O want to change my charging port

Pretty tough unless you have electronics repair experience. Here are some simplified steps

Collect supplies: electronic case opening tool kit, micro needle nosed pliers/tweezers, soldering iron, solder, flux, desoldering braid, acid brush, iso alcohol

Determine charging port type - purchase on Amazon

Open case (remove any screws, pry on side of case to unclip top from bottom)

Determine you have correct replacement charging port (USB-C, Micro/Mini USB, etc.)

Tin soldering iron, flux charging port solder connections

Hold charging port with pliers and touch hot tinned soldering iron to solder connections (back and forth until port comes loose, careful not to leave it on too long)

Clean area with desoldering braid, then clean with acid brush dipped in alcohol, let dry

Prepare for new port

flux area where new port will sit

put port in area, matching solder legs with solder pads

hold port in place with pliers

put a bead of solder on tip of soldering iron

run soldering iron across the legs of new port until it is firmly connected to board (check to make sure there are no solder bridges or loose solder joints)

If you have solder bridges, run a dry iron across the legs a few more times to clean the excess solder off

clean with iso alcohol and acid brush, let dry

Before you put it back together, test it by plugging it in to see if it powers up. If all is good, put it back together.