Permission denied from connmanctl shows when wifi is off too from what I noticed (not even sure if root is needed), let me try rebooting with sim out (btw the shortcut button is still greyed out, but it should be able to force internet-less hotspot from connmanctl)
Edit: devel-su is needed, and it worked with fresh boot with sim removed
Maybe dhcp isn’t working without sim? Tablet connected to the Xperia 10 III hotspot just fine, so maybe you need to hardcode the IP 172.2x…2 in jupii? Or maybe kde/sailfish connect will work, never used jupii
Edit2: another option would be to modify this file I think:
available: simToggleAvailable
&& AccessPolicy.internetSharingEnabled
&& !wifiTethering.offlineMode
&& wifiTethering.roamingAllowed
&& wifiTethering.identifier.length > 0
the first two can probably go to make it always available no matter sim status??? Not sure
Edit3: nope, no sim card inserted message is triggered, some check further down the line is hit still, so maybe there is no quick way to make the shortcut working, the connmanctl way should work still
Edit4: yeah the toggle seems like a dead end, commenting out all checks so no msg appears still results in nothing, but connmanctl does seem to work, pinging from tablet connected to simless xiii’s ‘hotspot’: