It also removes the digital signature check from DS Download Play, allowing it to receive homebrew.
Here is a tutorial for using WMB and WiFiMe.įlashMe overwrites the Nintendo DS firmware with a modified version that checks GBA ROM space for DS-aware code, jumping to it if present, before doing anything else. WiFiMe is a DS Download Play program extracted from Super Mario 64 DS with the run address changed to GBA ROM space, but it could have been any DS Download Play program.
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The first version of the Nintendo DS BIOS's DS Download Play used a run address from a header that sat outside the digitally signed portion of the code and data. It can send small programs signed by Nintendo to the "DS Download Play" function of a receiving DS. This Windows application by FireFly requires a PCI or PCMCIA wireless network card using the Ralink chipset. Customers in most of the developed world can purchase them here or here. When the Nintendo DS tries to read the card's header, the PassMe CPLD changes the header so that the run address points to GBA ROM space. PassMe is a Game Genie-style adapter that sits between a DS card and the DS slot.
For another, DS Download Play ordinarily uses only programs signed by Nintendo, but the early firmware took the run address from a separate, unsigned header. For one thing, the DS card loader did not do any range checking to make sure that a program's run address was within the memory used by the card. The Nintendo DS firmware version 1 through 3 had a couple bugs that let us redirect execution to GBA ROM space.
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