While in Mii Plaza in the Flowertown game after greeting, tallying and returning to the shed, the 3DS zoomed in on the plant on the workbench and the directionals, circle pad and touchscreen input stopped working, except I could use the R and L to spin the plant. I pressed the home button and became stuck, so I powered off.
Upon powering on, no circle pad, directionals or touchscreen worked, but A B X Y buttons were, so I was able to reenter the mii plaza and the circle pad and directionals were working again within the software, but the touchscreen wasn't .
Back at the home screen, only the A B X Y buttons work.
Putting a cartridge in caused the focus to change, so the A button launched Super Mario 3D and the directionals and circle pad worked again, but the touchscreen input still didn't.
I will persue repair, of course, unless some one knows something else. I don't want to miss the street pass weekend, but it doesn't look good for me.
Thanks for your help.