Runpod not connecting red/yellow light

i dind’t use my runpod for a while, but i tried it today with a new battery, but i doesnt work anymore.
he cant connect to my pc, and the only thing i see on my runpod is only once a red/yellow light.
does anyone now how to fix this problem?

I rather suspect it’s died. Long long history of failures for these I’m afraid. They just fall off the edge of a cliff one day.

They’re currently half price though.