Verizon and LG Have just released a security update for the Verizon LG Optimus Zone 3 (AKA Verizon LG K4). Now, the Stock kdz firmware is available for download from LG server, You can grab it from below links:
Download Verizon LG K4 VS425 Stock kdz firmware:
To unbrick/Restore your LG VS425 back to stock, You need to install:
After install the LG USB drivers, LG UP Store and LG UP DLL for VS425PP
Please connect your Phone to PC Via USB Cable and Run the LG UP Software
Wait until LG UP detect your Phone.
If LG UP can’t find your device, you need to put your phone into download mode manually by
Turn off your phone, press and hold “Volume Up” button and plug in the USB cable from your computer to the phone.>
Now Run the LG UP, waiting for LG UP install necessary USB drivers for your Phone.
When LG UP screen shows up.
From LG UP Screen, click on the Upgrade option
Click Bin File and Select the VS425 KDZ firmware that you have downloaded
Now simply click on the Start button to begin the flashing process. Wait for few minutes until the installing process completes.
Welcome back, Now, Your phone is back to Stock. If you experience issues, please let us know in the comments below.