Black shadow in the top left corner of iPhone 6 - GSM-Forum

muhamalak · 01-24-2018, 11:41

I've replaced the battery in my wife's phone 2 weeks ago. Once replaced there was nothing wrong with the screen and it was now good as new. I looked at her phone yesterday and see black dim light in the corner. What is it and how to repair it?

GSMBORODA · 01-25-2018, 09:24

chek
1. new lcd
2.fl2024
3.fl2025
4.fl2026

GSMBORODA · 01-25-2018, 09:24

chek
1. new lcd
2.fl2024
3.fl2025
4.fl2026

eselekt · 01-29-2018, 10:30

You need to make a microsoldering work here bro:

brandermer · 01-30-2018, 11:23

Here is how I resolved it:

nicolaskeys · 05-23-2018, 09:33

What should I try to replace first the diode or u2 chip?

minho · 05-23-2018, 17:02

Quote:

Originally Posted by nicolaskeys

What should I try to replace first the diode or u2 chip?

For backlight logic board issues, you always start with the backlight filter. Check for continuity and proper voltage. After that, you move upstream along the circuit and test the diode. If the diode is good, check the coil for damage and then finally remove/replace the IC. The backlight IC is not U2, it is U1502.

01-24-2018, 11:41	#1 (permalink)
muhamalak Freak Poster Join Date: Oct 2016 Posts: 187 Member: 2634426 Status: Offline Thanks Meter: 15	Black shadow in the top left corner of iPhone 6 I've replaced the battery in my wife's phone 2 weeks ago. Once replaced there was nothing wrong with the screen and it was now good as new. I looked at her phone yesterday and see black dim light in the corner. What is it and how to repair it?

01-25-2018, 09:24	#2 (permalink)
GSMBORODA Insane Poster Join Date: Feb 2006 Location: ISRAEL Posts: 66 Member: 228382 Status: Offline Thanks Meter: 12	chek 1. new lcd 2.fl2024 3.fl2025 4.fl2026

01-25-2018, 09:24	#3 (permalink)
GSMBORODA Insane Poster Join Date: Feb 2006 Location: ISRAEL Posts: 66 Member: 228382 Status: Offline Thanks Meter: 12	chek 1. new lcd 2.fl2024 3.fl2025 4.fl2026

01-29-2018, 10:30	#4 (permalink)
eselekt No Life Poster Join Date: Sep 2016 Posts: 506 Member: 2621291 Status: Offline Thanks Meter: 124	You need to make a microsoldering work here bro:

01-30-2018, 11:23	#5 (permalink)
brandermer Major Poster Join Date: Dec 2017 Posts: 44 Member: 2784482 Status: Offline Thanks Meter: 0	Here is how I resolved it:

05-23-2018, 09:33	#6 (permalink)
nicolaskeys Major Poster Join Date: Nov 2017 Posts: 42 Member: 2778933 Status: Offline Thanks Meter: 3	What should I try to replace first the diode or u2 chip?