Phones turn on by themselves

[22left]

I use both the LG3 & LG5 phones. I chose them because they allow for battery replacement as well as accept SD micro SD memory cards. One big problem I have with both models is they turn on by themselves, 24/7. The power button on the rear I do not handle, but they turn on anyway. Any advice?

 

[Rukbat]

Have them diagnosed by a repair shop. It sounds as if both power switches may be defective.