Based on Android 4.0.4 ICS, this was a popular "upgrade" for the device.
Click on (retains data, ideal for minor fixes) or CSE Flash (wipes all data, recommended for clean installations and unbricking). A small window will appear; click Start . Select your preferred country and language, then click OK .
The LG Optimus L3 (E400) is a classic budget smartphone. It was released running Android 2.3 Gingerbread. Many users still look for its original stock firmware. Updating or reinstalling the stock ROM can fix many common device issues. This includes software bricking, boot loops, and severe system lag. 📌 Technical Specifications Overview
To create a backup in TWRP: