Reread through the manual until the instructions are crystal clear in your head.
(of language) transparently clear; easily understandable; "writes in a limpid style"; "lucid directions"; "a luculent oration"- Robert Burton; "pellucid prose"; "a crystal clear explanation"; "a perspicuous argument"
emphasis If you say that a message or statement is crystal clear, you are emphasizing that it is very easy to understand. The message is crystal clear -- if you lose weight, you will have a happier, healthier, better life
transmitting light; able to be seen through with clarity; "the cold crystalline water of melted snow"; "crystal clear skies"; "could see the sand on the bottom of the limpid pool"; "lucid air"; "a pellucid brook"; "transparent cristal"
Water that is crystal clear is absolutely clear and transparent like glass. The cliffs, lapped by a crystal-clear sea, remind her of Capri
[ 'kris-t&l ] (noun.) 13th century. Emphatic form of clear in visual and metaphorical “understandable” senses. Compare clear as a bell (“very clear (of sound)”).