The 5.1.0-11U update has been released for the 3DS, which essentially does nothing other than fix the faulty update that was launched late last month. I had no issues myself, but a lot of people were reporting that their units either locked up or they couldn't get into the system menu to actually reapply the fixed update.
Get more destructoid: We're indie-run, blogging for the love of it, and our site will always be free. Optionally, you can support us and get: (1) Faster pages from our cloud server (3) Wide(r)screen (3) No big ads on Dtoid, Japanator, Tomopop, or Flixist (4) Auto contest entries, and (5) Dibs on betas & downloads. Try it out
Unsavory comments? Please report harassment, spam, and hate speech to our moderators, and flag the user (we will ban users dishing bad karma). Can't see comments? Apps like Avast or browser extensions can cause it. You can fix it by adding *.disqus.com to your whitelists.