Why doesn't my screen display on my 520?

[Windows Central Question]

screen doesn't display on 520

I recently changed my lumia 520 screen but the screen is black when I Power the phone.....I don't know if it is the screen or I didn't fix it well

 

[worldspy99]

Re: screen doesn't display on 520

Probably damaged the LCD when replacing the digitizer unless you replaced the complete LCD assembly.