HT-M2808 no helium onboarding

I purchased two new HT-m2808. I connected them to the lan network and attempted onboarding. Without success. The dashboard shows firmware 1.1.5 and try latest 1.4.9. They can’t seem to update the firmware. If I try with the helium onboard app an error appears. Can you give me a hand?

Hi I also have the same problem, can anyone tell us the procedure to update the firmware. Thank you

Rm - rf update-M02 *&&wget &&Chmod+x update-M02. sh&&/ Update-M02-sh

This is an upgraded webpage display