Hi Uwe. I am interested in: From which provider is your sim card? Is their SIM toolkit on the SIM card? You can see this in 4.4.0.58 when there is a SIM card icon in the list of apps. Or until 4.3.0.15 tap on Apps in the settings and you see an SIM-Icon light Grayed out. See the Screenshot in Post SIM configuration app (Konfiguration) can't be deleted and won't stay in folder after reboot
Sorry for my bad English. Mit fruendlichen Grüßen Uwe