I reply myself with my last updates on this:

It doesn't work on my phone. I know that in my previous post I said it did, but now it doesn't, and i did not changed a thing. I set up my tv screen to make different test at different resolutions, and when I started to record, the screen went black only when recording.

But not went black as being off, but as nothing comes from the sensor.

I rebooted my phone, and the same. So, if after a complete reflashing it doesn't work, I'll start to asume that it's my phone fault.

Now it's time to focus in other things.

Anyway, my compliments to all people that achieved this and freemangordon for the work on it.