I followed this guide (https://gbatemp.net/threads/how-to-dump-your-own-3ds-ds-games-saves.274290/) on backing up DS games with EZ-Flash IV (which is slot 2). I'm using the original Nintendo DS. I downloaded Wood Dumper Slot 2. I DLDI patched the wooddumper_slot2.nds file from this site (http://chishm.drunkencoders.com/DLDI/). I followed the instructions from the site (downloading http://chishm.drunkencoders.com/DLDI/downloads/ezsd.dldi and the patching software and it has packed the wooddumper_slot2.nds file successfully. I copy the patched wooddumper_slot2.nds file to my R4 RTS 3DS SDHC DS card (which can read DS files. I have that (slot 1) and my EZ-Flash IV card (slot 2) of my DS. I boot up the DS game and the screen says version: r27 Set a Target card. <A>: OK I press A and the message I got was: card it: 0x0 secure cardid fail: ffffffff dump fail. EXTRACT card. After explaining all of this to you, am I'm doing anything wrong? I was searching for a youtube video on this and can't find any. When select a target card appears. I took out the DS cartridge and put in the game cartridge and it says: 0xfc2 secure area ok.