How to get iphone image ?

https://code.google.com/p/iphone-dataprotection/

The link above outlines the steps on how to image the data partition within the iPhone. I have used the method above to successfully image the device before with good results.

JZ method used to work, i havent been able to get any of the post august releases working

Cellebrite Physical Analyser does the job well and creates an easy to read report too

JZ method works, for all you non-law enforcement, LanternLite just released their public version. It's open source and doesn't handle all of the iOS versions/devices but will eventually. You can download it free from their site, I've had good success with recovering both the data and firmware partitions.

http//lanternlite.org/?page_id=150