Followup on Colorsoft Software suspicions

Yesterday I'd posted a few pictures of my newly arrived Colorsoft where I'd noticed that until the initial software update, the screen wasn't unevenly yellow.

On a whim today, I performed a factory reset on the device. While running through the set up anew, I can see that the yellow strip is distinctly visible.

Since the factory reset doesn't revert the software version to what the device shipped with, I can only conclude that the software update has messed it up.

Link to my original post with the set up pictures: https://www.reddit.com/r/kindle/comments/1ghy0li/theory_about_colorsoft_lighting_issues/

It would be really helpful if others who are getting their devices in the coming days would take photos during the initial set up to verify this issue. The belief that it's a hardware issue has gained too much traction and at the very least it would be helpful for the community to gather some unbiased data before ruining our own kindle experiences.