Help! Urgent Advice Needed

Basically ive upgraded about 5 3310s to 3315s.... i got my mate wanting hers done and i started the process.....

i managed to flash the new v5.57 fls file with Rolis but when i tried to use KNOK with the MBUS cable to set the "Quick Faid" everytime it says "cannot be executed"

so now the phone turns on but is ALWAYS on keylock as the process is only half complete

i made a backup of her ORIGINAL flash file but what do i do to load it back onto her phone???? HELP ME PLEASE!!!

need instructions if possible...

thanks in advance!

PROBLEM SOLVED NOW - reflashed the file and it worked