Samsung Galaxy Note 3's menu and back button won't light up-a glitch or not?

QuestionsForSamsung

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Aug 19, 2017
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My menu and back button don't light up when I touch them, but I think it's because of a glitch.

My menu button hasn't lightened up since half a year ago, but I left it alone like that. This morning, both of my buttons didn't light up and it corcerned me.

I tried checking the settings, but it was already on, I tried to press "always off" then "always on" to see if it worked, but it didn't light up. I even checked the power saving setting, but it was already off, so it can't be the issue. I also tried restarting but it didn't work either.

Are there any other ways to solve this problem? Or is it just a glitch in my phone?