Originally Posted by EddyOS
If you don't get it then you shouldn't have unlocked the phone in the first plce until you read up on adb/fastboot
I wish more people would actually read and understand what they're doing before
they start doing it. If you unlock/root your phone you NEED to know how to restore any changes you make, this usually means you need to know how to use ADB, the Recovery console and the Bootloader (the bare minimum of things you need to know).
If you don't know how to use any of these things stop whatever it is you're doing. It most likely wont end well.