It means that the cheats don't work with the rom dump of the game that you have. You don't have to restart the save; you'll need to find a rom that has the same game id as the original game id of the cheat table before you changed it.
This is probably because the game id of dump you're using doesn't match the corresponding game id of the cheat table. There were revisions of many DS games, and, many modified dumps were released into the web over a decade ago. Use r4cce to clone...
You can use r4cce to clone the cheat table for a certain game and then manually edit the Game ID/Code of the cloned table with the one of the patched rom.
Yes, that sort of pre-condition is not good for their reputation. All this card has going for it right now is that it is probably the most aesthetically pleasing DS card. For any sort of actual game-playing there are better options at much...
The official spokesperson of the EZ Flash Chinese community said in the community that it would sell more than 5,000 DS burn-in cards before considering a subsequent kernel update to add RTS, and I personally don't think it's fair to say that...
Huge disappointment that their modern DS card doesn't have RTS while their over a decade old EZ Flash Vi did.
Someone in China needs to hurry up and start churning out DSOnei clones with full 3DS version compatibility.
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