Old hacked PSP 5.50 Prometheus, worth upgrade? + more questions. : r/PSP
PSP 1001 CFW 5.50 GEN-D3 with Prometheus 4 | I'm selling my … | Flickr
Yugioh Tag Force 6 working for PSP 5.50 Gen-d3 Prometheus-4 iso tool 1.978 - YouTube
Prometheus-4 for 5.00 M33, 5.03 GEN-C and 5.50 GEN-D3
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] Custom Firmware 5.50 Prometheus v2 - Plays 6.20 Games | Digiex
How To Hack PSP 5.50 Prometheus To 6.60 PRO-C - YouTube