1, Huawei Nova7 upgrade time in the third quarter of this year, it is temporarily impossible to upgrade the HarmonyOS system. At that time, you will receive a push from Huawei, and click Push directly to upgrade.

2. There is another way: when the mobile phone can be upgraded, look for the "My Huawei" APP in the mobile phone. Users who have not found or uninstalled can come back in Huawei application market. After opening the APP, you will find an upgrade button, click; Click taste now, and you'd better back up the information before upgrading. After that, the system will download a public beta description file for you, and then set up and find the system and update it; Then find the software update and follow the instructions in this step.