This was a helpful tutorial, except for two small points. #1 - The yellow & red dots on step 1 are reversed; the T5 screws are the six along the two edges of the back panel and the P0 (Phillips #0) screws are under the face plate. #2 - the battery cable should ALWAYS be unplugged for component safety prior to doing any work on a laptop. An additional safety step (though optional) would be to physically remove the battery from the laptop prior to doing any work on it.