ok I have figured out this adware! on the virgin mobile "obama phones 2018" ANS UL40 1 step factory reset 2 do not log into google account just yet. 3 once able to access screen turn off data. app bar on top with the two flashing arrows "turn off". 4 go into settings these apps you don't need. force stop, clear data, disable. first app you want to disable that causes most pop ups is: red app called "Sound Recorder" major adware!! 2nd one to disable is v8 featured apps amazon shopping if not used... "certain google apps can be disabled if not needed or used to save data I also disable weather app to save data" top right button for app settings: shows "show system" I also disabled ad_surface app is not needed. then find wifi log into google account and download these norton Clean app Malwarebytes app AVG anti virus app. really any free top rated "read reviews" after doing all this pop-ups have decreased!! last and final Pop-up aliexpress.com pop up! so annoying I have discovered this is apart of google play. only way to get ride of it. is to hit install when add pops up. once it is installed. delete the app. after doing all this! you should have no more ad pop ups. also google web browser kinda sucks... so I disable that too and down loaded firefox incognito. but thats up to you. I am add free and protected. Oh one more thing call customer care on your phone contacts. and tell them to take you off the sales call list. you don't want your number solicited.