how do i factory reset
It all depends on which phone you have. If you have the LG phones, you tap on menu and then on Settings>Storage. Scroll down to Personal data and you will see Factory Reset. If you own a Motorola, you want to tap on Settings>Privacy and you will see Factory Data Reset. You know that all the information stored on your phone will be erased and you have to start all over. You have to get a Google account (unless you already have one), set up all your Email accounts, etc. Everything on your SD card should; however, not be effected. Unless you absolutely have to do a factory reset, I advise against it, especially if you downloaded a lot of apps from the store.