I got up to step 5 of installing a custom recovery using fastboot: The adb-fastboot version I'm using is 'platform-tools_r30.0.3-windows' linked straight from the LineageOS guide. I followed the instructions at to setup the adb-fastboot environment variables for the CLI tools. Then I followed the instructions at to a T (including installing the official LG USB drivers via the LG Bridge, as well as installing the Universal ADB Driver from ). Prior to following the directions, I updated the phone, LG V20 (H918 - T-Mobile), to the most up-to-date firmware via OTA: H91820h (Nov.
Hello, all, if you'd be so kind to help me out, I'd appreciate that very much.