mobile

I brought this up in another thread, but haven't found a working solution. Searches have told me that editing the gpio-keys.kl file under system/user/keylayout would allow me to disable the home button waking the phone, but it has had no effect. Before editing, it reads:
KEY 172 HOME WAKE_DROPPED
With the folder mounted r/w, I have tried deleting parts of the line, all of it, and canceling it out with #, but there seems to be no effect upon reboot. Due to the large amount of guides following this method that have shown up in my searches, I wonder if it has to do with a different folder organization due to the 5.0 upgrade that this trick no longer works.
Has anybody here been able to do this successfully?
Thanks.