Hi Delano, It's really hard to say if we can fix that issue, water damage can be vary tricky especially when it is more than just water that has affected the device. We do offer a very thorough cleaning on the motherboard to remove any corrosion or other solutions that might be causing the phone to not turn on. If there was an actual short on the board, we cannot fix that type of issue. Not sure what the other repair shop has tried but we can try a cleaning and we would charge $40 for our water damage service which is a non refundable fee that covers our techs time and labor for a full cleaning on all internal components.
If the mother board is is having a problem then most likely it was destroyed by the water it came into contact with. Would be better off buying a new phone.
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