ok
i have fixed this problem! (these are the steps to took)
connect the empeg to PC via serial cable NO POWER
run firmware upgrade file v3.00-alpha11
wait till application trys to apply power to empeg
then plug in power and then firmware should install (this is where the screen become active again whilest a reboot was performed by application. also HDD spolled up and also become active.
after this was compleated empeg operates as normal.
the above process was tried with the Mk.2 HDD Builder (upgrade file) which caused this problem but the result ended in same error which crashed the unit ("could'nt find pump" occured during stage 0x20)

i hope that others read this and can solve this problem if it happens to them.
also thanks to everyone for there support and response
( i should problery read instrustions before attempting things like this to my beloved unit, if there any instructions to be found?)