Screen flashes green on Galaxy A57 5G
If your Galaxy A57 5G screen briefly flashes green when you turn it on, updating your device to the latest software version can quickly resolve the issue.
Navigate to and open Settings, and then search for and select Always On Display. Tap Always On Display again, and then tap the switch at the top of the screen to turn it on.
The AOD option may be grayed out if you have Power saving mode enabled.
Choose the Display mode that best suits your needs. Navigate to and open Settings, and then search for and select Always On Display. Tap Always On Display again, and then tap When to show.
Select CONTINUE to visit HP's website.