[Hiphopopotamus]

If you need to copy the advancedsettings.xml and sources.xml to the Shield, just copy them to a share folder, then from the Shield use ES and select LAN, then Scan for your shares or manual input the your shares IP.
Navigate to where the files are located and select the first file, press an hold the OK/Select button until the first one has a check mark, then select the next file. Select Copy, then in ES navigate to /sdcard/Android/data/org.xbmc.kodi/files/.kodi/userdata/ and the Paste.

This worked thanks. I had to enter the NAS's IP as scan gave me no result. Also had to go to ES settings and turn on Show Hidden Files of course.