https://digiex.net/threads/psp-custom-firmware-pro-c2-6-61-6-60-6-39-6-35-6-20-download.15706/
PSP Custom Firmware PRO-C2 [6.61/6.60/6.39/6.35/6.20] Download | Digiex
PSP Custom Firmware PRO-C2 (14-02-2015) + Yoti mod [6.61/6.60/6.39/6.35/6.20] About: PRO Firmware is a Aftermarket Firmware for the Playstation...
psp custom firmware
https://digiex.net/threads/psp-6-61-custom-firmware-install-on-any-psp-psp-psp-slim-psp-3000-psp-go-e1000.12915/
PSP 6.61 Custom Firmware Install on any PSP - PSP, PSP Slim, PSP 3000, PSP Go & E1000 | Digiex
The PSP Custom Firmware 6.61-Pro-C2 will work on all PSP models from the original PSP to the PSP Go and even the E1000, all you need is to be running...