MacBook Pro 15" Retina Display Mid 2012 Speakers
Good instructions. Just remember to push the knife blade in right next to the aluminium case or you will damage the plastic surround. The obvious place to stick the blade in is not the correct spot! Look carefully.
My kit came with a new glass camera cover but I could have reused the old one. The glue would have held.
I used a heat gun to heat things a bit but I am well experienced as to what it too much heat.