LG V20 User Manual

Hi Steven. Try to turn on mobile data for a few seconds then try downloading the text pictures.

I think what you're pertaining to is a screen burn in. It usually goes away.

Hi Larry. AFAIK, you can't use LG V20 from AT&T but the one from Sprint should work. Visit Boost Mobile Bring Your Phone page to check if you can use your phone with them.

Hi Amie. If the phone is bought from Sprint, you should be able to use it with Boost Mobile.