Workaround: plasma-nm-applet Icon Does not Show GSM Signal Level

Instead of showing signal level, it shows mobile phone icon. This workaround work for me, at least: “restart plasma-desktop” (without logging-out KDE), here is the command

kquitapp plasma-desktop
kstart plasma-desktop > /dev/null 2>&1

We can wrap it to shell script called restart-plasma like:

root@pcxthinkslack:/home/bowo# cat /usr/local/bin/restart-plasma
#!/bin/bash
kquitapp plasma-desktop > /dev/null 2>&1
kstart plasma-desktop > /dev/null 2>&1

Result Before:

After: