That is the exact question. What was this droid capable of in general and what did it actually do to Leia?

I think that the ewoks are just way too harmless to defeat a few squads of well trained military humans. But, if somebody whose quantity is five time yours suddenly throws everything they have on you from an ambush... Who knows...

I personally suppose that in general some of his essential life support stuff was severely damaged... Do you think that his hand was completely artificial or there was something left of his own hand inside under the glove?

Sorry, I do not quite understand. What test?

Thank you!