How to upgrade the open AT os

Hello every body,

i want to put the last version of Open At OS ( vs : 6.20 ) in my QT2787 .

There is someone who can help me please.

Thank you for your help .

it is easy or doable depending on the os that is currently loaded.
there are quite a few topics on this already, did you search already?

it’s ok , i downloaded my firmware .
Thank you !