Samsung Galaxy K Zoom (SM-C1158) Firmware Overview
The archive lists 2 official builds for the Samsung Galaxy K Zoom across 1 region (CSC). The newest one is C1158ZMU1ANF2, released February 24, 2015 with Android 4.4.2. It is a feature update on bootloader binary 1: once a phone runs it, firmware with a lower binary can no longer be flashed (how to read a build number).
How to Flash SM-C1158 Firmware
Put the Samsung Galaxy K Zoom into Download Mode, load the BL, AP, CP and CSC files into Odin on a Windows PC and press Start. Pick a build with the same or a higher Bit than the one installed — a lower bootloader binary will be rejected.