There is a Youtube video (maybe more than 1) out there somewhere illustrating a tear down and rebuild.... I used it the first time I worked on one of mine.
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How big is the file?I have the SP service video but it's a large file and I've never figured out how to share it.
How big is the file?
The easiest way to share it would be to upload it to something Google Drive or Dropbox, then create a sharable link.
Share files from Google Drive - Computer - Google Drive Help
You can share the files and folders that you store in Google Drive with anyone. When you share from Google Drive, you can control whether people can edit, comment on, or only opensupport.google.com
1.4Gb