E-Ink "bruise" looking similar to yours can be caused by magnets but it's not permanent damage, goes away with refresh.
It's odd to not have the display at least refresh on poweron/reset; by all means try replacing the SD card.
As for photos you shot yourself, you should just Attach them to your post.
Last edited by frostschutz; 02-04-2016 at 06:27 PM.
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