When you power up your device by using the volume down + power button, then when it brings up the boot screen you hold volume up + power button....everybody still with me?....it brings up options to do a factory reset, apply sd card, etc. etc. Is this the same factory reset that is located in the menu> settings> security (I think that's correct) ? I tried it yesterday and seems my phone runs better. Sense seems to be responding better and I haven't had any force closes. This may be in my head but maybe it works to fix some pesky problems. I am on leak v3.