My PSP is brock I was doing PSP infinity cfw how to fix it

Can anyone give sum idea what I do I was installing infinity cfw on my PSP e1004 when I was doing the system update my PSP turn of and its not responding Just green light turned on for 5 or 6 seconds and then it turned of I don't know what to do with my PSP e1004 it has been updated (6.60 to 6.61 or 6.61 pro c) can anyone help me out