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1

First off you need to use a QR Code Reader. There is no way around that. You can't teach some to read QR's, but you can show them the proper way of using such an app. Most of the readers have built in dummy instructions - such as center the code in the picture, how far away to get a good reading and other useful tidbits. Besides if they can take a picture ...


2

Yes, just download an app and run it. You can't visually look at a QR code and decode it with your brain.



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