How to fix PSP ISO games and make them work

Unable to play a certain ISO or CSO? You got those new games and just can't seem to get them to work? even after trying every options in the recovery menu?
there's a great solution to that, Make your own fix!

Follow the steps!

1-Download ISO Tool 1.51 v2

2-Extract it

3-If patching from a PSP 1000 or 2000, copy the ISO from PSP 1000&2000 from to ISO folder on your PSP
If patching from a PSP 3000, copy the ISO from PSP 3000 to ISO folder on your PSP
If patching MGSPW game on either model, copy the ISO from MGSPW folder to ISO folder on your PSP
If patching KHBBS game on either model, copy the ISO from KHBBS to ISO folder on your PSP

4-Open the application from Game - Memory Stick on your PSP

5-Navigate to your ISO and press X ( note to enter a folder if you have game categories, click d-pad right, and to get out of that folder, click d-pad left )

6-Choose Eboot Decrypt.

7-It'll ask you if you wanna make a backup, click no

8-On the next two questions, pick yes

9-When it's done, click X on your ISO again and choose patch this time

10-Choose prometheus method

Those are the steps for 5.50 users

Extra steps needed for 5.00 M33 :

11-Navigate to your ISO, press X

12-Choose PRX import

13-Pick libfont.prx import

14-You're done!