Update LG Optimus L7 P700 to Android 4.1.2 CM10 Nightly Jelly Bean Custom ROM

LG Optimus L7 P700 can be updated with Android 4.1.2 CM10 custom ROM, that brings the latest Jelly Bean update to your LG phone. This is not an official update from LG and they don’t seem to have any plans to update this phone with Android 4.1.2. There might be some bugs in this ROM, but still recommend you to give it a try and experience what Android 4.1.2 Jelly Bean has in store for you. You can install Android 4.1.2 CM10 Nightly Jelly Bean on Optimus L7
Download LG Optimus L7 USB drivers!

1. Having problems connecting your Android phone to the computer? You need to enable USB debugging mode. See here: How to Enable USB Debugging — for Gingerbread, Ice Cream Sandwich and Jelly Bean.

2. Make sure your Android device is charged up to 80-85% battery level. This might help you: How to Check Battery Percentage. Why? Because, if your phone goes off suddenly while installing a custom ROM, flashing an official firmware update or installing mods etc. — your phone might get bricked or go dead permanently. No one wants that, right?

4. Most of the tutorials and how-to guides on Team Android are for factory unlocked Android phones and tablets. We recommend NOT to try our guides if your phone is locked to a carrier, unless we have specified the carrier name or device model.

Source: teamandroid.