Hisense television. Hello My daughters tv is locked and I can not get it to unlock the screen does

Question

Hello My daughters tv is locked and I can not get it to unlock the screen does not let me do anything..... I do not have the original remote only the one for satellite. It is programmed for the tv...Tried to unplug it and still nothing. Help...Thanksmy tv is locked and it has been turned off for a week. what do i do