The glass is not cracked and hasn’t been dropped. It has done this before and then started working again. But this is the longest it’s done this, this time. But earlier this morning I got !#^&@@ and while it was in its case I dropped it on the floor from about 3’ (flat) and now its working fine. I don’t recommend doing this but was going to replace it anyways. So I guess we can scratch our heads on this one. Any other ideas would be appreciated. I do have the tools to repair it .