Screen keeps shutting off every time I try to turn it on....Solution found...

[delta lima]

I am having the same problem with mine after replacing the screen, did you ever get it figured out?

My LG G3 had the permanent blackout screen during phone calls and repeated cyclical black screen when turning phone on. I tried resetting to factory with no luck. So finally I cleaned out the proximity sensor and that was the solution! Now the phone is working normally again. I suspect that dust build up over 2 years messed up the proximity sensor. The fix is easy;
- remove back cover
- remove the 9 small screws securing the top 2/3 of the black plastic protective cover
- gently pull off the black protective cover
- gently pull back the proximity sensor at the top with tweezers or micro screwdriver( be careful to not damage the attached ribbon cable) the small sensor is square and will easily pull out of the housing space
- use compressed air to clean out the sensor housing ( I also took a damp Qtip to also clean out the space )
- reinsert the proximity sensor and reassemble the phone.
It only took me a few minutes to do it and I almost bought a new phone because I couldn't find this solution anywhere on the web. Good luck

 

[Galaxy Fan]

Thanks mate you saved my day, I was going to see the Optus people about the problem, you are a legend and yes I feel bloody stupid now!

 

[Galaxy Fan]

Thanks Chadbaldwin you saved my day, I was going to see the Optus people about the problem, you are a legend and yes I feel bloody stupid now