T-mobile LG LEON LTE H345: How to Unbrick and Restore Stock Firmware

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T-mobile LG LEON LTE H345 users who need to unbrick their devices and restore stock firmware may follow our step-by-step guide. Using LG UP to flash Stock KDZ firmware is a new and easy way to unbrick or restore your device.

What you need:

LG USB Drivers Ver. 4.0
LG UP DLL for LG H345: LGH345_DLL.zip
LG UP Flash Tool: LGUP_Install_Ver_1_14_3.msi
LG LEON LTE H345 Stock Firmware: H34510g_00_1216.kdz

How to Unbrick T-mobile LG LEON LTE H345 and Restore Stock Firmware:

Step 1, Install the latest LG USB Drivers

Step 2, Install the LG UP Software – LGUP_Install_Ver_1_14_3.msi

Step 3, Unzip LGH345_DLL.zip and install the LGH345_DLL.msi

Step 4, Reboot your Computer, and reboot your cell phone.

Step 5, Now connect your Phone to PC Via USB Cable and Run the LG UP Software

Wait until LG UP detect your Phone. If LG UP screen shows up, Go Step 6.

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. Go Step 6

Step 6, From LG UP Screen, click on the Upgrade option

Click Bin File and Select the KDZ file (H34510g_00_1216.kdz) that you have downloaded

now simply click on the Start button to begin the flashing process. Now 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