DFU over the air help

[Webmobi]

We wanted to update the firmware over the air, We needed help for zip file creation(.dat file, .bin file and .json file). There are many links online, We needed an link which helps us create zip file.

[Hung Bui]

Isn't it in this link, the documentation tell that you should look at "Working with keys" to know how to create the .pem file ?