It's best practice to update the stock OS on the device to make sure it's running the latest firmware before proceeding with these instructions. This avoids running - into bugs in older firmware versions. It's known that the early Pixel 2 and Pixel 2 XL - bootloader versions have weird quirks with unlocking. There aren't known issues on - other devices, but this is still a good idea. You can either do this via over-the-air - updates or sideload a full update from their - full update package page.
+ into bugs, missing features or other differences in older firmware versions. Early + Pixel 2 and Pixel 2 XL bootloader versions use a non-standard unlocking system not + covered by these installation instructions. You can either update the device via + over-the-air updates or sideload a full update, which for Pixel phones can be obtained + from the full update package + page.