Does it come with the update cord and the disk? If not its useless. It has to be updated with June 2013 new requirements and this can only be done with the cord
It can still be used without that. My step brother is the one who owned this and it was bought used without a cord and he says it worked just fine. Ill put it in my ds and check
The Action Replay is not useless. If one's intent is for cheating in "Pokemon GAMes over the 4th-5th generation series, THan it will not work unless te Software for the AR itself is updated. This is perfectly fine if you are using it for other games. It would work on Pokemon Diamond + Pearl, New Super Mario Bros., etc..
All you need is the cord to update this AR on a PC. Find the software online, with no disc needed. So it works on ONLY the Nintendo DS, & DS. Lite no matter what software version it has.