Likebook Mars Update Error

Hi All

I recently purchased Likebook Mars T80D. It is currently on firmware 1.04-2018111919. When i try to update firmware via wifi i get an error "Connection timed out, config the network is available" Battery is at 100% and conected to charger. I have tried factory reset, switching device on and off but nothing has worked. Any help/advise will be much appreciated.

many thanks