Just found my PSP. It has version 5.50 Gen-B. Don't remember when I updated it last. What is the last version and is there any reasons for me to update? Are there
PSP] PSP-2005 5.50 PROME-4 : 네이버 블로그
Upgrading from old firmware, am confused about 5.50 prome-3 and 5.50 Gen in guides : r/psphacks