hi guys just got the k900 for my gf. just some minor question. I have set the tap screen for screen unlock but it only works sometimes. did everyone having the same problem? is it the phone problem or its the rom problem. found out that stock rom is kinda laggy.

i see so the original cover is recomended?? how much does it cost?? now i am using a 3rd party cover but i don't think its a smart cover.