Galaxy s6 Glowing blue light that kind of flashes

[Android Central Question]

need some help, i tried to replace the battery and charger port, turned out to be a bad idea... I thought i did it right. after i finished what i thought was a successful upgrade i went to turn on my s6 and the led is on blue and kind of fades into a teal color.
thanks in advance!

 

[themadscientist]

Sounds like its turning on but the screen isn't powering up.
Maybe you knicked the cable for lcd