D80120E KDZ File
http://oceanhost.eu/g92b383v7jqe/D80120E_00.kdz.htm mirror - thanks hyelton!
D80120A KDZ File
http://storagecow.eu/index.php?dir=X...T-Mobile+G2%2F mirror - thanks hyelton!
LG Mobile Support Tool...Thanks CollinFX45 for the link!
Latest drivers from LG (as of 7/2/14)
You can also download 4.4.2 through the PC Suite. Thanks elzero26 for pointing this out!
If you are having issues with updating your phone with the Support Tool or the PC Suite, you may have to update it following the directions from the link below.
Alternate method for updating software
As always, flash at your own risk.