I use WatchON(TV). It originally came pre loaded on my note 3. But u can also download it from the Samsung app store, it is not available in the Google play store. And I highly recommend it. Also, I'm not sure what your talking about. I have pdf file shortcuts on my home screen, but Everytime i click it it bring up the 'open with' screen with Adobe, kindle and Polaris options. I click 'adobe' then 'always' before the update, this would be all I had to do, then Everytime I click on a pdf it would automatically open with Adobe. It says my defaults were saved after I say always open with Adobe, yet it doesn't. Also I have tried going into the setting, app settings and if I click on adobe it says it is set to open as default for some things...I have tried clearing the default and resetting it, but it still asks Everytime, it won't just open with Adobe. And if u go into general settings there is now an option called defaults, but when I go into that setting it only gives me the option for default home setting and default message setting. There are no other options...could it possibly be an Adobe issue with the new update and no one has caught it yet? I am going to try a few more things to see if it's all defaults or just adobe, I will post with my findings