I got 2 accident smartphones with a crack in the screen that made the screen unresponsive thus rendered them useless in what they are intended to do ("bricked"). So instead of throwing them away, I plugged a mouse in with a micro usb to standard usb adapter and set them up to BOINC 24/7 and placed them on a stone window sill, the touchscreen disperses heat nicely in the stone, so the battery never overheats and throttling is out of the question.