I'm developing the firmware update feature for HomeKit accessory, I would like to know how to test HomeKit accessory firmware update in Home App before the accessory certification?

I have some questions about the ADK6.3 Diagnostic function: If HAP_DIAGNOSTICS_MANUFACTURER is not enabled when compiling ADK, after adding the device through Home, the collecting log function cannot be found in the device settings. What is the reason? How to solve it? If HAP_DIAGNOSTICS_MANUFACTURER is enabled during compilation, the vendor URL needs to be added when transmitting the diagnostic log. How is this vendor URL defined? How to add it to diagnosticsURLParameters? How can I use the Home App in iOS device to test diagnostic functions before obtaining certification for HomeKit accessories?