Specification updated. <https://wiki.ubuntu.com/Networking?action=diff&rev2=219&rev1=218> If the phone contains zero SIMs, "No SIM" should be displayed only once; and if none of them are connected to a network, "No service" only once. It will still be possible for "SIM locked" or "SIM error" to show up twice, but that will be incredibly rare, and not worth making those states harder to understand for the case where they happen with only one SIM.
Specification updated. <https:/ /wiki.ubuntu. com/Networking? action= diff&rev2= 219&rev1= 218> If the phone contains zero SIMs, "No SIM" should be displayed only once; and if none of them are connected to a network, "No service" only once. It will still be possible for "SIM locked" or "SIM error" to show up twice, but that will be incredibly rare, and not worth making those states harder to understand for the case where they happen with only one SIM.