More like three, but in the beginning it didn't seem like such a big deal. I'd be doing just about anything... scrolling FB, reading an email, browsing a website and my screen would turn black, not timeout but just go black. I would then hit the back button and normally it would turn back to whatever screen I'd been looking at. Sort of like when you go to a link on FB and the link doesn't work so it reverts back to the main page. It was annoying, and I knew it was a bug of some kind but one I decided to live with out of laziness, more than anything.
Then after the last update the secondary issue arose, which in my mind was an offshoot of the old issue but on a much grander scale. Instead of turning black and being able to resume, it just started going black and more or less turning itself off. Or it seems that way. The screen generally goes black and then when it restarts I'm at the main home screen just as I would be on a restart. (It doesn't always go black however. Sometimes it merely reverts to the homescreen, normally after it locks up for several seconds in whatever app or page I was on and then shows where it is restarting everything it normally does after powering up.) This happens sometimes up to 10 times a day at it's worst.
The third thing it does which I feel may be related is it started reporting it wasn't reading my SD card or was reporting that it simply wasn't there at all. I normally noticed this when I'd look at an app that was on it only to discover I wasn't able to open the app as the SD card acted as though it wasn't installed. Generally a restart fixed this trouble but it keeps happening.
Then after the last update the secondary issue arose, which in my mind was an offshoot of the old issue but on a much grander scale. Instead of turning black and being able to resume, it just started going black and more or less turning itself off. Or it seems that way. The screen generally goes black and then when it restarts I'm at the main home screen just as I would be on a restart. (It doesn't always go black however. Sometimes it merely reverts to the homescreen, normally after it locks up for several seconds in whatever app or page I was on and then shows where it is restarting everything it normally does after powering up.) This happens sometimes up to 10 times a day at it's worst.
The third thing it does which I feel may be related is it started reporting it wasn't reading my SD card or was reporting that it simply wasn't there at all. I normally noticed this when I'd look at an app that was on it only to discover I wasn't able to open the app as the SD card acted as though it wasn't installed. Generally a restart fixed this trouble but it keeps happening.