iPhone 4S Light Problem Solution Backlight Jumper Ways Smartphone Repairing

iPhone 4S Light Problem Solution Backlight Jumper Ways Smartphone Repairing

Here’s the iPhone 4s hardware solution for Blue, White , Blank  Display lighting Problem. This problem may result to show a dark or black screen display for there is no illumination backlight LED on the back of the LCD screen.

Problem:- 
iPhone 4s White Display Solution
iPhone 4s Blank Display Problem
iPhone 4s Lcd Display Full Track Ways
iPhone 4s Display Light Ways
Blue ,Dark ,Blank Display

Display light / Backlight not working.

Hardware Solution

Check iPhone 4S light is not working , 

light is dim light is off or display is blank. 

Check Display Connector Pin No. 6 & Pin No.8 ( Cold Testing ). If resistance not found than trace supply line.

iPhone Display Connector Track Way 

To fix the dark screen display problem, you may first try to replace or install a new Display screen module, to easily confirm if the LCD’s backlight LED’s were still working or already damaged.

You can also check the LED’s using the multimeter if you can manage without damaging the LCD flex connector.

iphone 4s Back Light ic And Coil

If the newly installed LCD still shows the same problem and the LED light doesn’t light up, refer to the solution below and locate the highlighted components on the PCB board.

iPhone 4s LCD Display Problem Trace also each connection line paths were it is being connected to a lighting section.

If any track line is missing just make a jumper.


Note: Please note that even though every solution posted on our website is tested by one or more members of our team before posting, but still we do not take any responsibility for any damage it may cause to your cell phones. Use these repairing solutions at your own risk. Thank You.