Thanks for reaching out and letting us know about your device issues.
If you're having trouble getting the device to move past the LG boot screen we may have to look at a factory reset to restore the phone back to its original settings. (Be aware! This will wipe all user data on the phone!)
You'll want to power off the device before we begin (If it's frozen and you're unable to turn it off go ahead and pull the battery from the back of the phone).
Once the screen goes black (you'll put that battery back in) hold Vol Down + Power to boot the device into Recovery Mode. Keep holding! Here you'll see the LG Logo show up followed by "Factory Reset Processing".
At this point you can release the hold on the buttons and you'll see a "Team Win" boot screen.
Select "Wipe" and swipe to Factory Reset.
Once the data has been wiped: Select Reboot > System.
The device will power up and should take you back to your home screen.
Please let me know if you're still having issues and we can keep working through it.