Booting PSP in Jpcsp - Low Level Emulation

[onelight]

Using the latest version (a4f15d1 or later), I am now able to run the CFW PRO-C for the firmware 6.61... and also run the cube.iso sample application from the CFW

How to run CFW PRO-C ?

Copy the PRO-C files (for 6.61) under ms0/PSP/GAME like you would on a real PSP,
run the PSP official 6.61 Firmware update, and when it reboots to the VSH, run the "661 PRO-C Updater", this will install the PRO-C files under flash0 and again reboot the PSP. Now you are under CFW PRO-C.

When you close Jpcsp and restart using the "--reboot" command line option, you will need to run again the "661 PRO-C Fast Recovery" to reactivate the CFW (like you would need to do on a real PSP after a cold reboot).

install pro-c failed