![Downgrading 3004 from 6.61 PRO-C2∞ to 6.60, error LPTFFFFFFFE, still boots into 6.60, UMD not working · Issue #2 · DaveeFTW/Chronoswitch · GitHub Downgrading 3004 from 6.61 PRO-C2∞ to 6.60, error LPTFFFFFFFE, still boots into 6.60, UMD not working · Issue #2 · DaveeFTW/Chronoswitch · GitHub](https://user-images.githubusercontent.com/15619500/77172675-46a48280-6ab6-11ea-95dd-cdf5b7b7ca7e.png)
Downgrading 3004 from 6.61 PRO-C2∞ to 6.60, error LPTFFFFFFFE, still boots into 6.60, UMD not working · Issue #2 · DaveeFTW/Chronoswitch · GitHub
Infinity 2.0 released for the PSP, allows for persistent CFW on all models of PSPs on 6.60 and 6.61 | GBAtemp.net - The Independent Video Game Community
![[PSPHACKS 1.01] How To Install 6.60 PRO-C Fix 3 using Infinity 2.0.3 Permanent Custom Firmware - YouTube [PSPHACKS 1.01] How To Install 6.60 PRO-C Fix 3 using Infinity 2.0.3 Permanent Custom Firmware - YouTube](https://i.ytimg.com/vi/_KkkUh_8IeI/hq720.jpg?sqp=-oaymwEhCK4FEIIDSFryq4qpAxMIARUAAAAAGAElAADIQj0AgKJD&rs=AOn4CLB4riaguVciSH8TvAku7SbcXWz2rw)