In this use case , you should have pre-generated and burned an AES key that you know (noted down). If you know the key, you encrypt your firmware (user application) and write it to the external flash. If you don't know the key and have enabled the Release mode, this means that the key is randomly ge...

Thank you for the reply. It is exactly what I needed.

Hello, We are designing a SW that has a configuration with one Factory and two OTA sections. The Factory Application we want to use as a typical Flashbootloader. Therefore we are wondering if there is an Espressif mechanism to load&boot the main application from the Factory application. So far we ha...