[L630] Won't turn on?

[Windows Central Question]

the screen stays black and only vibrates any suggestions

 

[palmujukka]

Have you tried a soft reset (power + vol down)?

 

[estabien]

Also, have you tried pulling out the battery, waiting 5-10 seconds, then putting it back in?
When I had problems with past phones (not Lumias), that almost always helped.