Android free 30 day ended and...

Using 30 day trial I made several apps to pitch for funding. Got the money and purchased Android with free unity. In my demo apps I used the splash screen and now I cannot use these apps because the splash screen is locked in and I cannot remove it. I want to continue devolpment of these projects but when I build and run them it just crashes. The reason I know it is the splash screen is I made new projects and copied all my information over and boom works, but all variables, materials, and textures are unassigned. I have many levels and it would be extremely time consuming to fix this. Is there a way to remove my splash screens after unity has locked me out of the splash screen section. Sorry typed this from my phone if there are any spelling issues auto type sucks. Thank you in advance.

ok so here is what I found if anyone finds this hope it helps. I rebuilt my project and copied everything into it and ruined my project so i setup a blank project and started deleting library files until i deleted the playersettings.asset and found it takes away the splash and all of the settings you’ve setup and allows you to start from scratch with your project fully intact except for name,splash,icon,ect…