OTA Error, XT1064

Note- Please read thoroughly and answer my question with the utmost honesty if that is okay------Hello, developers, I am in need of help. I currently own the unlocked (gsm) Motorola Moto G 2nd Generation, US Version. Around February, I rooted my XT1064 with Kingroot. I did this, to get iOS 7 emojis, and nothing else. My phone is soft bricked. I recently recieved an OTA notification for Android 6.0 (marshmallow). While rooted, I tried to update the phone 3 times. Each time, the update downloaded fine, but when it came to installation, it went halfway through, flashed the android bot with the x (for errors) for a half second, then rebooted. About 2 minutes after boot, I receive an on screen pop up saying that "the installation had an error. no changed were made to your moto g" with no error code. After getting tired of this, I went to King Root settings, and did "uninstall and clear root" I kept the root backup checked. So, after unrooting, I factory reset and thought that I was all good with the update because factory reset right? WRONG. It still shows the same error message, even after factory reset. Does anyone know if this is a phone common OTA error, or if King root took some files that were needed for the OTA when I uninstalled? Help, please! PS: Marshmallow has been a long awaited update, and I hope you can help me. PPS: If you tell me to flash stock android, please provide instructions for my specific device. Also, please name the risks involved. I am fine with a soft brick, but tell me if a hard brick is possible. :)

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