Here is download link LG Optimus L3 E400 PC suite/Sync/USB Driver for Windows 7,Vista and XP (32-64 Bit). This also provide USB Driver Optimus L3 E400 for Mac OS X. All Mac type also can installed this software like Mac OS X 10.3x,Mac OS X 10.4x, Mac OS X 10.5, Mac OS X 10.6 and 10.7. You can download and use this sync to Macintosh Apple MacBook,MacBook Pro,MacBook Air,iMac,Mac mini and Mac Pro. This LG Support Tool are can use to manage and synchronizing your data on LG Optimus L3 E400 from your PC Computer and Solving the connection problem . To use LG On-Screen Phone Service, you should connect your phone to PC via USB, Bluetooth™, or Wi-Fi.
To Get Software Update LG Optimus L3 E400 Support Tool PC Suite to Windows are follow as :
A. LG DRIVER FOR WINDOWS
Download , Install and Execute the LG MOBILE SUPPORT TOOL>> Connect your phone to PC by using the bundled USB Cable>> Click Start Updating within the LG Mobile Support Tool to begin.If your phone needs to upgrade, the Start Updating button will be enable. Many software type that you can use to connect with PC. Please choose that you want
B. LG DRIVER FOR MAC OS X
Click link below to download and how to install LG USB Driver for Mac :