Hi @irenef ,
Motorola doesn't claim that the phone is water resistant, simply that it is water repellent. Subtle difference but enough to get them out of trouble if it is immersed in water.
This is what they say on the product specifications:
"Advanced nano-coating technology creates a water-repellent barrier to help protect against moderate exposure to water such as accidental spills, splashes or light rain. Not designed to be submersed in water, or exposed to pressurized water, or other liquids; Not waterproof". (the highlighting in the text is my addition to the quote).
As to repairing the phone, 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
Rice is good to eat but does nothing to fix the problems caused by corrosion.
Don't Put Your Device in Rice. Here's Why
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 video which shows 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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