When I first starting flashing the Ascend, I got boot loops all the time. Anytime I flashed anything that OC'd higher than 710 put me in boot loops and hangups. I could actually bust out of some of them and get it to work, but doing that at each startup got old, though easier as the build settled in. And I boot looped on the lazy builds a couple times. I must have gotten it broken in because things run pretty smooth for me these days, though I do super clean flashes. I even reformat my sdcard on a totally new build. My phone is VERY particular.