While mindlessly wandering through the Hidden Menu ( ##LGSERVICEMENU in dialer ) on my Marquee I came across a section called AP CP USB Switching. What it does is allow you to change your usb type.. From what I've gathered elsewhere " AP = Application Processor - What is running your phone OS + UI CP = Cellular Processor (aka Baseband Processor, BP) - The actual radio/modem processor which does all the network stuff. (ARM based)" I don't know if anyone else had a problem with this.. but my phone got very hot when charging, especially when covered or tethering. Also, when plugged into computer and tethering, it would lose batter, quite quickly. Now, after changing to AP USB it stays a lot cooler and charges faster! Hopefully others can find this useful, provide information explaining it or maybe know of a better application/uses!