While holding the button, connect your phone to the PC using your USB cable.

: Essential for your computer to recognize the phone in Download Mode.

Select the or "PARTITION DL" option depending on your goal: UPGRADE : Keeps your data (use for simple updates).

Some LG phones have a hardware fuse that blows if you try to downgrade. Even with patched software, forcing a downgrade on an ARB-protected phone will permanently brick the device. Cross-flashing Issues:

UPPERCUT.exe and patched LGUP.exe files are often flagged by antivirus software (such as Windows Defender) as potentially harmful. This is a false positive because these tools use unconventional methods to bypass LG’s official restrictions. Add the folder to your antivirus exceptions list before running.

Updates the system while attempting to keep user data intact. Start Flashing: Load your KDZ file and click

: You must install the LG Mobile USB Drivers so your PC can communicate with the phone.

Download and install the latest official LG USB drivers on your Windows PC so the computer detects Download Mode. Step-by-Step Installation and Flashing Guide

NuGet Package Explorer

Lgup 1.17 Patched !new! Jun 2026

While holding the button, connect your phone to the PC using your USB cable.

: Essential for your computer to recognize the phone in Download Mode.

Select the or "PARTITION DL" option depending on your goal: UPGRADE : Keeps your data (use for simple updates). lgup 1.17 patched

Some LG phones have a hardware fuse that blows if you try to downgrade. Even with patched software, forcing a downgrade on an ARB-protected phone will permanently brick the device. Cross-flashing Issues:

UPPERCUT.exe and patched LGUP.exe files are often flagged by antivirus software (such as Windows Defender) as potentially harmful. This is a false positive because these tools use unconventional methods to bypass LG’s official restrictions. Add the folder to your antivirus exceptions list before running. While holding the button, connect your phone to

Updates the system while attempting to keep user data intact. Start Flashing: Load your KDZ file and click

: You must install the LG Mobile USB Drivers so your PC can communicate with the phone. Some LG phones have a hardware fuse that

Download and install the latest official LG USB drivers on your Windows PC so the computer detects Download Mode. Step-by-Step Installation and Flashing Guide