How do i scan QR codes on my 3ds?

I saw pictures with a little icon on the bottom left of the camera thing, but i just don't have that. it's just blank.

The one annotated in red doesn't exist for me. How do I get it?

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1 Answer

This feature was added system software version 3.0.0-5. If you want to use that feature you must use that version or higher. [1]

Only the mini version of the camera app - acessed by pressing L or R on the home menu - has the QR code feature.

(sources: me, 3dbrew, Dustin Martin's Arqade Answer)

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