Nvidia shield guide's and command's ?

Hi I have read the root guide but is there a bootloader unlock guide with PC commands or a PC app like there is on the one plus one xda page ?
I know its can only be done once and will wipe the system wish there was a YouTube video as well.

Sound goes out on both my Nvidia Sheild Pros

Hello,

I was wondering if someone can help me out. On my Nvidia Sheild Pros if I let them sit and come back after about 10 min I no longer get any sound from my TV speakers. I have to power down the units in order for the sound to come back on. One unit is rooted on stock firmware 2.1 and the other unit is running Full Android OS Ver 2.1 .

Thank you.

Nvidia Shield Android TV ITALY

As first I start this because Netflix started today in Italy and I have tested some films yet!
Their algorithm takes some 30 seconds to find the correct ratio resolution/net speed in local lan. I connected a Bluetooth soundbar, Logitech K400 keyboard ATM. Waiting to iron out some more things and after there it goes in the living room!
Device bought one week ago on Amazon France as in Italy is not sold yet!
Ask what you want!
Regards
Alessandro