In order to update the Sprint LG Optimus G to the latest Android 4.1.2 Jelly Bean ZVB, you have to first flash/return your device back to stock. The file attached below is the official stock ICS zv9 I got from official LG site, and this file is already converted from tot to bin
Official Sprint LG Optimus G ICS ZV9 Firmware / ROM Download:
For now in my option the easiest way to flash the Sprint LG Optimus G is using the LGNPST tool. You can download here:
I’ll post the instructions on how to flash/return/root/unlock Sprint LG Optimus G for the guys who are new to the device.
Sprint LG Optimus G Phone Photos - LG Cell Phone Pictures
LG showcased the Optimus L7 II, L5 II and L3 II at MWC 2013 latest month. The Optimus L7 II is the top of the L-Series II. It has a 4.3 inch IPS WVGA display, Quick Memo, VGA front-facing camera, 8MP rear camera with LED flash, 1GHz dual-core Qualcomm MSM8225 processor, 768MB of RAM, 4GB of internal memory, MicroSD card support and Android 4.1 Jelly Bean out of the box.
The handset measures 121.5 x 66.6 x 9.7 mm, and comes with a 2,460 mAh battery.
Official LG Optimus L7 II Firmware / Rom Download (145):
The Optimus L5 II was officially announced last week at MWC, alongside two other new L Series II handsets: Optimus L3 II and Optimus L7 II.
The LG Optimus L5 II runs Android 4.1.2 Jelly Bean, packs a 4 inch WVGA display, 3G, Wi-Fi, GPS, 1GHz single core processor, PowerVR SGX531 GPU, and MicroSD card support.
Official LG Optimus L5 II Firmware / Rom Download (163):