I just tried blowing up the door with the charges and the holocron was intact.
went through light side first time and it was destroyed after I blew up the door.
this time I was fully on the darkside (dark mastery) and I could view it, so being dark side must be the key.
has anyone else been able to figure this out, or is the protocol droid that blows up the key? I skipped this door first time through but would like to figure it out this time.