Be super careful if you are using plastic razor blades - if you go too hard on the back of the screen (the black sections on the edge where residue will be left) you can cause scoring of the tint. I also used the wrong cleaner in this area too - I used alcohol screen wipes which (with too much rubbing by me) caused some very light tint removal in a couple of places. Just use the goo gone as per above take your time with a cotton swab and the sticky stuff will come off. Re the tint damage (it’s hardly visible) but I’m thinking a black marker may fix this, anyone any suggestions? Does mean will have to redo the whole thing again but practice makes....