Hey folks this post was written by Gaurav Rawal (If i am not wrong. It was written GR). This post was very interesting so we thought to share this with you.
Manually Backup All iDevice Data
iTunes is not reliable, so you guys must learn how to manually backup your data:

Criteria:
Jailbroken devices
iFunbox (Windows)

CyberDuck (MAC)

How to save Contacts Database:

SSH into the iPhone and go to /private/var/mobile/Library/AddressBook
you will find 2 files there. save them on your computer.

How to save Messages Database:
SSH to your iPhone and go to /private/var/mobile/Library/SMS
Save sms.db on your computer

How to backup Calendar:
SSH into your device and go to /private/var/mobile/Library/Calendar
Copy Calendar.sqlitedb to your computer

How to backup Notes:
SSH into your dedvice and go to /private/var/mobile/Library/Notes
Copy notes.db and notes.idx to your computer

How to backup Visual Voicemail:
SSH into your device
go to var/mobile/Library/Voicemail/voicemail.db
Individual voicemails are stored as 1.amr, 2.amr, etc. in the same folder. If you’ve recorded a custom greeting, it’s stored as Greeting.amr.

How to backup videos from 3rd party apps:
Cycorder
SSH into your device
go to /private/var/mobile/media/videos

iPhone Video Recorder for 3G:
SSH into your device
go to /private/var/mobile/media/iphonevideorecorder/

How to backup files downloaded with Safari DL Plug-In
SSH into your device
go to /var/mobile/Library/Downloads

How to backup your Call History:
SSH into your iPhone
go to /var/mobile/Library/CallHistory/
copy call_history.db to your computer

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