Hi,
I tried it earlier and YES it does fix the issue with Picochat. My daughters DSLite also crashed when going in to Setup after running noflashme, this is also resolved.
You may need this (to remove Flashme) if you ever move to a slot 1 only solution and want to have a slot 2 card in place...
although i ended up accidentally changing my nand with no way of going back bc i didn't know you needed a gamecube controller to restore it (i have a wii minus/1.1, which doesn't have gamecube controller support)
and if i find the sd card i have my NAND backed up on, i can not only restore the NAND if i solder the right part in, but i can also put my NAND on dolphin, then i can play dolphin online, like PMEX Remix or MKWii Riibalanced