I am on my 4th Samsung 10.1" SM-T580. All have had the same problem of going black. Sometimes when I have it in the case but it has also happened out of the case. I live in Canada but purchased it at Sams Club on a trip back through the US. I returned the first 3 but now I'd like a fix. When it goes black I can tip it in several ways it eventually comes back on. This is a pain. The customer support says they've not heard of this problem. My husband has a Samsung SM-T350 and has never had this problem. I brought it to my local Samsung support store but they are unable to send it for repair because it is a US modle! I'd like a permanant fix that doesn't include taking it apart.