How to burn OS image to new version on M10 ?

Hello, I've got a M10 UNIHIKER on which I tried many times to use the Tillu project (https://community.dfrobot.com/makelog-314968.html) but when I test the main program I've got some errors so I thought it was because the OS was too old. So I follow the burning guide to update to newer image version (0.4.0). But when I launched the burner.sh program, the progress stay to 0% during a long time (hours and hours). 

Could you know how I could resolve this problem and how I could restart my M10 unihiker which is now blocked with nothing on it ?

Thanks for your help.