I've seen this from the other web, go check it out! it might help until samsung does something about this problem.
"The license has expired but you can until Samsung fix the problem, download the blind play the original app https://play.google.com/store/apps/d...ile.v3_2_store"
Hi, i took note3 last month and i had same problem and called customer care and they gave some stupid suggestions. Finally i figured out how to slove it. Go to Settings-> General Tab
->application manager -> all -> SPenKeeper .tap on 'Force stop' and and then tap 'clear data'.. I think that will sove your problem.. Try once..
Just opened my Note 3 up from the box. Handwriting didn't work... Stopped the SPenKeeper and cleared cache on it. It worked! (So did setting the date back, but it would break again when the time got set back.) Rajesh Zyx's solution seems to be a more effective and less annoying fix.
No Needed any software, press a 10 sec for speaker button, you will get option to select , T , clipboard button, select , T icon, you will able to use the hand written text