Regarding digitizers not working. While I am sure a many these problems are caused by a "new bad digitizer" or a "bad daughter board" my experience was that after I replaced the LCD and first tried to use my TF300T the digitizer did not work. I went back in and very carefully and thoroughly removed and then reinserted the ribbon cables from the digitizer to the daughter board. I very carefully and gently "rocked" the connectors back and forth as I reinserted them (helps clean the contacts and makes for complete insertion) making sure they were inserted completely. Much to my relief after I did this the digitizer worked! These connectors are a b*itch and it is worth spending time making sure they are not the problem before moving onto harder and more expensive possible solution.