NOTE: Attempting the tutorial is done so at your own risk. Any time you modify your phone, the results are 100% your own responsibility. I recommend backing up any very important data, such as documents, pictures etc… to your PC or to the cloud prior to continuing. That being said, I’ve done this many times before without issue.
If you’re a veteran, you may only need to see steps 1, 4 and 5 and note you may need to use SP Flash 3.1344. If you’re a novice, you may want to read through all of the notes and steps.