I purchased a used galaxy s7 front swappa. I went to the Verizon store today to activate, everything went good. But while I was waiting I was comparing my phone to one of their display galaxies and I noticed that my camera app screen looked different. I'm concerned that I purchased a phone with refurbished or alternate software? Or maybe it's simply because it is unlocked? Someone please explain why there is a difference. My app does not show the same settings icon on the top bar, I have to manually go into the settings to select timer or photo size. And the bottom bar only shoes the video button, the capture button, and gallery preview.