Released September 16, 2016. Model 1660, 1778 Available as GSM or CDMA / 32, 128 or 256 GB / Rose gold, gold, silver, black, and jet black.

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Water submersion for 5 seconds

My iPhone 7 was in water (bottom half only) for less than 5 seconds and now neither of the microphones are working. Is this phone not water resistant? I get that it can't be in water for a long time, but 5 seconds and it not working seems a bit insane. How do I know if the microphone not working is to do with this? Neither top or bottom microphones are working properly.

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Hi,

When you say it was in water, did it fall in, did water flow over it, how did it get it get wet?

If it did drop or fall, then perhaps the water did not cause the problem.

Logic dictates that if it was working properly before it got wet and if it did not drop or fall into the water, causing the case to crack or perhaps some internal components to be jarred loose, then since it is not functioning correctly now, water must have entered somehow.

Either way, due to water ingress or a fall the phone has to be opened to allow the problem to be correctly diagnosed so that it can be repaired.

As you know water and electronics and electricity are not a good mix.

The water causes corrosion and provides circuit paths for the electricity which were not in the phone's operating design and could damage the components.

First do not turn on your phone and then you need to with the phone turned off, remove the battery as soon as possible from the phone to minimize further damage.''

Then you need to dis-assemble the rest of the phone and clean all the affected parts using Isopropyl Alcohol 90%+ to remove all traces of corrosion and water. Do not use "rubbing alcohol" as in some cases this is only 70% and is not as effective. If you do check the label to verify the amount

Here is a link that describes the process.

Repairing iPhone Liquid Damage

You may have to replace the battery as it is very hard to recover a battery from water damage.

As always with electronics, especially surface mounted PCBs be gentle when handling and especially when brushing away the corrosion. You do not want to remove any components from the board.

Hopefully after you have done all this the phone might possibly work correctly again.

Here is a link to the ifixit guide(s) for repairing your phone.

iPhone 7 Repair

If this process seems too daunting, take your phone to a reputable, professional phone repair service and ask for a quote for a repair. If you decide to do this, do it sooner than later.

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Comments:

@jayeff i disliked this, and here's why:

First of all, the iPhone 7 has a IP67 water protection rating. Also, why would you say to clean corrosion and replace the battery when the phone was in water for 5 secs on a waterproof phone? That didn't make much sense.

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Hi @gigabit87898

Fair enough, but consider my summation of the OP's question. Phone working, phone got wet, problems with phone. Just a coincidence?

OP did not state whether the phone was dropped into the water or not. If it was, this may have damaged the waterproof integrity of the phone. This was asked in my answer.

Also stated in answer that the phone would have to be opened and inspected as to the cause of the problem.

If it did not fall then what caused the problems after being immersed? If not water ingress the guide was there to show how to open the phone to inspect for possible causes. If water did cause the problem it will be evident on inspection and my answer was then intended as a guide as to what to do if so. Also stated that the battery 'may' have to be replaced not 'should' be replaced.

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@jayeff i retracted my downvote, my bad :(

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