Hi @lawstn ,
The easiest option is to replace the [https://www.ebay.com.au/itm/264823247516|USB charging dock board] (supplier example only to show part and possible cost).
Here’s a [https://www.youtube.com/watch?v=l4p_tU6_DiE|video] that shows how to replace the board. The board can be seen being removed at 2:56 minutes into the video.
There are other suppliers online that may suit you better. Just search a ''Samsung Galaxy A71 USB charging port dock connector board.''
If doing this yourself seems too daunting, contact a reputable, professional mobile phone repair service and ask for a quote.