Firmware
Samsung is now reportedly in the midst of rolling out last month's security update for the Galaxy C7. For those unaware, the upgrade (C7000ZHU2AQB1) transport fixes for a total of 50 bugs present in the Android OS, in addition to a handful of patches that are exclusive to the firm’s latest devices.
If you reside in one of the few markets where the Galaxy C7 is available and would like to see if the upgrade is ready for your handset, open up the Settings menu, then select the relevant option from the Software Update section under the About Device subheading.
