Thanks for the hint, but this is not my 2DS and I want to spend the minimum amount of time to get it working again and then be done with it.Anyway OP, if you're gonna do the hardmod thing, the time is now. 10.5 is still the latest firmware and I hear 2DS systems are easier to hardmod than say, regular-sized O3DS systems. You can downgrade to 10.3, then back to 9.2, install some dank Menuhax and autoboot your favorite CFW.
I'm probably going to try the hardmod on Sunday. Do you think a regular microSD adapter and SD card reader will be fine?