S4 mini does not turn on, and does not work recovery mode. Works only download mode

Hello,

I have a problem with a s4 mini i9195.
The phone dones not start and don't start the recovery mode.
I try to flash a firmware with Odin, but don't worws, Odin it blocks on:"initialization..." or "SetupConnection...".
I think this is due to the fact that it is not active the USB Debugging on the phone.
It is possible? if yes, how i can fix the problem? can i activate the usb debugging in download mode?

Thanks in advance

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