This specific Firmware Download Package For LG Optimus L3 E400 comes with a Stock ROM of LG Optimus L3 E400. This helps you to bypass the FRP lock and revert from root and custom ROM.
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How To Flash LG Optimus L3 E400 Firmware File
If your LG Optimus L3 E400 device is corrupt or bricked. Download LG Optimus L3 E400 firmware from here. (based on your device model number) and flash it on your smartphone or tablet.
To get it back to working condition again. In this post, we share LG Optimus L3 E400 official Flash file we test this ROM on many phones,s works well.
You can use LG Flash Tool 2014 or LGUP Tool 2016 to unbrick the LG Optimus L3 E400. This tool is very efficient. Follow the step-by-step procedure to use the One Click Unbrick Tool and unbrick your LG Optimus L3 E400.
Please read and understand the Full Guide Before Flashing LG Optimus L3 E400 Stock ROM.
Use these instructions at your own risk. We will not be responsible for everything that happens to you or your device, resulting from the use of information in this guide.
Make sure that the USB drivers for your device are installed on the computer.
Your smartphone must have a 70–80% charge.
Make a backup copy of important data such as call logs, SMS, and other data; it is to if something goes wrong, your data is not affected.
Instructions to Install Firmware LG Optimus L3 E400:
1. Extract/Unzip the LG Optimus L3 E400 flash tool .zip file that you downloaded above on your PC. You’ll get a bunch of files required to run the program.
2. Run the LG Flash Tool 2014.exe file to Open LG Flash Tool. If it doesn’t open, install Visual C++ Runtime Library from here and then try again.
3. Boot your LG device into Download Mode:
How To Start LG Optimus L3 E400 download mode?
Power off your LG device
Press and hold the Volume Up button.
Connect your device to PC with a USB cable while holding the Volume Up button.
4. Now load the LG Optimus L3 E400 firmware.kdz file into the LG Flash Tool window on your PC.
6. Click the Browse button at the end of the “Select LG Optimus L3 E400 firmware.kdz file” line. Leave every other option as is on the LG Flash Tool window
7. Once you’ve selected LG Optimus L3 E400 firmware.kdz, click the “CSE Flash” button to proceed with flashing the.KDZ firmware to your LG device.
8. Normal Flash” button doesn’t wipe data, and the “CSE Flash” button wipes data. If you’re upgrading from stock firmware, then “Normal Flash” might do.
9. You’ll get a “Read Phone Information” window; it will be blank for the most part. Just hit the START button and proceed.
10. Now you’ll see the “Select Country & Language” window. Select “Different” from the country list and then “English” from the language list.
And remember NOT to tick the Smartphone upgrade checkbox, it’s for Windows Mobile phones, not your LG device running on Android
You’ll see a progress bar now. Just wait until it’s 100%, after which you might get an error “Connection to server failed.” This is okay. Don’t disconnect your phone at this point
firmware update progress on your phone. Once it’s complete, your phone will automatically reboot.
After the flashing process starts and might take up to 5-10 minutes, so keep patience and wait.
Instructions To Flash LG Optimus L3 E400 With LGUP Firmware Tool: