Ipod classic 6th generation Bricked

[eliaslc]

Hi everyone.
I tried to intall rockbox on my 6 gen Ipod using the rockbox utility from this page: https://files.freemyipod.org/~user890104/bootloader-ipodclassic.html
When I get to the step of rebooting the ipod, it just turned off and now It doesn't turn on. I´ve tried to turn it on pressing  select + menu but nothing happens. I think is bricked. How can I fix it?.
Greetings from Mexico.