After some research, i just find the CN updates ( can install over EU rom in my case, just have to select the update file manually ) with android 12 for the Red Magic 6 / 6 Pro on https://ui.nubia.cn/rom/detail/68 , just selected the last one, installed it without problem from V328, english / french supported after install
Hope it can help some of you !
Sorry for my bad english, i'm french
Hope it can help some of you !
Sorry for my bad english, i'm french