1. In some cases, a white screen will appear when the Steam Deck boots up. A temporary work around would be to force shut down the Steam Deck by long-pressing the power button and powering on again.
2. Following a BIOS flash, you may notice minor light bleed around the corners in some cases. This issue is currently under investigation. The light bleed would then disappear within 10-20 minutes, and it typically does not reoccur.