Amazon wants you to throw away your old Kindle. Here's why I jailbroke mine instead
… The first thing you’ll want to keep in mind while modding a Kindle is to check your firmware version. That’s what dictates your exact path forward. If your Kindle is running firmware versions 5.16.4 through 5.18.6, you will likely be using the latest jailbreak method, called Nosebleed. …