There is no way to trade between Emerald and Diamond, because they are for different systems. The closest thing is that if your friend has beaten the game then you can put your Emerald into his DS and put your Pokemon into his game. The only problem is that you can't trade Pokemon from Diamond to Emerald, only Emerald to Diamond.
however there is a way to get the Pokemon from a GBA cartridge to the DS cartridge. when you get in to the Pal Park supposedly if you have a GBA cartridge in the slot2 and a DS Pokemon game in slot1 the Pokemon from the GBA cartridge will "migrate" to the slot1 game.
Put the adapter in the GBA/GBASP and talk to the lady upstairs in the Pokemon center if she lets you in the union room this means the adapter is working if not re hook up the adapter and try again.
you have to have a adapter
u cant u have to have mstery gith and 4 connected players
Yes You Can.
okay the wireless adapter isn't just for fire red for one and a wireless adapter is what you use to hook up 2 game boys together wirelessly.
Put the adapter in the GBA/GBASP and talk to the lady upstairs in the Pokemon center if she lets you in the union room this means the adapter is working if not re hook up the adapter and try again.
Make sure its hooked up properly in your gba or gbasp if not blow it and push it in HARD! Then talk to the lady upstairs in any Pokemon center that will take you to the union she will take you in if your connected properly.
My best answer to this question is make sure both wireless adapters are properly connected. Make sure they are in working order.
U can trade with the help of a wireless adapter.
you have to have a adapter
u cant u have to have mstery gith and 4 connected players
Yes You Can.
Yes.
Usually wireless adapters can be connected to computers not to modems.
yes, emerald is combatible with the wireless adapter... but it is not compatible with the built in wireless in the Nintendo DS
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You can get an e-card for an event, but without that or a wireless adapter it is impossible.