with the ds link if you have flashme on your dslite, you can return it back to official nintendo firmware using dslink "which noflashme can't for dslite". They put out a program to do so. But you will need to use the program to get a dump of a dslite firmware that doesn't have flashme on it. Also I think you need flashme inorder to use the dslink. You can get the mk4 mini to boot into it I think. I took a dump of the mk4 mini, and put it on my SCDS and when you start it up you have a choice to boot nds or gba slot. If you boot nds it says take out mk4 and enter dslink, and then press A. GBA it just boots to slot 2 like a regular passme does.