Verizon has pushed June security update to Samsung Galaxy J3 2016 via OTA. With version J320VVRS2AQF1, the June security update for Samsung Galaxy J3 2016 includes performance improvements, enhancements including bug fixes.
If you have access to the Galaxy J3 2016, you should install the update since it provides an additional layer of security. According to Verizon, the latest update also helps to improve the overall performance of the smartphone.
Even though you can download the update via mobile if you have 4G, it is advisable to complete the process via Wi-Fi to avoid interruptions. You should note that the update will take few days to reflect on your smartphone. Hence, you need to wait if you are unable to view the message notification.
You can also check the presence of the update by navigating to Settings option. Finally, you should charge the Samsung Galaxy J3 2016 adequately to have a trouble-free installation.