How Do I Put Custom Firmware On My Psp Slim admin | August 16, 2012 | Custom Firmware/ROM | No Comments Please Help I Dont Know Whats Wrong!!!! Please Comment Tags:custom, firmware, slim Add a Comment Cancel replyYour email address will not be published. Required fields are marked *Comment:*Name:* Email Address:* Website: Save my name, email, and website in this browser for the next time I comment. This site uses Akismet to reduce spam. Learn how your comment data is processed.