For step-by-step guides and specific files (like the no-verity-opt-encrypt patch often needed to prevent boot loops), the best place to check is the section on the XDA Developers Forum.
: You will typically need Odin (the Samsung flashing tool) and the latest Samsung USB Drivers on your PC. 2. Install a Custom Recovery (TWRP) root-a720f
Here is a general outline of the process most commonly used for this model: 1. Preparations For step-by-step guides and specific files (like the