No.
It never works when im trading and the other person's ds/dsi/dsi xl/3ds freezes.
It tells you that the connection has failed and you need to re-do the whole connection from the start.
Hope i helped!
actually, yes it is because you always save before you trade
No.
Yes
No you can only trade between the originals for the GBC.
Yes it can. Using the Time Capsule in Gold and Silver it's possible to trade between Red, Blue, and Yellow.
YUP
go to the union room and trade
you can`t YOU HAVE TO TRADE IT BETWEEN GOLD AND SILVER CATCH MEWTO IN GOLD AND THEN TRADE IT TO SILVER I HOPE I HELPED YOU :P FROM LOLPICKET
No, you cannot trade between the two different versions because the Pokemon are different or the Pokemon know different moves that are not in red version. When they re-make gold and silver for DS there may be some way to trade between Pokemon fire red and leafgreen to the new gold and silver but I doubt it.
You trade between two games, gold, silver, or crystal.
Yes you can.
Red, Blue, Yellow, Gold, Silver, and Crystal can trade between themselves. Ruby, Sapphire, Emerald, Firered, and Leafgreen can trade between themselves. Games from list 1 cannot connect with list 2.