[Tutorial] Hex Editing - Unlocking DLC without CFW or Sigpatch!

Special thanks to @raphamotta for his detailed tutorial(s) on this subject. This one serves as a more detailed explanation of the hex editing portions of his tutorial, which can be found here:

http://gbatemp.net/threads/tutorial...d-on-sysnand-without-cfw-or-aocptcher.464178/

Assumptions:

[Tutorial] Hex Editing - Unlocking DLC without CFW or Sigpatch!