I have read this question Does an iTunes iOS device backup include everything on the device? but it doesn't seem to be explicit/succinct enough and I can't find a clear list of what exactly is and isn't backed up anywhere that I would trust.
Specifically I am asking which of these things are backed up ( and if there are any others which I am leaving out )
- Settings inc email settings and and wifi passwords
- Applications and their settings
- Voice Memos
- Firmware ( which I gather is not backed up )
I have a feeling that various parts of the backup are stored in various locations so maybe that might be explained, and also I read somewhere that the backup only includes the media items if a sync has been performed so could this be explained ... ie do I have to also do a sync to ensure a full backup.
I have an iphone4 and I am backing up to my computer as opposed to iCloud.