Huawei announces all the phones getting HarmonyOS by next year - Neowin
Huawei P20 devices in China receiving new HarmonyOS 2.0.0.215 features - Huawei Central
HarmonyOS 2 beta testing starts for Huawei P20 and P20 Pro - RPRNA
HarmonyOS: Hands-on with Huawei's rival to Android - BBC News
HarmonyOS 2 testing for Huawei P20 and Mate 10 devices will start this month - Huawei Central
Harmony OS: Everything you need to know about Huawei's Android rival
Huawei P20, Mate 10 and Nova 4 receiving HarmonyOS beta - YouTube
Huawei's Harmony OS Download | Official Huawei Operating System Download on ANY smartphone for Free! ( HongMeng OS / Harmony OS) — Download Android, iOS, Mac and PC Games
Oldies Huawei P20 and Huawei P20 Pro received a beta version of EMUI 12 | gagadget.com