If you purchased a Pioneer head unit during the covid years of 2020-2022 (DHT-160, DMH-1770NEX, AVH-X2800BS or others), you might find it is starting to fail with a white screen of death. The symptoms will start showing up when you start the vehicle and become more persistent as time goes on. You will get a bright white screen sometimes with vertical lines through it or other major defects including a lack of touch interactivity.
The underlying cause of this is due to poor internal connectors and solder joints along the mainboard or ribbon cable. In that sense it is comparable to the repair video I did to fix an LCD screen on an electric piano. But even better news, Pioneer has acknowledged that this is such a common problem that they have agreed to a courtesy repair of all head units that exhibit this problem regardless of warranty status. So it doesn't pay to disassemble and repair it yourself, you can send it in and have a fully repaired unit back to you within two weeks. Here's the complete process that I just went through: