Slate dead, Creta dead, Beryl next?

My Slate has seen little use - mostly as emergency backup. I was going to press it into full service, updated the software and let it run overnight. All was well. Took it to location, and started the reboot/recycle" process. Useless. Caught me out on the job, and I was not happy. I thought maybe the plastic reset button got stuck, so I pried that out to reveal the bare microswitch. Still in the cycle. Cant get ethernet wire connection. DHCP won’t give address. Pressing the microswitch will cause it to reboot as expected, though it has one light, occasionally the three then restarts.

I love the written capabilities. Can this be brought back to life, or does it go to electronics recycling?

Update: Now back in business, thanks to @ws2228.