Chip taken out of motherboard, what is it?

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iPhone 4

Fourth generation iPhone. Repair is straightforward, but the front glass and LCD must be replaced as a unit. GSM / 8, 16, or 32 GB capacity / Model A1332 / Black and White. This page aims to help users troubleshoot, fix, and seek help for the iPhone 4.

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zaef89 @zaef89

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Posted: Mar 24, 2014

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Chip taken out of motherboard, what is it?

There appears to be a chip taken out of the top of motherboard and a golf piece is broken off. What parts are these and can they be fixed? iPhone is turning on fine but the touch screen isn't working.

The touch screen isn't working, is this caused by this break in motherboard.

iphone 4 and did quite a bit of damage to the front. The screen was badly cracked but would still turn on but the digitizer wouldn't work. I have since replaced the lcd and digitizer and check many times to make sure it is connect correctly and the lcd works but the screen is not responding to any touches. I have replaced lcds and digitizers before successfully so I don't think it's a connection issue. Does anyone know what the problem might be?

Thanks in advance.

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oldturkey03 @oldturkey03

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Posted: Mar 24, 2014

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zaef89, just to be a tie breaker here :-)That part is reference designator SP1_RF which is the spring _Upper_ antenna-N90. It is unrelated to your digitizer. Check your 343S0499 touch controller and see if a reflow could fix this. Of course you will have to check your logic board for any other missing, broken, or burned components. Hope this helps, good luck.

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Thanks very much oldturkey03, I presume this means the antenna is broken as well? The phone is probably not work fixing at this stage.

Mar 25, 2014 by zaef89

zaef, that it hard to say. I would take another look at all the components and see if there is any suspicious component. It will require some good tools and knowledge to attempt to fix the touch controller if it has failed. I would try one more display assembly to make sure that the digitizer is okay. I have had bad digitizers on new assemblies before....As for the antenna spring, it could be resoldered without to much difficulty.

Mar 25, 2014 by oldturkey03

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Thanks very much oldturkey03, I presume this means the antenna is broken as well? The phone is probably not work fixing at this stage. — zaef89
zaef, that it hard to say. I would take another look at all the components and see if there is any suspicious component. It will require some good tools and knowledge to attempt to fix the touch controller if it has failed. I would try one more display assembly to make sure that the digitizer is okay. I have had bad digitizers on new assemblies before....As for the antenna spring, it could be resoldered without to much difficulty. — oldturkey03