Auto focus/zoom / High Resolution does not work

[maerni]

We want to use the ngx-scanner and installed the following versions (we use Angular 13):

@zxing/browser 0.1.3
@zxing/library 0.20.0
@zxing/ngx-scanner 3.5.0

Now we have the problem, that it does not work with small QR Codes (i.e. 3x3mm).

With normal or big QR Codes it works.

We think, the problems are that the auto focus/zoom does not work.

How we can activate auto focus/zoom and a higher resolution?

Thanks very much.