I'll start by asking is this a Superpass2 or a Passkey2, as you made the mistake of calling one the other in another topic. Have you switched the Passkey2/Superpass2 to the '2' position and not '1'? Have you programmed the device to use the game you have plugged into it? Is it only one white screen or two? Have you tried unplugging everything and trying again?
Yes they should all be compatible with each other. Despite the fact that both the Supercard and Superpass2 are both made of cheap components and are of crap build quality shouldn't effect how they work with the DS Lie.
Yes, the M3 works flawlessly with the DS Lite, in fact I highly recommend the use of the M3 with the DS Lite as an alternative to the cheap crappy Supercard.
@mkenna Try all these things.. Have you switched the Passkey2/Superpass2 to the '2' position and not '1'? Have you programmed the device to use the game you have plugged into it? Is it only one white screen or two? Have you tried unplugging everything and trying again? Then post back edit: if youve tried everything then go out and buy a m3.
If it's a Passkey2 i'd be able to help you. However the Superpass2 needs to be programmed in a different way, so I can't help. Try looking on the supercard website for the guide on how to do it.
i live in canada, heres where i got mine http://www.divineo.cn/cgi-bin/div-cn/ds-m3cfnp (sorry if im not allowed to post link) Not sure where they are located but arived fast, also you can try on eBay.
The above link has the item sent from china. This is the SD version, and is sent from within the USA: http://www.divineo.com/cgi-bin/div-us/dd-ds-m3sdp2