Infinity 2.0 released for the PSP, allows for persistent CFW on all models of PSPs on 6.60 and 6.61 | Page 2 | GBAtemp.net - The Independent Video Game Community
Free Mobile Gaming - PSP (L)ME Firmware 6.20--2.2, 6.39-10.2, 6.60-2.2: Bug Fixes For The Ultimate CFW Software Download
Permanent CFW for ALL PSP (6.20 PRO-B5) [Tutorial] (ISO/CSO on XMB, no ISO tool) - YouTube
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Sony PSP Go Console Black Version 6.20 + 6 Games + USB Charger | eBay