In order to connect your LG Optimus L7 P705 to your PC with USB cable, you must download and install the latest USB driver for LG Optimus L7 P705 to your Computer.
If you got usb connection problems with your device, Try to download and install the usb driver from below link from LG official and Connect your phone to your PC using the USB cable included with your device again.
Download LG Optimus L7 P705 USB Drivers
LG United Mobile Driver revision 3.8.1
For Windows XP, Vista and Windows 7 OS
LGUnitedMobileDriver_S4981MAN37AP22_ML_WHQL_Ver_3.8.1.zip
Description:
This package includes the latest LG United Mobile Driver revision 3.8.1for Windows XP, Vista and Windows 7 OS. Once the download is complete, double-click the installation file and follow the instructions provided in order to update your drivers. It will allow you to connect your LG Optimus L7 P705 to PC. You can also download the USB Drivers Version 3.7.2 or the Version 3.6 from below links:
LG United Mobile Driver revision 3.7
For Windows XP, Vista and Windows 7 OS
LGUnitedMobileDriver_S4981MAN37AP22_ML_WHQL_Ver_3.7.2.exeLG United Mobile Driver revision 3.6
For Windows XP, Vista and Windows 7 OS
LGUnitedMobileDriver_S4981MAN38AP22_ML_WHQL_Ver_3.6.exe
LG Optimus L7 P705 Official Support website
If you encounter some usb connection problems with your LG Optimus L7 P705 device, please leave with us your comments.