9808 can hardly scan barcodes on the screen of a mobilephone

DS6707SR can scan the same 2D barcode on the screen of a Q9 cell phone, but DS9808 fails to do that. That 9808 can scan that barcode printed on paper smoothly.
DS9808's performance should be better than 6707, but why it cannot scan the same barcode on the mobile phone?
Should I change some settings?
Thank you! Junhua
Anonymous (not verified)
Junhua, I ran into the same

Junhua,

I ran into the same problem when trying to scan barcodes from the Product Reference Guide on my laptop screen.  When I turned off illumination, it worked.  You're probably having the same problem with the mobile phone display.  There must be too much reflection coming back when illumination is turned on.

Ken
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