Not guaranteed as it is a case by case assessment but a temporary fix with a strike rate of 4 out of 5 edge screens I have come across is to immediately switch of ALL EDGE PANEL LIGHTING AND PANELS. This will also help reduce the stress on a damaged device. Finally, switch off the auto brightness feature and keep the brightness level down to a usable level. Again this is not guaranteed to work but I have had success with this approach as a temporary measure.