Upgrading from old firmware, am confused about 5.50 prome-3 and 5.50 Gen in guides : r/psphacks
How to update to latest CFW from 5.50 Prome-4? : r/PSP
Using an xbox 360 controller on PSP Slim 2000 w/ CFW 5.50 prome-4 | GBAtemp.net - The Independent Video Game Community
5.50 Prome-4 update? | GBAtemp.net - The Independent Video Game Community
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
Red to Transparent : r/PSP
2023年最新】PSP 5.50 PROME-4の人気アイテム - メルカリ
Sony PSP 3000, 2000, or 1000 System Bundle w/ 64gb & QUALITY Battery & Charger | eBay
2023年最新】PSP 5.50 PROME-4の人気アイテム - メルカリ
5.50 Prome-4 update? | GBAtemp.net - The Independent Video Game Community
[PSP] How to Update a locked 5.50 GEN D2 CFW PSP To 6.60 Pro-C Custom Firmware | Easy Method 2022 - YouTube