Why my iPhone 6 Flashlight won't light? - Reason & Solution

Today, we are going to talk about iPhone 6 flashlight won't light problem. When we try to turn on the flashlight on the iPhone 6, it's failed. After tried some software methods, the problem is still there, now we are going to check iPhone hardware aspect, and give a solution.

Step 1:

Use screwdrivers to remove the screws next the iPhone lighting port, put iPhone 6 on the CPB screen separator for heating, turn the iPhone display screen down and connect it to the CPB screen separator. After a while, we can take out the iPhone 6, and then use LCD sucker to open the iPhone screen easily.

Carefully remove the iPhone display screen, disconnect the iPhone battery, and then remove the iPhone motherboard.

Step 2:

Put iPhone motherboard under the microscope to observe, it’s found that there is no iPhone flashlight IC, and the solder pad of the iPhone flashlight IC has lost several pins. There are 8 Pins were lost by counting the missing pins under a microscope.

Step 3:

Log in to the ZXW online account and check the iPhone 6 schematic and bitmap, and we can see that for those missed Pins are grounding line, the power supply of the LEDI light, the Pin of the flashlight auto boost Pin.

The iPhone flashlight IC was burned because the iPhone flashlight IC lifted boost Pin lost, the signal is in a suspended state, causing the iPhone flashlight IC to burn after power-on.

Step 4:

Attach the iPhone motherboard to the PCB holder fixture, put it under a microscope, apply some solder paste to the motherboard, and then use QUICK TS1200A hot air gun to solder the missed pins on the solder pad, and then use green UV oil to insulate and cure it. Now, install an iPhone flashlight IC to the motherboard.

Pic 3

Step 5:

Assemble the iPhone 6, press the power button, the iPhone 6 is turned on properly. Open the control center, and tap the flashlight icon, now the iPhone flashlight can be turned on successfully.

Continue to test other functions on the iPhone 6, all works well, the repair's ended!