I went through same issue--and after trying myself to "fix" it to no avail--I took it to the servicer--which after an hours or so--simply responded: This is "normal" because your Contacts are syncing with Google--the phone should go back to normal soon. I think--the next day it did. However--that was about two full days without contacts! That is not acceptable! Definitely poor programming and poor response to customer's complains. Still have no idea when real fix will be available....