Maybe I am in the wrong section but my friend recently got a new android phone, Samsung s10e, and wondering how to have a text alert stay on the screen or have a light on the phone like her previous Samsung phone please?
Always on display there is choice of 'Display Mode' you can choose "Tap to show" to save battery power. Just touch screen it will show the display. It is your choice.On Samsung's version of Pie, called One UI, notifications on the lockscreen stay minimized. You can change it to go back to the normal way of showing full notifications by going to "Settings -> Lock Screen -> Notifications (tap the word notifications) -> View Style = Detailed. Also turn off "hide content".
As others have mentioned, turn on Always On Display as well. Settings -> Lock Screen -> Always on display
There's no notification light on the 10 series of phones like previous samsung phones