Angewolf

I was cleaning the pads in order to solder the new LCD connector to the board but i overheated while cleaning with the iron a...

First with no sim inserted the phone displayed “sim error” with sim card inserted there was the same error, so first i did a ...

The phone does turn on, i can hear it booting. But there is no image or backlight on the LCD. I don’t have another display to...

I’ve posted another topic for water damaged phone here, and i removed the cause of the issue, so it was solved. The home butt...

When i was taking off the shields i floated this chip and i lost it, can someone tell me the type of the chip, so i can get a...

The phone works, the problem is just with the charging. The port where the pins of the usb were little curved so i replaced i...

When i removed the usb port from the board some of the soldering pads were missing. First i tried to replace them with some p...

Simply i am stuck! A couple of services for unlocking locked devices rejected me because my device doesn't prompt for unlock ...

So there were two not so good looking components in the area around the LCD connector close to the backlight IC. Darkened capacitor, i replaced it. And one little darkened core-ferrite bead which i also replaced. And problem solved! The LCD lit up! I believe that the core-ferrite bed was bad, because its functions are to block noise for the backlight IC.

The home button’s flex cable caused the problem, because i tried connecting only the LCD and it works fine, but when i connect the home button to the board, the phone immediately goes off, or when i connect the cable while the phone is off it doesn’t turn on. Now i saw oxidation where the home button connects to the flex cable on the back side of the screen.

Look here: https://i.imgur.com/e7yy9u4.jpg