Commercial support for creating backup files exist.
So there are two different things that you may see.
At the top, we have the File System extraction.
This was created with UFED.
And do you see how it has backup0, backup1, 2, 3, and so
on?
That's how many times I had to press Backup My Data, Backup My
Data.
Then we could see here we have Google Android Backup ADB.
We can see I loaded a backup.ab, and we have all
of the data files listed here.
Now, what gets frustrating, the default for Android
is to not include user databases for applications in the backup.
So even though you look at this, and you're like,
oh, it's got 71 files.
It has this many files.
You may find that the user database that you're
hoping to see is missing.
We are going to need to get full file system access to gain
rights to look at those files.
Something else you're going to see
is the file paths may not make sense, depending the type
of extraction that you have.
So what I recommend is that, instead of looking at data,
data, com, Android, providers, telephony, sms, mms DB,
look for mmssms.db.
Just search for the database name.
Simplify it.
Don't dig so deep that you can't find the full paths.
The paths may not match.
The database will match if and only if it exists.
So use your cheat sheet.
Get ready to dig.
Do not be intimidated.
Keyword search.
Look for anything you can to get a glimpse of what you see.
Backups of Android may be extremely restricted.
That's the bottom line.