There are several reasons which can lead to the failure of automatic Android update preferences. The common reason is insufficient storage. connectivity problems, or corruption of cache by malware, etc. The resolution of these problems can be done by following the below-mentioned steps:
i) Check whether your device is connected to the internet or not. If it is not connected, then you have to connect your device to stable internet.
ii) Clear the cache by selecting certain apps on the Google Play Store, and then some of the issues will be resolved.
iii) Afterwards, check storage; is there sufficient storage available or not?
iv) To resolve minor glitches, you need to restart your phone
If ever the error persists, then you need to get help from customer care.