Microphones are not working after battery install.

Hi @johnfburckhard

The boards may have needed more than just drying out.

There are two microphones in the phone. The lower one is used when making "normal" calls and the upper one when making "hands free" calls or using the phone away from the face etc although they may be used in conjunction with each other to minimize any background noise that may cause problems with a clear voice being heard. Perhaps that is why both may not be working

The microphones (small gold rectangular component) can be best seen in the Charge port replacement guide (one of the individual repair guides linked in the main guide below) in the images in Steps.16 (upper mic) and Step.23 (lower mic)

The impurities in 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. The corrosion starts immediately and is ongoing until it is completely cleaned away

First do not try to charge or to turn on your phone and then remove the battery as soon as possible from the phone to minimize any further damage.

Then you need to dis-assemble the rest of the phone and clean all the affected parts using Isopropyl Alcohol 99%+ (available at electronics parts stores) to remove all traces of corrosion and water. If possible do not use "rubbing alcohol" as in some cases this is only 70% IPA or less, can contain additives which may leave conductive residues and is not as effective. If you do have to use it check the label to verify the amount of IPA. The higher the percentage of IPA the better

Here is a link that explains what happens Electronics Water Damage

As always with electronics, especially surface mounted pcb be gentle when handling and especially when brushing away the corrosion. You do not want to remove any components from the board. Remove the shields that may be covering some components as the water may have got in under there. The ends of any flex cables and their connectors need to be cleaned as well

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

Here is the ifixit Samsung Galaxy S22 guide that may help.

If the problem is not resolved by cleaning you may have to purchase the service manual to find out what's wrong. I couldn't find a free download online. You may have better luck. Most Samsung phone service manuals have diagnostic flowcharts showing which components to check for each of the functions of the phone, combined with board layouts showing the location of the components mentioned in the flowchart and some even have component parts lists as well making it easier to find replacement parts if required

If this process seems too daunting, take your phone to a reputable, professional 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.