The N647 image is version 1.9 and it's not a 'clean' image. It has someone's email and other info. The last release for the N647 and N647B was 1.9.12, the two take different images.
I've asked some people if they have one or the other model, if they have 1.9.12, to make a backup, do a reset, do a second backup to send to you, then they could restore their first backup to the original card or take the opportunity to upgrade their internal storage.
Nobody wants to do that.
If I'd been interested in modding my N647 before it got corrupted I would have made a clean image of 1.9.12 from it.
There's an N647 on eBay for $18.95 + $5.70 shipping. The seller won't answer questions. If I knew it had the latest firmware I'd buy it to make an image.