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Repair information and guides for the iPhone 6 that was released on September 19, 2014. Model Numbers: A1549, A1586, and A1589

4994 Questions View all

What specific fault on the motherboard would cause continuous boot?

Just wondering if there is a specific fault on the motherboard that would cause the phone to turn on but not get past the Apple logo, after water damage has occurred. It will reboot continuously until the battery is drained, and it will not get past the Apple logo so it can't get recognized by iTunes or any other program. Any ideas?

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Chosen Solution

Cripes that's a broad question. Have you tried putting it into dfu and restoring the phone

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sorry I didn't think to mention that it will not go into dfu/recovery mode

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Ok, why not? Both the home and power buttons working?

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I just remembered something, from what Dre wrote on another post. Have you tried opening the phone, and cleaning it with a toothbrush and 90 proof isopropyl alcohol?

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Most Helpful Answer

Augie, no there is not anything specific. Unless you cleaned your phone properly you cannot do a proper trouble shooting. .Just like any other submersion, it is a bit of a guessing game as in how your phone will respond to a proper cleaning. The importance right now is to not turn it on, or trying to sync/charge it. Remove the battery, and disassemble is right down to the logic board. You must remove the EMI shields and clean everything with isopropyl alcohol (90%+) and a soft brush, including all connectors and cable ends. Check for any burned or missing components. Use this guide to see how to properly clean your phone. It was written for a 3G but all the points are still pertinent to your phone as well. You may have to repeat this step a couple of times. Once it is cleaned, reassemble it and replace the battery, this is not optional but a must. Then reevaluate for any real damage. Right now, everything will only be a guess.

iPhone Image

Guide

Repairing iPhone Liquid Damage

Difficulty:

Difficult

1 - 2 hours

iPhone 6 Logic Board Image

Guide

iPhone 6 Logic Board Replacement

Difficulty:

Moderate

30 minutes - 2 hours

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4 Comments:

Thanks for the reply. I've done this process and can't figure it out. I was wondering if there is a specific component that I could replace that would get it to boot normal.

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You used a new battery? Post a couple of images of your logic board with your question. That way we can see what you see.

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Yes, I used a new battery, that didn't solve the problem. I am not sure how to post images.

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Use this guide Adding images to an existing question to add images to your question

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Augie will be eternally grateful.
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