Display backlight will not shut off!
LG 420g backlight settings
Back light will not go off ...so drains battery
I received a similar question about the display via email from someone else, and, in response, I tested various scenarios as listed below. Let me start by going over the main display when the phone is flipped open.
You can adjust the backlight for the main display by going to:
Menu -> Settings -> Display -> Backlight
where you can set the duration of the backlight from 5 seconds all the way up to two minutes. You can even turn the backlight "off" in which case it stays in dim mode only when the phone is flipped open.
You can also adjust the level of the main screen brightness if you want to try and save the battery even more. These timings apply to when the phone is flipped open.
When you close the flip phone, I checked (by keeping the phone open just enough to see the main screen) that the display turns off in about three seconds.
For the external display I checked various situations to see if it turned off.
I went ahead and set a wake-up alarm on my phone. After setting the alarm, the external display continued to work normally. It stayed bright for about 3 seconds, went dim for another two seconds before going completely dark.
I also created a calendar event with an alarm set to ring on the time of the start of the event. I closed the phone and again the external display worked normally as before - bright, dim and then off. I also waited to see what would happen after the alarm sounded at the time of the event. When the alarm sounded for the event, the external display also turned on and displayed the calendar icon. After the alarm ended (I think I pressed the
side buttons to turn it off), the screen went through the same bright, dim and then off cycle.
I also had both a daily alarm and well as a calendar event with an alarm set and again the external screen behaved normally.
This behavior is fixed and I looked all over the phone settings and couldn't find a place to configure the external screen settings.
So if either of your phone's displays does not shut off, it does seem like a defect and may be covered by the warranty in Tracfone's Terms and Conditions.
My only suggestion would be to contact Tracfone again and explain the problem to them.