sudo cp /etc/apt/sources.list /etc/apt/sources.list.bak
sudo nano /etc/apt/sources.list
将原文件内容替换成如下：
[arch=armhf]
deb [arch=arm64] http://mirrors.tuna.tsinghua.edu.cn/raspbian/raspbian/ bullseye main non-free contrib rpi
deb-src http://mirrors.tuna.tsinghua.edu.cn/raspbian/raspbian/ bullseye main non-free contrib rpi

sudo cp /etc/apt/sources.list.d/raspi.list /etc/apt/sources.list.d/raspi.list.bak
sudo nano /etc/apt/sources.list.d/raspi.list
将原文件内容替换成如下：

deb http://mirrors.tuna.tsinghua.edu.cn/raspberrypi/ bullseye main
更新源

sudo apt-get update

gpg --keyserver keyserver.ubuntu.com --recv-keys 9165938D90FDDD2E
gpg --export --armor 9165938D90FDDD2E| sudo apt-key add -