I've researched for hours on the internet and tried almost every suggested solution, but nothing seems to help. It's a well researched problem. I have a PSP 1000, using 5.50 Prometheus 4 and Popsloader containing pops from 3.00-3.003, 3.10, 3.11, 3.30, 3.40, 3.51, 3.52, 3.71, 3.72, 3.80, 3.90 and 4.01. I'm playing Megaman Legends 2 and completed the Pokte Island mission. But when I climb up the ladder and the screen finishes with the zero in transition, I get stuck at a black screen (although I can still use the Home menu). The popular solution is to run 3.71 pops to bypass the glitch, but the PSP doesn't even start the game unless I use 3.72 pops. If I try to use 3.71 and below, it returns to the home screen with an error message "The game could not be started. (80000004)." I know that the 2nd Floor Flutter ladder issue is impossible to solve, but I've read that people are bypassing this particular Pokte Island glitch using 3.71 pops. I'd like some help regarding this. What am I doing wrong? Am I missing something?