If you own an LG smartphone—especially models from the G5, V20, G6, V30, G7, V35, V40, G8, or V50 era—you have likely encountered the dreaded "Device model is different. Check DLL" error. This is LG’s built-in firmware verification system, designed to prevent users from flashing the wrong software.
Click on the section at the bottom, click the three dots ( ... ), and select your downloaded .kdz firmware file. Click the Start button. lgup 117 patched upd