Just got the pen. Tried to connect with my samsung s4. The bluetooth works (app says that pen has 50% battery life). Nothing happens when I check the notebook. Nothing happens when I start writing. Not sure what is going on but it's not working.
Update:
we have also tried with iPhone 6+ and iPad 2nd generation. Simply not working. The app sees the pen (tells us about battery life). What is suppose to happen after opening the app? Nothing is happening and we have tried to check the notebooks (and tried to write on pages). nothing.