In addition to automatically downloading updates, we can specify whether the Huawei smartphone should automatically install downloaded software updates overnight while the device is not in use.

Android 10 (EMUI 10.0)
Step 1:  Open the  Settings
Step 2:  Tap on  System & updates
Step 3:  Tap on  Software update
Step 4:  Open the  Settings
Step 5:  Enable or disable  Update overnight
  1. Open the Settings
  2. Tap on System & updates
  3. Tap on Software update
  4. Open the Settings
  5. Enable or disable Update overnight

Huawei Instructions