Help welcome screen stuck

[Victor Menke]

Phone stuck on welcome screen 1day after rooting and installing SuperSU.When I installed Super SU,did not see a SU on kingoroot after rooting ,thought it didn't have one ,so installed super.Later that day was charging phone turned off so charge quicker.Turned it on stayed on welcome screen ever since.

 

[Bg260]

Hi, I would like to try to help, but I have no idea what device it is.