopra Linux) #
WAP(Dopra Linux) # restorehwmode.sh
success!
WAP(Dopra Linux) #