My laptop powers of after startup like someone pulled the plug, but it happens the same when i am running on battery only. Sometimes i can get in to windows or ubuntu and use it for a while but most of the time it shuts down within 10 seconds after turning it on.
It is no overheating issue and it is not shutting down when i am in BIOS
also when it is working it is showing that gpu temp is 4°C
My laptop is Toshiba Satellite L850-11D