LS-4P update to 0.15.0 bricked device?

I've performed a manual upgrade to WLED 0.15.0 on my LS-4P via the web interface and it seems to have gotten bricked.

There is no WLED access point, and it is not connecting to the configured wifi, popping the cover off and powering the device on and off also doesn't show any signs of life.

Is 0.15.0 not supported?

Is there a way to reset / recover the bricked device?