Question: how to download kdz lg firmware?
Answer:  Verify Device. Steps 1. Check your device box for the proper Suffix 2. Go to - LG Download (just type in Search - your suffix - e.g. "SWS") ... 
 Enable Developer Options. Steps 1. Settings -> About Phone -> Software info 2. ... 
 Download Software. Steps 1. Download - LG Drivers 2. ... 
 Install KDZ - Part 1.