Thanks for the idea Brewton,
I'll try connecting with Filezilla via the RS232. I've try using the PREV and NEXT (holding and then powering up) and also F1 and F5 (holding and the powering up)
(by powering up i mean = the operator controller the big box the teach prendant stay on was turn to OFF and after pressing the buttons and holding i turn the operator controller the big box ON) (just to sure it clear).
but both case i wasn't able to load the BootRom display where i could do a cold start or worst case a INIT Start. Cable should be good I mean it was working before he broke the machine (highly doubt it broke within 15 mins after he mess up the machine.)
Pretty sure if i manage to get to the BootRom I would we able to do a cold start or a INIT start and fix the machine. Pretty sure he din't erase the software of the machine. I mean in order to do that he would had to go into the BootRom or CMOS mode. Maybe he just just erase the teach pendant drivers.
But in order to diagnose i need to get into the BootRom ...