There are certain settings that we are not able to get at on your device. If we had full control of your smartphone or tablet we would get up to all kinds of mischief; the pranks that come to mind get us chasing our tails with excitement. Unfortunately/fortunately (depending on how you want to look at it) things like your camera settings (autofocus, macro, panoramic etc) are not available for us to tweak. Sometimes adjustments to these settings can make all the difference when it comes to scanning barcodes with a mobile devices camera. Like good guide dogs we will always point you in the right direction but you will need to make some of these adjustments yourselves.
If you discover setting adjustments on your device that make scanning barcodes more efficient please chuck us a bone and let us know all about it!