The second generation HTC One—dubbed the HTC One (M8)—features a dual flash and the new Sense 6 UI, and was released March 25, 2014.

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Extremely Dark Screen on HTC One m8

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?

Answer this question I have this problem too

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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 FPC
  • Bad quality LCD

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Reconnected it to my old screen and it was still dark. Therefore, I don't think it is option 1. I might still need to buy new lcd just in case. I don't really feel that comfortable doing option 2. Thanks for the suggestion though.

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Also I held it under a bright light for a little bit and the screen started to work again but, once it went into sleep mode it stopped.

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Quenton McDaniel,

Check below steps to boot in safe mode, according to your sounds i guess light sensor also part of fault

how to boot on Safe Mode:

* Hold the Power button until you can access the options

* Hold Power off until Reboot to safe mode appears

* Tap Restart to select

* You should see “Safe mode” at the bottom left of the screen

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Quenton McDaniel will be eternally grateful.
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