Samsung has been releasing June security patches to most of their devices as Google has released the June security patch to most of the OEMs. The smartphones that are getting the security patch for the month of June are the Samsung Galaxy S4 as well as the S5 Mini. This smartphone was released three years back as flagship devices in their respective years. However, Samsung has still been releasing updates to these old devices which is very good for the users of these particular devices.
The security patch from June is the most secure security patch from Google and the various security flaws that were present earlier have been fixed after this update. Samsung has released the June security patch with build number G800FXXU1CQE1 for Samsung Galaxy S5 Mini. On the other hand, Samsung Galaxy S4 (China) update comes with build number I9500ZCUIQD1. As we have already known, the update takes care of various security vulnerabilities and brings along fixes to existing bugs. You can also expect performance and stability improvements from the update so make sure to download the update to your device so that you get all the improvements and bug fixes that were present on your phone with this update.
As is the case with every update, whether it is a security patch or a software update, it is always advisable to take a backup of your device as the update might be damaged or corrupted and you may lose your important data. Also, the battery on your device should be at least 50% or above to make sure that the installation process wll be installed on the phone with proper battery on your phone so that after the installation of the phone, you can be able to try out the newest improvements to your phone after the update.