Surely from here

 

Finally got it to work by following the instructions from http://cyclods.theta.in/wiki/EZFlash_V_3-in-1

The solution was to download Rudolph's "NDS Backup Tool 3in1".
http://filetrip.net/file.php?id=2486
(the website says there is a newer version, ignore it, this is the latest version)

It worked right away. I guess Wood Dumper is just not compatible.

 

NDS Backup Tools is considered no longer good enough for proper dumps, especially to the scene. It's missing data bytes in the header or some such thing. That's why Wood Dumper is now used in its place.

I have 3 different slot2 carts and could only get Wood Dumper working on one of them, the Supercard miniSD. I couldn't get my EZFlash IV or M3 Perfect to work with it. I tried multiple different DLDI patches and even that DLDINoApp thing....nothing worked, except for on the Supercard. It seems Wood Dumper is kinda picky about which slot2 carts it wants to work on.

EDIT: Oh, and don't bump threads. It's against forum rules.