Meizu really dead! Please help me!

I think that my Meizu is really dead!

I upgrading firmware but now meizu don't power on.

When I push the power on button the screen light for 1 millisecond.

The battery is charge.
PC don't find meizu when it's connect to usb

I've tried enter button for 2 minutes
enter + menu + power on for 2 minutes
>>| + power on for 1 minutes

Nothing to do. The Meizu don't power on!

Can you help me?

Thanks friends!

PS: Sorry for my english

Ops!

It'all ok now thanks to DFU tools!

I've made the correct procedure that I found in FAQ