So that your device is protected once morest the security gaps, you should install the offered updates promptly. The installation is usually done over-the-air, i.e. without the smartphone having to be connected to a computer. A corresponding note informs users regarding the availability of security updates. Alternatively, it is possible in the system settings to manually check whether updates are available.
Please also note that updates are often deployed in several waves and are made available at different speeds from country to country – it is therefore possible that the update will only be made available to you at a later date. If possible, you should also download the update in the WLAN to save data volume, since the updates usually cover several hundred MB.