Hi folks, I used the below tuto for updating my son's N3ds and it worked perfectly. So Thanks for this. I also updated my other kids' O3ds consoles by replacing launcher.dat. Worked like a charm. Then I updated EmuNand to the latest version for the O3DS consoles. I read that this should not be done on the N3DS. I believe there's another way to update EmuNand on N3ds but cannot recall the name of it to search for a tutorial. So please if you know a good tuto for this, don't hesitate to point it out to me. Then reading stuff here & there, I read one could play NDS games on 3ds. Great news. My kids are still carrying both consoles. Again, where can I find a tutorial for running these .nds games on O3ds and N3ds (please dont reply Internet, I'm an old fart and could get offended as I lack humour Here's the nice tuto I used for my son's N3ds (sorry I don't know how to quote from another thread to give credit where credit is due): Turn off N3DS. Remove back cover. Remove N3DS-MicroSD card that has enuNAND. Find blank MicroSD card and put the region-specific MSET file on the root of it, as well as the new launcher.dat. If you haven't installed FlashCardTimewarp.cia, find that too and put it on this MicroSD card, next to the MSET cia and Launcher.dat. Find DevMenu.3ds, not BigBlueMenu.3ds. Put DevMenu.3ds onto the MicroSD card that's in the Gateway cartridge. Put the formerly-blank MSET MicroSD card into the N3DS and the DevMenu.3ds MicroSD card into the Gateway. Power on. Use Cubic Ninja or Zelda exploit to get into Gateway Menu. Select "NVRAM Install" and proceed with instaltion. This will install to sysNAND, because the emuNAND card is not in the N3DS right now, and that's what we want. Put Gateway cartridge into N3DS. Start Gateway Mode and launch DevMenu.3ds (by pressing select). Import the MSET CIA to install it to sysNAND (from the second tab). If you haven't installed FlashCardTimewarp.cia before, install it now. Turn off N3DS. Take out the MicroSD that's in the N3DS (behind the back cover) and replace it with the emuNAND MicroSD (ie the one that was in there before) Turn on N3DS. Go to Settings > Profile > Nintendo DS Profile to start the Gateway Menu. Fit back cover again.