This is no longer glitched, so the other solution is useless.
Load up an online head to head game with a boosting partner. Basically, YOU need to score with 7 seconds on the clock or less at the end of a quarter, after your opponent has scored. So it'll leave you around 6 seconds to run down the length of the court and make a shot (in the second and fourth quarters, calling a timeout will advance the ball to half court).
If I've missed something, let me know, and I'll update the solution.