When I first got the phones I went nuts with mine and yes it was bad, but the other phone did the same thing with nothing other then the stock os on it. As for the second phones................ nothing open and try to make a phone call......reboot

..........on the web and waiting for the webpage to load...........freeze and or reboot

...........trying to type a text message........freeze and or reboot

.....trying to get HOME and using navigator...................reboot......reboot.....reboot

. I removed the apps that I downloaded, and only do one thing at a time.