8. Do not cut off the power during the upgrade process, otherwise it will cause the router to be damaged and can not be used! After the software upgrade is completed, it is recommended to restore the factory settings and re-set the Internet!

9. Upgrade method: 

Method ① use tendawifi.com login to the router management interface, open the system management - software upgrades - click on the online upgrade, will be detected, if there is a new version, click to upgrade; (The router needs to be connected to the Internet).

Method ② Use tendawifi.com to log in to the router management interface, open the system management - software upgrade - click on the local upgrade, browse to download the ".bin" file, click OK to upgrade.