Charger issues

[David88]

My son stuck an earring in my charger port and shorted the phone. The charger port sparked and turned the phone off completely.

It has been suggested a resistor on the charging port has blown and needs changing. Is that the case?

Since he phone has turned off completely and won't turn back on does that suggest worse damage?

I can buy a complete charging port board for £8 and change it myself if that is all required.

Thanks.

Edit: This is the board that can be replaced.

 

[svim]

The iFixit site has a nice guide on replacing that charging board. The page includes a Youtube video (if you're comfortable with such visual guides) and a step-by-step textual guide with graphics (if you prefer to that way instead).
https://www.ifixit.com/Guide/Samsung+Galaxy+A71+Charging+Board+Replacement/145854