I've had the same issue, but it's not G6 or Passcard related (at least not for me). Search YouTube for DS Lite Power Glitch - you'll see other people with the same defect. I could reproduce it by pressing UP+Y+B. The DS would shut off even without a game in the slot.
This is the 2nd DS Lite...
@Psionic Roshambo You lucky they coming to install on a Sunday...Or that they didn't say "They will be there sometime between Sunday 12pm to Saturday 12am." Lol
hi guys, i installed some games using the WUP installer and in the settings the drive shows the games, but they are not visible on the Wii U menu. Can someone help? Thanks