https://blog.wongcw.com/2020/09/22/ubuntu-touch-ota-13%e7%99%bc%e5%b8%83%ef%bc%9a%e6%9b%b4%e5%a4%9a%e6%89%8b%e6%a9%9f%e6%94%af%e6%8c%81%e5%84%aa%e5%8c%96ui/