If hes only just freshly hacked it then you need to open up the vsh menu in the xmb by pressing select, scrolling down to iso mode and changing it off normal to something like the m33 driver or the sony driver.

If its already on a proper iso driver then your probably trying to run a recent game that m33 cannot manually decrypt. It which case yea you need to move to a new firmware.

follow this guide: http://endlessparadigm.com/forum/showthr...?tid=26342