Long screw damage causes short?

Question

iPhone 6

Introdotto il 19 settembre 2014, questo iPhone con schermo da 4,7" è la versione più piccola dell'iPhone 6 Plus. Identificato dai numeri modello A1549, A1586, and A1589.

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Mobilefi @inspiraattori

Rep: 147

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Postato: 9 gen 2017

Opzioni

Long screw damage causes short?

Hi. Is it possible that long screw damage can cause short circuit in Logic board so the iPhone can't power on at all, no vibrate even good battery and iTunes cannot regognize the iPhone? I have iPhone 6 and seems that there are three possible long screw damage. The middle one and the both bottom. I already started by removing right bottom screw hole and there are quite impressive long screw damage :)

Everything else seems good in this board (under microscope) so I would like to know if I can just start repair those long screw damages and make iPhone alive again.

Right bottom screw hole

Update:17.1.17

The bottom right screw hole there was two broken trace and those traces causes that the iPhone 6 not turning on. Now I've fixed those traces and now computer and iTunes regognize the iPhone. But the screen still not turning on (no backlight). Is that backlight traces in the left screw hole? First picture is before rapair and below is the picture after repair.

Update: 01.29.17

Repair of left bottom screw hole. Added all trace and LCD still not turning on.. Is that pointed trace excessive? Or does it belong there?

EDIT: note to everyone: dont worry about the board, I just bought this iPhone knowing there are at least long screw damage and I bought it as a donor board :)

So before I start to using it as a donor board I would like to expand my skills to trying repair those trace under screw hole. And I update later how it's going :)

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Soluzione Prescelta

Minho @refectio

Rep: 221,4k

Refectio - Mail-in Micro-Soldering Repairs & Data Recovery

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Postato: 9 gen 2017

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Is this the same phone Screw hole pry damage?

LSD is not a trivial repair, even for a micro-solderer. Are you just testing/expanding your skills or trying to save this phone for a customer. I would tread very carefully before attempting a LSD repair for the first time on a customer device.

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5 Commenti:

@refectio LSD=LCD? LSD=Lysergic acid diethylamide (Acid)?

9 gen 2017 da oldturkey03

LSD Long Screw Damage.

9 gen 2017 da Ben

@refectio Hi. Yes that is the same phone. I just expanding my skills. Do you know if screw damaged trace does the short to board?

10 gen 2017 da Mobilefi

Yes, yes it can.

29 gen 2017 da Rany

Thank you Rany!

29 gen 2017 da Mobilefi

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@refectio Hi. Yes that is the same phone. I just expanding my skills. Do you know if screw damaged trace does the short to board? — Mobilefi

Rany @rany Rep: 41k iCenter SARL 15 78 89 · Answer 1 · 2017-01-29T12:48:58-07:00

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Rany @rany

Rep: 41k

iCenter SARL

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78

89

Postato: 29 gen 2017

Opzioni

This.

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5 Commenti:

Oh and don't put a screw back in the middle/upper hole. You'll possibly short a line that kills the board or throws it in recovery.

29 gen 2017 da Rany

Thank you. I have tested those traces and they are good. My picture not have best quality :/

29 gen 2017 da Mobilefi

No display is usually caused by broken traces from this screw hole. You have no display or no backlight? And what is iTunes saying when you connect the phone?

30 gen 2017 da Rany

I have no display (LCD) and no backlight. I've cheked LCD screen without backlight and showed light behind

31 gen 2017 da Mobilefi

No display (LCD) and no backlight. I've checked LCD screen without backlight module and I pointed light behind the LCD and there is no image. iTunes says that iPhone that you want to restore there is no SIM card inserted. So the iTunes regognize iPhone after right bottom screw hole trace repair.

31 gen 2017 da Mobilefi

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Stephen Elliott @mdrecovery Rep: 1,8k 4 8 2 · Answer 2 · 2017-01-10T02:09:52-07:00

Stephen Elliott @mdrecovery

Rep: 1,8k

4

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Postato: 10 gen 2017

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Yes lsd can cause problems to the board. You need to get it to rehab immediately before it hurts loved ones with its addiction!

Long screw damage can definitely cause a full short if you screwed into traces. A couple screw holes have traces underneath them and if they're broken a short is almost inevitable.

I do agree, lsd is not a simple repair as you can easily do more damage to the board if you're not careful. Basically you will want to scrape the solder mask off to reveal possible damaged traces then cut and apply new ones to bridge any broken ones.

I can't emphasize enough this is not a simple repair if you haven't done it before and highly recommend handing it over to someone who has unless youre using this as a practice board.

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Thank you for wery informative comment! The bottom right screw hole there was two broken trace and those traces causes that the iPhone 6 not turning on. Now I've fixed those traces and now computer and iTunes regognize the iPhone. But the screen still not turning on (no backlight). Is that backlight traces in the left screw hole? First picture is before rapair and below is the picture after repair.

19 gen 2017 da Mobilefi

Of course, thats awesome you repaired the damage traces. As for backlight have you tested the three main filters and diode? I would would make sure bl_anode line isn't shorted to ground as this is a common one that kills backlight. You can quickly test against the connector pin itself. You could have a separate issue with your backlight circuit and it might not be trace related. Backlight problems on the i6 and 6s are too common to count.

19 gen 2017 da Stephen Elliott

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Brandon Hollenback @bhollenback Rep: 221 Hollenback iRepair 6 1 · Answer 3 · 2017-01-09T14:23:27-07:00

Brandon Hollenback @bhollenback

Rep: 221

Hollenback iRepair

6

1

Postato: 9 gen 2017

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If there are 3 different areas where long screws may have penetrated the logic board, it is very possible that those could cause so many problems with the phone. You should be able to repair the phone but if not, you can use this part with this guide to fix it.