Security
- System software stability during use of some features has been improved.
- Home
- Firmware
- PSP Firmware
- PSP System Software Ver. 5.51
One comment on “PSP System Software Ver. 5.51”
Leave a Reply Cancel reply
This site uses Akismet to reduce spam. Learn how your comment data is processed.
i have upgrade 3.80 m33 to 5.51 but game are not playing in this firmware can u help me to update to 5.51 m33-6