Huawei on Jan 3rd, 2020 rolled out the Huawei P Smart 2019 EMUI 10 (version 10.0.0.134) update in Europe. Now some users reported that the December security patch adding to the device with the software version from EMUI 10.0.0.132 to EMUI 10.0.0.157. The size of the update is 581MB.
This update improves system security using Android security patches. We request you to take all the backup before installing or downloading it on your device. Once your backup is done, install/download it via your phone setting, tap on Settings > System > Software update > Check for Updates > Download and install.
or download Huawei P Smart 2019 EMUI (EMUI 10.0.0.132 to EMUI 10.0.0.157) update via HiCare APP, tap on Me Section > Settings >Check for Updates.