[Q] What is the best way to completely reflash the stock firmware? topic

I have an XT1053 with an unlocked bootloader. I've tried factory-data-resetting to solve my issue, but it is absolutely not working. I think there is something messed up with my system partition that isn't allowing my device to recognize the "audio" folder where ringtones and notification sounds are contained. I have tried reverting to stock with this toolkit: http://forum.xda-developers.com/moto...1-2-1-t2477132
I keep getting errors when trying to do so, and I'm thinking it may have to do with some OTAblockers I may have installed as system apps. Is there a command line method that I can use to manually flash the proper system .img over what I have now so that I can flash over that with the 4.4.2 OTA?