Not done this myself but it could work.
Good luck & let us know how you get on
Thanks for your help. Just back from a break.
No luck so far but going to try again with son in law with me to check I am doing it right
Update.
Eureka, I have done a factory reset and MXQ box is back in this world. Resuscitated.
Thanks for that link Angels.
Managed it after many attempts on my own.
Have had to follow Sportsmania.rocks website page on how to install video ad-ones which I thought I had done ok. The Sportsmania picture is there now on listings but cannot get it to show page where I can log in with user name and password.
Stuck so will try again tomorrow.