You can configure your Android smartphones to automatically download system updates and UI updates (HTC Sense, Samsung Touchwiz, Huawei Emotion UI) over Wi-Fi.
Android - How to configure the auto-update settings
System updates, UI and Software suites
To configure the auto updates, go to Settings > About Phone > System Update. Then, tap on the Menu key > Settings.
Next, select Auto-download over Wi-Fi:
Auto update Android apps
To configure the auto-update settings of the apps installed on your Android smartphone or tablet, open the Google Play app and go to Menu > Settings.:
In the General section, tap on Auto-update apps.
3 options are available:
Do not auto-update apps.
Auto-update apps at any time (Data charges may apply).
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