: Locate the installation folder (usually C:\Program Files (x86)\LG Electronics\LGUP ). Replace the original LGUP.exe with your patched version . Setup the Common DLL :
LG introduced Anti-Rollback (ARB) to prevent users from downgrading to older, potentially exploitable firmware. The patched version ignores ARB flags, allowing downgrades. lgup 1.17 patched
Change the USB cable, use a USB 2.0 port instead of USB 3.0, or restart the PC. To make sure this works for you, let me know: What is your exact LG phone model (e.g., LM-V405UA)? : Locate the installation folder (usually C:\Program Files