Here are our Glitches for NBA 2K14 on Playstation 4. The most trustworthy items get the most 'thumbs up' from our users and appear nearer the top!
First, gather about 310-320 SP. Next, find a signature jump shot that costs 300 SP.
Now simply buy it, and if the 2K gods smile on you, you will have a negative amount of SP.
Buy anything else, and you can, so simply buy everything! (I personally did it with 315 SP, and it worked).
Enjoy your utter domination!