Chosen Solution

I bought a screen replacement for htc one m8 and received it yesterday. I also bought a new rear housing. I disassembled the phone with no problem. After that I tried to reassemble the phone. When I did that the phone was perfectly fine the touch screen was fully functioning. However, the selfie camera was green and the front facing camera was black so i disassembled the phone reconnected the cameras. (Turns out that I didn’t take off the film that was covering the camera). After reassemble The screen turned on and then went completely dark. It’s on but, you can’t see anything with out bright light. Touch function also work. Disassembled again and reassemble thinking that maybe one of my cables was loose. The screen of the phone is still dark. How do I fix this problem?

Case is your LCD back light not working Fault can be occur from below items

  1. Back light faulty : change the new LCD and check
  2. Back light drivers not working Check the FPCs connect properly Re solder FPC connectors and check Do the below path modification and check http://www.u2ugsm.com/blog/wp-content/up… This path damaged due to short circuit back light reason to burn paths Bad fixing LCD FPCBad quality LCD