Toshiba Satellite a-505 shuts off 20 seconds after pushing start button

[chikung]

laptop shuts off 20 seconds after turn on, before boot , even if you go directly to set-up or bios only 4months old

 

[Ididmyc600]

Hi

oveheating, hardware fault, PSU failing, either way it will need proper diagnosis with a trained technician,

if its only 4 months old it will be under warranty so give the seller a call.