About 2 weeks ago I did the system update. I have had nothing but trouble since! My phone will just restart on it's own while sitting on the counter. It locks up and the only thing that works is to take the battery out for a minute and put it back in. Some days I have to do this multiple times and some days not at all. I won't be doing anything fancy, it just does it for no reason. I'm about ready to throw this phone away! But, I still have another year on my contract! MY husband has the same phone, he did the same upgrade, and he has had no trouble at all. Why does mine? I want it fixed! And, of course, it's just out of warranty!!!