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Power/Data cable and headphone connectors malfunction

I have a Samsung Galaxy s9+ which I have owned for 2 years. Last month I was not able to connect my headphones and I was not able to use my power/data connector to charge my phone or to transfer data to my computer. I was told to use compressed air to clear the area of dust. It seems that the bottom of my phone stopped working. I use a wireless charger to use my phone. Are there any suggestions for additional solution to resolve this problem? Note: No physical damages to the phone and contact with water or drops or breakage.