I337MUMUFNI1 Android 4.4.2 KitKat Firmware for Galaxy S4 SGH-I337M - How to Install

I337MUMUFNI1 Android 4.4.2 KitKat Firmware Last Updated on 16-Sep-2014. Download and update the latest UMUFNI1 Android 4.4.2 KitKat official firmware on Samsung Galaxy S4 SGH-I337M (Canada). Samsung recently started rolling out an OTA update about the firmware. The latest firmware build version number is I337MUMUFNI1. The Smartphone was released with Android 4.2.2 Jelly Bean and later updated to