Samsung is really a good phone making company but most of user face many problem in J1 one of the major is when some user using Samsung Galaxy J1 Android version 4.4 KitKat any app they want to install even the app in my SD card but they can’t install it only shows installing when I had a restart our phone it take a 5 minutes to restore app which is already in my SD card and when I download from Playstore it to 4 is showing and the person and hold installing and can’t download or update then it shows hundred percent in upper notification bar but actually it is only 70 or 80% in Play Store