Dietpi don't boot after broken update

Hello, my wife close my ssh sesion when I upgrade kernel on my Rpi2. Now Dietpi don’t boot. I don’t have any signal when connected to TV with HDMI cable. Can I fix that when connect SD-CARD to laptop?

if you have a backup, you could try to copy folders back

Hi, I don’t have. I forget to backup that Rpi2. I will do it manually then like last time when my sd-card failed :confused:
I think there’s some fix I can make on sd-card to back that feral upgrade.