After the upgrade to 7.20 was shown, the watch installed the update (or seemed to have it installed), then it rebooted. The blue triangle shows, and for a short moment, the gear icon shows, like it is finalising the upgrade, but it returns to the blue triangle. This is going on for a while.
When trying to power it off (15 sec press of the light) and powering it on again, it stays the same. Is there a way out of this boot loop?