Hmmm, this happens so many times, so i'm wondering if i'm doing anything wrong. When i try to go to recovery/fast boot mode i get like a Android with a "!" point. Am i doing anything wrong?Ok, thanks Do you mean update.apk or zip?
It's like this pic: http://img155.imageshack.us/img155/4863/photo0019n.jpg but you can see the text only the android and the "!"
EDIT: When i did it, it went into Factory mode instead of Fastboot mode, do you have a clue why?