Heidikins
Lurker
I have a umx u683cl phone by assurance wireless. (Obama phone) when turning on the phone before the lock screen is an ad. It takes up the entire screen. You have to go to the bottom of the ad and press and hold to get passed it. Sometimes I get passed it then go to lock screen and then it's there again. It also usually takes me to chrome as if I clicked on the ad. This was on my phone right in the begging of activating my phone. It's not from an app. I also had a older model Obama phone that did the same thing, but it stopped showing it anymore. I can't remember what was done to accomplish that. I even changed the lockscreen wallpaper and that didn't do anything either.