samsung galaxy4 i9500 turn on and off

my phone dont stop turn on for 3 sec and off for 5 sec.
i try take off the battery and return -don’t work
try all the option with Volume Button \ Power Button \ Home Button – don’t work.
I searched in the Internet and not found someone with a similar problem.
Someone knows the problem and knows how to solve?

I upload video to youtube:
I can’t post it 🙁

please serch on you tube : "moshiko Davidian" to see the video i upload