ok im trying to flash down to 4.01 m33-2 with hellcats recovery flasher 1.4

i got the 4.01 m3-2 EOBOOT.PHP in the recover older,renamed to 401.PHP

i go into the recovery flasher,and click flash to 4.01 M33-2,it says there have been critical errors and shit like that,anyne know why?

Psp-1k
cfw 5.00 M33-4