Good news!!!!
It's working again and ready to go!
This is what I did. Yesterday while it didn't work the iPhone was connected to the charger (it was charging for about 2 hours). Tried connecting to the computer, but also nothing. I also tried all the kinds of rebooting iPhone... So I just gave up and went to sleep leaving the iPhone charging (remember that nothing worked... No lights, no sounds, no screen image of low battery. The imagem of the battery with the red colour not even appeared... completly dead).
This morning when I woke up, touched the home button and simply worked!
I don't know if this has happened to anyone but I beliave it did...
The other kinds of block and frozen already happened to me. But this one never!!!!
Well you guys. If this happens to you try leaving the iPhone charging as long as you can...
And it wasn't a lack of battery because when it went dead it had more than 50% of battery!
Thanks you all for the help 😉
Keep cool!