Released September 25, 2015. Model A1687/A1634. Repair of this device is similar to previous generations, requiring screwdrivers and prying tools. Available as GSM or CDMA / 16, 64, or 128 GB / Silver, Gold, Space Gray, or Rose Gold options.

309 Questions View all

Why is my backlights faulty?

Hi. I'm replacing my phones LCD To rule out backlight fuse damage.

With the OEM LCD, there is a black fade in the top left side of the screen. With a Chinese LCD, the black fade moves over to the right top and the originally affected area appears fine again.

This sounds like a faulty LCD To me but I just wanted another opinion.

Thanks in advanced

Answered! View the answer I have this problem too

Is this a good question?

Score 1
Add a comment
Black Friday
Broken doesn't stand a chance.

1 Answer

Chosen Solution

I've seen this effect before. Different screens have different areas of the backlight fading/dimming. This could just be due to how different backlight assemblies are wired internally (OEM versus Copy).

Ultimately, this is a backlight circuit issue, not a screen issue. The fact that two separate screens show backlight problems confirms that the root cause is on the logic board. This requires a micro-soldering repair and is not DIY.

Was this answer helpful?

Score 2
Add a comment

Add your answer

Will Shawcross will be eternally grateful.
View Statistics:

Past 24 Hours: 1

Past 7 Days: 2

Past 30 Days: 8

All Time: 34