I don't know... I tried to find a method, but i didn't find one. I don't have android 11 yetDoes anybody know how to change the software channel?
EDIT: This is another way:
The normal fastboot way.
My Edge is the Tim-Italy variant, was with software version QPDS30.114-80-4.
Before flash I compared firmware zips "Tim-Italy" and "Retail Brazil UMTS_LTE", they have the same md5 hash value.
So I just did unzip and flash "Retail Brazil UMTS_LTE" RPD31.Q4U-39-26-4, everything is fine.