Here are the repair guides for Xiaomi Redmi Note 4X

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My redmi note4 is water damage and it is dead it can be repair?

my phone is water damaged and not swith off and it will be again come in working condition or not??

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Hi @nkmismdhn

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

The liquid causes corrosion and provides circuit paths for the electricity which were not in the phone's operating design and could damage the components. The corrosion process starts immediately and continues until it has been cleaned properly

First do not turn on your phone and then you need to 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%+ (available at most pharmacies) to remove all traces of corrosion and water. Do not use "rubbing alcohol" as in some cases this is only 70% or less, can contain scents and is not as effective. If you do check the label to verify the amount of IPA.

Here is a link that in general, describes the process.

Electronics 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's a link to a YouTube video page which shows a lot of videos on how to dis-assemble your phone, which may be of some help

If this process seems too daunting, take your phone to a reputable, professional mobile phone repair service experienced in liquid damage repair and ask for a quote for a repair.

If you decide to do this, do it sooner than later.

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