Damaged Iphone 5, missing components black screen $ problem in cellphone ios/hardware , assistance please

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Damaged Iphone 5, missing components black screen $ problem in cellphone ios/hardware , assistance please

On March 28, 2015, Posted by , In iPhone, With Comments Off on Damaged Iphone 5, missing components black screen $ problem in cellphone ios/hardware , assistance please

hello everybody I have to repair an iphone 5 16GB and kindly ask your to be helped.


It had broken screen, very damaged on top so I tried to repair it Along with a new lcd but Along with no succes. It doesnt turn and constantly vibrates when I connect to itunes. It vibrates Along with no lcd too.
I am sure the new screen works becouse I tried on another iphone.

So I checked motherboard and I detected missing components.
According Along with the pcb layout, missing components are:

c88 – 50 pf
fl34 – fuse
c246 – 0,1uF

I shorted pads where fl34 was placed. I think the phone should work Along without missing capacitors.

Along with no lcd and iphone connected to itunes I measure tension on some pins:
LCD_PWR_EN_CONN = 0V
LCD_PANIC_L_CONN = 1,8V
LCD_RESET_L_CONN= 1,8V

I know that when iphone vibrates there is a hardware faulty. There are some test point to figure out what is broken?

Thanks

No Comment so far:

  1. Bo-Rens says:

    It could be many thing, but those two caps even when they are not mounted it wont affect the lcd , so something else is not working. Usually when the lcd is not working, components arround lcd connector is broken or missing, kindly check them.

    Is it water damaged? wha thappened to it?