It is actually stressing when you aren’t able to turn on your LG G3, it is because your broken/faulty power button. When you have a faulty power button, you are not able to lock your phone and also can’t able to take screenshots.
We do provide power button replacement service for an LG G3 and which don’t take more than 40 minutes while you wait.

You should use this service when :
a. The Power button is loose.
b. The Power button does not work even after hard pressing.
c. The Power button does not work all the time.

We use high quality spare parts for LG G3 power button replacement. LG G3 power button replacement service comes with 30 days warranty subject to no physical or liquid damage.
For Walk-in Service : Click on “Book Now” button and get your convenient repair slot.
For Postal Service : Click on “Buy Now” button and proceed for the payment.