Samsung Galaxy J3 Luna Pro Troubleshooting Smartphone manufactured by Samsung in 17 Author wafaa (and 4 other contributors) StudentContributed Wiki An awesome team of students from our education program made this wiki 3Turn your J3 back on, and see if the problem Samsung SMJ0GU Display Ways Backlight Jumper Solution Lcd Light Not Working Problem Blank Screen Problem Display Light Repair Solution Backlight Ways Though the black screen problem on Samsung Galaxy J2 J0GU is not a common issue, but few owners of this phone reported that they were facing trouble with it2 Tap "Display" 3 Tap "Screen timeout" 4 Select your preferred time limit for the screen to stay on Keep the screen active while you are using it Click to Expand Samsung Galaxy smartphones contain a feature that uses the front camera to detect when to
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