If you are experiencing an issue with the power button on your LG K4, then this is the update for you. The VS42512A update improves the sensitivity of the power button on the device, thus making the recognition pretty good.
LG K4 is one of the poor device available at Verizon Wireless for cheap, but it isn’t too good to be recommended. We don’t think it will ever get the currently trending Nougat update, for which care of CM14 ROM is highest ever, too!
A similar update was recently released for the LG Optimus Zone 3 too, improving the power button press on the device.