Pole route 1 hc5661 cpu is MTK7620 mips 24kec
1. Brush undead breed
2. Download the latest flashing package from the openwrt website
https://archive.openwrt.org/releases
such as https://archive.openwrt.org/releases/19.07.2/targets/ramips/mt7620/
3. Enter the breed upgrade interface, select the firmware and select the upgrade package to upgrade
4. Execute opkg source update on the interface or background
1) opkg update or click update lists under software on this page;
2) search for zerotier installation;
execute /etc/init.d/zerotier start to start;
5. Check the assigned ip on the zerotier website;
6. Switch the mobile phone to 4g network to access the ip of step 5 to log in to the openwrt management interface;
7. Install the Chinese library
. Search for luci-i18n-base-zh-cn to install under the software interface;
or opkg install luci-i18n-base-zh-cn
Reference link:
https://engrzhou.github.io/2018/07/Openwrt%E8%B7%AF%E7%94%B1%E9%80%9A%E8%BF%87Zerotier%E7%BB%84%E7 %BD%91%E5%AE%9E%E7%8E%B0%E5%BC%82%E5%9C%B0%E5%86%85%E7%BD%91%E4%BA%92%E8%AE %BF/
https://archive.openwrt.org/releases/19.07.2/targets/ramips/mt7620/