The firmware update version jumps from 15461.48007 to 15503.21007. But the operating system version doesn’t not change and stays at shipping version I.e 10586.13065.
But remember that if you choose to update the mobile through Windows Device Recovery Tool, you will loose all your personal data. So before using recovery tool make sure that you have taken the backup of important data to the PC.
This firmware update are important and improves the functionality of Operating system.
Download Windows Device Recovery Tool
To see how to use Windows Device Recovery Tool click here.
