What do these screen mean black background yellow or blue with date and time? Some times my phone gets stuck at this screen. I can take a screen shot but it is otherwise unresponsive. What does this screen mean. It's usually yellow or blue with the time.




I want to think if I can take a screen shoot, I can otherwise recover from them. But each time I get it I have to restart the phone. I got these with Lineage 14.1, and now I'm getting them with 15.1 too.
Believe it is the flip cover, due to faulty hall sensor. Disable in settings (after reboot) seems to be the answer. According to this post, the setting can be disabled by going


Settings
Connected Devices
Smart cover
Off