Let's get started, if you are on a windows laptop/PC, then first you will have to install Linux.
So first of all you can follow my Tutorial on installing linux on your windows pc/laptop: WATCH VIDEO
After that follow the instructions in the video to setup checkra1n on Linux.
First of All download the CHECKRA1N file from their WEBSITE : LINK
After that follow the instructions to install checkra1n.
After that follow the instructions to install checkra1n.
COMMANDS USED TO INSTALL CHECKRA1N :
1) echo "deb https://assets.checkra.in/debian /" | sudo tee -a /etc/apt/sources.list
2) sudo apt-key adv --fetch-keys https://assets.checkra.in/debian/archive.key
3) sudo apt update
If you want to use checkra1n app (GUI) without installing Linux then check out this video :