Xb3 Fw-300D, in your OTA procedure non save the public key, why !?

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Firmware Xb3 Digimesh 300D, in your OTA procedure the button to save the public key does not appear, why !?

You can only set a Key. You can’t read it back.

https://drive.google.com/file/d/1xn06_1HTviwIv_LY2ObvmGkSWz3QDQui/view?usp=sharing
I don’t understand, if I can’t physically save the keys, how can I then use them in the Ota procedure !?

Ok, I solved it with openssl, the above problem remains for the XCTU.
Sincerely, Emilio

You can also use the File system manager and Key function in XCTU to generate the key with.

https://drive.google.com/file/d/1xn06_1HTviwIv_LY2ObvmGkSWz3QDQui/view?usp=sharing
… as you can see in this gif linked, my XCTU doesn’t give me the button to save the public key, so I can’t use this feature.