Aus dem Wiki-Link in #3 :
The word "brick", when used in reference to consumer electronics, describes an electronic device such as a mobile device, game console, or router that, due to severe physical damage, a serious misconfiguration, corrupted firmware, or a hardware problem, can no longer function; hence, it becomes as technologically useful as a brick, hence the name.
The term derives from the vaguely rectangular shape of many electronic devices (and their detachable power supplies) and the suggestion that the device can function only as a lifeless, square object, such as paperweight or doorstop.
This term is commonly used as a verb. For example, "I bricked my MP3 player when I tried to modify its firmware." It can also be used as a noun, for example, "If it's corrupted and you apply using fastboot, your device is a brick."
In the common usage of the term, "bricking" suggests that the damage is so serious as to have rendered the device dead. ...