openelec to libreelec migration failed

  • hi all

    i have been trying to update my openelec 6.03 MXQ s805 box to libreelec but it says installation failed
    i used this file LibreELEC-S805.MXQ.arm-7.0.2.5.zip

    it errors
    E:=footer is wrong
    E: signature verification failed
    installation aborted

    i have tried to follow the youtube video but when i go to the downloads page
    the manual update file is not there like in the video

    need some help please
    thx bigdawg9950