It seem since Medal of Honor Heroes has been used to exploit firmware. It seem now PSP Firmware could be hack as well according to certain gaming blogs especially respected Italian Blog psp-ita.com has added the following statement . Maybe as I stated before. Could be a possibly that a PSP Custom Firmware 5.55 could be release if homebrews and custom firmware developers work hard in getting it to work which we always know that always come through . Keep your eyes open for the latest news in psp custom firmware
psp-ita
Ricordate l’exploit della versione americana del gioco Medal of Honor: Heroes per il firmware 5.51? Bene, pare che la procedura sia compatibile anche con l’ultimissimo firmware 5.55, presente in alcuni UMD di recente uscita.
A seguire un video dimostrativo.