MacBook pro keeps shutting down
I have a MacBook Pro retina 13” early 2015, I have a problem with it:
when i want to turn it on it keeps shutdown but whenever i keep holding any button on the keyboard it stays alive.. and whenever i release it shutdown after few seconds.. Sometimes it shows me a alert if im sure to shutdown now.. and sometimes it doesn’t show me and the screen goes black and the mac shutdown...
I’ve tried to reset smc and to reset the PRAM... but it didn’t work.. :/
i thought i could fix the problem if i erase everything in it and install the OS again but it didn’t work also.. so i tried to use my backup drive and use my very old backup.. from 2016.... but i still have this problem...
my warranty is expired few months ago.. 😟
MacBook Pro with Retina display, iOS 10.3.3