samsung galaxy s2 lte hd device shuts-off right after turning it on

[ashraf88]

Hi there,
I'm using Samsung Galaxy 2 HD LTE brought from Korea. My problem is that when I turn it on, the device shuts-off directly, until now I couldn't turn my mobile on please help...
Thank you in advance.

 

[B. Diddy]

Welcome to Android Central! Have you tried a new battery?

That's a 4 year old phone, so if a new battery doesn't help, I'd guess the motherboard or other hardware is just failing.