Learn to repair iPhone 6 no backlight problem

Something wrong on your iPhone 6? The iPhone 6 no backlight, which cause iPhone display screen can't display normally. Good news , you can learn to repair iPhone 6 no backlight problem here!

First use DC power supply to measure the boot current on iPhone, the boot current is normal. Tilt the iPhone screen, we can see the Apple LOGO, which means the iPhone 6 is not no display but without the backlight.

Remove the iPhone motherboard and measure the resistance of display socket backlight circuit and backlight power supply by Fluke 15B+ Digital Multimeter, we found the data of backlight power supply only has 97, but the normal data is more than 400.

Take off the iPhone CPU shield to check the components near the backlight. After check it under the VGA Camera 7-45X Trinocular Stereo Microscope, it was found that the backlight diode had been burnt, and the big inductance also is cracked and discolored. In this case, the elements on the back light path should all be damaged, we need to remove all components and replace the new.

After replacement, turn on iPhone to test, now the iPhone screen displays normally.

The iPhone 6 no backlight problem has been repaired!