Catalina to BigSur upgrade - firmware issue

[bergui45]

wifi is OK with itlw + Heliport!
The only issue :i cannot open the Heliport app but it works flawlessly in the backyard...
Today there is an update of Big Sur 11.1, but i have just tried 2 times to install it without success?
Are any updates also needed in Opencore?

 

[bergui45]

YES it works great!

But it's not possible to upgrade from BS 11.01 to 11.1...
I have to make a new USB stick and then installation worked...
Time Machine needs several hours to restore everything...