Can I get some help turning off a bright blue screen and won't do nothing?

[AC Question]

help turn off came up with a bright blue screen and wont do nothing

i have the galaxy edge was using the phone it was making funny noise and being really slow so i turned the phone off now the phone has come up with a bright blue screen and saying dowloading dont not turn off target and wont let me do anything i dont even no if the phone is switched on

 

[anon(632115)]

Re: help turn off came up with a bright blue screen and wont do nothing

Press and hold vol down and power at the same time