What should I do if my phone can’t read the QR code for registration?

Firstly, you need to give the Stemoscope App access to your phone camemra to read the QR code. Seconly, you may try different light environment and shoot angles. Thirdly, you may screw down the diaphram cover and put the diaphram on a white background such as a white paper to shoot the QR code.

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