Then it's time for you to learn. The page has step-by-step instructions. There isn't any way too dumb down the instructions.
You have to start somewhere. Now is a good time. If you had learned before, you wouldn't be in this predicament.
Why would you ever relock the bootloader? The only thing that prevents an OTA from being successful is a custom recovery. An unlocked bootloader doesn't affect anything. And please stop recommending the use of a toolkit.
I'll dig around in all my backups.
There are so many issues with the update:
1. The app is now ad-supported, but it's free! I paid for the app so I wouldn't see ads.
2. Forum navigation is cumbersome. Why would you force users to tap the most di...
Modifications might bring about improvements, but they can also bring about bugs.
Or better yet, instead of adb sideload, boot into TWRP then use adb push rom.zip /sdcard. Flash normally in TWRP.