No Original boot with iPod Classic 3rd gen

[basuri]

Hi everyone in the community,

I would like to consult you about a problem with my iPod Classic 3rd gen.

I have just changed the battery and the logic board some days ago and I installed RockBox firmware after that. But now, I can not start the original firmware when turning on the Hold switch. THe Apple logo appears and after that seems frozen. If I reboot again,  there is no problem with the RockBox firmware.

Any idea about what is happening with the original iPod firmware?

I would be very grateful if you could help me to understand which is the problem.

Thanks
Basuri

[basuri]

Hi again,

when I try to restore the ipod with iTunes, everything seems good, but when I restart, the Ipod shows a blank screen after the Apple logo