https://www.instructables.com/id/Read-a ... pberry-Pi/
Is there a common reason this would happen? No wire connections were changed, or at least, they were the same as they had been for weeks with full connections and no issues. In putty using the "piTest -d" command, the module went from "present" to "present but not configured" to "not present, data not available", all in the same session (shown in the image).
This was rather unexpected, so help is appreciated!