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Android QR scanner does not detect QR code on some phones

Open gustavo-pin opened this issue 1 year ago • 8 comments

Device: Samsung Galaxy M52 5G Download: PlayStore Android Version: 13

gustavo-pin avatar Feb 10 '24 14:02 gustavo-pin

Please provide more details. In what way does it not work? What are you doing exactly, and what happens? Did older versions of Electrum also exhibit the problem?

SomberNight avatar Feb 12 '24 11:02 SomberNight

Please provide more details. In what way does it not work? What are you doing exactly, and what happens? Did older versions of Electrum also exhibit the problem?

When I use the scan to make a payment or to import a public key it doesn't work. As soon as I point the camera at the QR code nothing happens.

https://github.com/spesmilo/electrum/assets/118580904/75485c9f-29f8-4604-a86e-764ef3c65bc7

(An exemple using a random address in https://mempool.space)

@SomberNight

gustavo-pin avatar Feb 19 '24 11:02 gustavo-pin

I've just tested scanning the QR code from your video with the built-in scanner using my phone and it scanned it correctly. Perhaps the issue is specific to some devices or depends on the quality of the camera.

SomberNight avatar Feb 21 '24 10:02 SomberNight

I saw a noticable delay (eventually it took) when holding the scanner exactly level. When tilting a bit the detection was much faster.

accumulator avatar Feb 21 '24 11:02 accumulator