Systemd timer: better investigation/ battery saving with Xperia 10 III (4.5.0.19)

General
3

In my first steps → “display down” with Situations the scripts worked (bash situations-sleep).

Here with systemd, I get the following outputs:

[root@Xperia10III system]# phone-sleep 
Error org.freedesktop.DBus.Error.ServiceUnknown: The name pcom.jolla.apkd.control was not provided by any .service files

[root@Xperia10III system]# systemctl status phone-sleep.timer 
● phone-sleep.timer - phone-sleep timer
   Loaded: loaded (/etc/systemd/system/phone-sleep.timer; enabled; vendor preset: enabled)
   Active: inactive (dead)
  Trigger: n/a