1, build a TFTP server;
2, download the latest firmware file from SUNDE’s official website: www.sundenc.com and unzip the download package to get the .bin and .enc file;
3, create a fold named “netpointupdate” in the TFTP server and put the bin and the enc files into the folder;
4, create a txt file in the folder and name it “updateinfo”; input the following example information and save:
1) Replace the “H4hyKN30813011.bin” and the “H4hyFS31220UIP.enc” with the real names of the latest files you have just downloaded.
2) The numbers in the second and fourth line are the sizes (KB) of the bin and the enc files. You have to write in the real size of the files you have downloaded.
5, now you can enable the TFTP mode for updating firmware at the device setup menu.