HELP -

[TiagoBellettini]

Hi all,

I'm having problems with my HP Prime calculator. During use the calculator has stopped and has not answered any more. I reset it using the reset button in the back of the calculator and then the calculator did not start again.
I read a few posts about firmware update and them I downloaded the latest firmware's version.
In the restore mode, pressing by the Symb button and the reset button, with the cable connected to the computer I downloaded the latest firmware version, but even after this the calculator does not turn on, the screen turns dark.

Could anybody help me?