From time to time, Huawei distributes firmware updates for its smartphones, including the Huawei P20, which then have new functions, bug fixes, etc. on board.
Also completely new Android versions are distributed. Usually such updates are offered automatically after some time in the status bar.
But you can also become active yourself and search for it manually. How this works in Android on the Huawei P20 is explained below:
Manually check for new Android firmware for the Huawei P20
We recommend that you make a backup of your data and charge the device to 100% battery charge before each update. Then start as follows:
1. Start from the start screen and open the system settings of Android
2. Then go to "System Update"
3. Your device will now automatically check for firmware updates via a W-Lan or mobile data connection.
If a newer version is available than installed, it will be offered for download 5 When the download is complete, press the "Update" button.
The Huawei P20 is now being updated. This process may take a while depending on the update. The smartphone then restarts and the new firmware is active.