User blog:Miiverse Beginners' Guide/How to Set Up Parental Controls on a Nintendo 3DS

Is your child spending too much time on Miiverse? Follow these simple steps to restrict features of Miiverse. Notes:
 * 1) Go to System Settings.
 * 2) When it opens, tap "Parental Controls".
 * 3) Tap on the "Change" button.
 * 4) Enter your PIN, and tap "OK".
 * 5) Select "Set Restrictions".
 * 6) Scroll down until you find the button that says "Miiverse". Tap on it.
 * 7) If you are allowing Miiverse in its entirety, tap "Do Not Restrict". If you would like to restrict posting and commenting, tap "Restrict Posting". If you would like to restrict posting, commenting, as well as viewing, tap "Restrict Viewing or Posting".
 * 8) Select "OK".
 * 9) To confirm, tap "Done".
 * 10) Tap "OK".
 * 11) Tap "Back".
 * Before doing this, you must enable Parental Controls and create a four-digit PIN.
 * If you would like to disable Miiverse on a Wii U as well, please click here.