Hamilton Beach cordless kettle, odd screws

Our HB 40996? Cordless kettle stopped heating. I watched YouTube videos and figured it’s likely it got inadvertently boiled dry and blew its thermal fuse. But when I went to unscrew the connector on the pot’s bottom I ran into 3-point screw heads. Even my iFixit kit doesn’t have such a driver.

Beyond that, there are no other fasteners that seem to be holding the bottom of the pot to its body, so even if I could unscrew the odd screws, I’m not sure how I’d get to the heating element for testing, or the thermal fuse to replace it.

Any insight?