I am looking on an ios device. The field zdisconnected_cause is an integer field, but I can't find an explanation of what the values of the field mean, or what blanks mean. Anyone know where a table structure and definitions are located for apple database? Is there a website? A book?

1 Answer 1


Was in a similar boat. That's "private API" and not documented, so our best approach is to check for regularities in the values and make informed guesses.

I know it's not much of a help, but I personally decided to ignore this field and a couple of others because I could make neither heads not tails from it.

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