Older iOS support?

[allenm518]

Hi great tool, thank you for making it available.

I am attempting to recover messages and attachments from older iPhones before donating them. One of which is on iOS 9, when I point the path to the back up folder, I received the following error

Invalid configuration: Specified path /Users/allenm/Library/Application Support/MobileSync/Backup/old_phone/ is not a valid SQLite database file!

And then included the iOS option and received the following error:

Invalid configuration: Database file /Users/allenm/Library/Application Support/MobileSync/Backup/old_phone/3d/3d0d7e5fb2ce288813306e4d4636395e047a3d28 does not exist at the specified path!

In my backup folder, there are no nested folders such as 3D. Within the backup folder, there are only the database files.

So instead, I point the back up to the chat database folder 3d0d7e5fb2ce288813306e4d4636395e047a3d28. This works and does export text messages, however, no attachments are found. In the terminal I get repeated errors that attachments were not found at the specified path. the listed paths have multiple nested folders, which again I do not have in my backup folder. When I include the iOS option, having pointed to the chat database file, I receive the error

Invalid configuration: Database file /Users/allenm/Library/Application Support/MobileSync/Backup/old_phone/3d0d7e5fb2ce288813306e4d4636395e047a3d28/3d/3d0d7e5fb2ce288813306e4d4636395e047a3d28 does not exist at the specified path!

This seems like it is an issue with the architecture that iMessage exporter is expecting for iOS back up. Is there a limit to how old an iOS version I can extract messages and attachments from?