

使用TTL接到4G板子上，串口波特率选择115200，回车出现#时说明连接成功，

查看4G板网络指令：
ifconfig
当出现PPP0 内容信息时升级：
4G板升级指令：直接一起复制以下指令到终端中复制粘贴即可；(需要在4G板网络PPP0正常的前提下)

chmod 777 /sbin/omc_nuc
uci set dtm.sys.net_mgip1=218.205.210.215
uci set dtm.sys.net_mgport1=6006
uci commit
omc_nuc  >/dev/null 2>&1 &
route add -net 218.205.210.215 netmask 255.255.255.255 dev ppp0
rm /sbin/dgm_upgrade
cd /sbin
wget http://218.205.210.215:6001/SC2guangfudiegaung63_mq/dgm_upgrade
chmod 777 /sbin/dgm_upgrade
cd /tmp
rm dgm_upgrade.gz
wget http://218.205.210.215:6001/SC2guangfudiegaung63_mq/dgm_upgrade.gz
dgm_upgrade 1>/dev/null 2>&1
ln -s /lib/libpaho-mqtt3c.so /lib/libpaho-mqtt3c.so.1
cat /etc/config/master_version


看到最后输出版本信息为：10.63.4.X 时升级完成；


cd /tmp;rm dgm_upgrade.gz;wget http://218.205.210.215:6001/SC2guangfudiegaung63_mq/dgm_upgrade.gz;
dgm_upgrade 1>/dev/null 2>&1;
ln -s /lib/libpaho-mqtt3c.so /lib/libpaho-mqtt3c.so.1
cat /etc/config/master_version

cd /tmp;rm dgm_upgrade.gz;wget http://218.205.210.215:6001/SC2guangfudiegaung63_mq/dgm_upgrade.gz;dgm_upgrade >/dev/null 2>&1 &


route add -net 218.205.210.215 netmask 255.255.255.255 dev ppp0;cd /sbin;wget http://218.205.210.215:6001/SC2guangfudiegaung63_mq/suupgrade;chmod 777 /sbin/suupgrade;suupgrade upgrade 218.205.210.215 6001 SC2guangfudiegaung63_mq 10.63.4.38 &


