Android phones, apps and tablets

My Moto G went belly up today - It started feeling very warm, turning itself off a lot, and is now off totally, and will not charge up at all.

Is this terminal? What are my options?

(Other than a replacement - which may be problematic as it's unlocked & fucked about with).
Are you still having issues with switching it on? Try pressing the power and down volume buttons at the same time for 5-10 secs to reboot screen then select option to simple start up.