LG Cosmos Touch a.k.a. LGVN250 / LGVN270? All you need is to visit here (). This link contains complete guide to download driver, update software and manuals documents (.pdf) for LG Cosmos (LGVN250).
To download LG App Setup.exe
To download LG Mobile Updater.exe,
All links include Download Phone software update, Support tool and USB Driver, so you can start updating Your LG Cosmos (LG VN250).
For detail guide : Go to link ()
Always important:It is VERY recommended that you backup all important data such as phonebook, pictures, videos and sound files on the phone to prevent unexpected data loss