Samsung J7 Display light problem repair jumper ways

Repair jumper ways for the, Samsung J7 display lights jumper with image diagram. User also learns the how to? solution If display lights are not working. Dark display, damaged display connector issue. Today! I am going to share this with you. How to fix the missing display light error in Samsung J7.

As you know! The cell phone display has an LED (Light-emitting diode) system for the brighter screen. With the built-in display lights, user user can see mobile screen data in the dark, night mode. If the display back-lights have any issue. User can face the one or more following issues (Errors) problems with their cell phone display.

• There is no light at the display. Mobile phone power on but nothing on display.
• All other functions are working, but the LED's are going faulted and nothing on display.
• Front panel, display connector is damaged, missing or not working. Some thing is missing.
• There is not current at the display connector light pins. 

Direct jumper requirement of Samsung J7 display lights.

To resolve, There is dark display of Samsung J7 cell phone. You need to unplug the battery first and approach its motherboard after UN-boxing from its inner casing. This cell phone (Samsung J-7) needs extra care during UN-boxing from its body. You need to follow the image color lines for the direct jumper ways at missing display connector light pinpoints. Things: Cell phone The image diagram of Samsung Galaxy J7 display connector light jumper way.

As the above diagram here. The BLUE line is used as the positive pinpoint jumper from display connector to display light controller chip. The green is used as the bios and yellow is the negative pin jumper. Make sour! the Display lights are working very well. During making the direct jumper with jumper wire. Conform before any job. That pin is not showing on the testing meter and you have a good experience with micro places jumpers.

How To Repairing Dark Display?

First, you need to select Conform from the mobile settings menu. If the display lights setting is active and there is no issue with disabled lights function. You need to repair this issue (Dark display) display light are not working from the hardware repair or troubleshooting. 

1. Clean both connector at motherboard and display strip links pinpoints.
2. After cleaning, try to test your issue by power on your cell phone.
3. The problem comes from missing light pinpoints, commonly. 
4. Try to make direct same as image diagram above here.
5. If the light current is showing at the connector pinpoints. 
6. Test and replace the display lights LED's.
7. If there is no current at the connector pins. 
8. Try to clean or test the light controller chip.
9. For the faulted display lights from front panel you need to fix it by repairing the lights section.

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