I got an update yesterday and i updated my mobile.. post that, it is behaving very weirdly.. samsung m30s galaxy black screen came all of a sudden while using an application and it prompted for password and it didn't let me input that. I struggled al...

Apps not getting updated automatically.  Able to see above error in playstore. What should i do. Any help is appreciated. 

Even though I have set apps to be updated automatically over wifi, it is not happening. Just wondering why?

Unable to install secure folder in Samsung m30s