A new update for the DSi renders a number of piracy-ridden flash carts unusable.
The new firmware, once installed via a WiFi connection, will stop certain flash carts from booting up on the portable. AK2I, iPlayer, EZVi and a few others have been confirmed to be affected by the update, according to reports.
Counter measures such as those in the latest update usually halt their use for a while. But it's not long before hacker find a way around it. And so the battle rages on.