I reported my main problem with the flickering screen (that does appear on the home screen, lock screen, camera app, HP Smart app etc., but on certain screens it does not or only for parts) that renders my FP3 often unusable, because touch input also does not work then, like the last ten(!) hours. Adaptive brightness is off here, so will this announced fix (for the brightness dropping to minimum, that I also get) cure my main problem? If not, I will need to send in the phone as defective. (Sadly, my FP1 had one floor crash too many and needs to be replaced now.)
Sometimes, putting the FP3 on a solid surface seems to stop the flickering and the touch block, so movement sensors might play a role, or there is an actual hardware malfunction on my phone. Toggling Smartlock, Dark Design, Autorotation etc. does not help. Rebooting by removal of the battery has removed the issue a minute ago (forcing a reboot with the power button was inhibited, too).