I tried the remove battery for 10 minutes 'trick', while no icon shuffle since then the OS tethering didn't work when I got home, had to revert to tethering app and it worked ok. Still, the mobile data connection switching itself on is a CRITICAL bug, Jolla are endangering their customers into having to pay huge amounts of money if they happen to need to travel abroad with it as main device. This should not have happened. Hopefully the hwkb OH will arrive soon to lift my spirits a bit, the long wait for fixes with the evident bugginess somewhat killed my fanboism