Step 16
Place the desoldering wick on top of the existing solder ball.
Place the soldering iron on top of wick above the existing solder ball.
Hold the soldering iron in place until the solder melts into the wick.
Repeat the same procedure on the remaining two connectors.
Lift the old battery out of the iPhone. Be sure that all the solder has been removed before pulling the wires away from the board. The wires should come free with little to no resistance.
Step 17
We recommend that you clean the exposed surface of the board with a soft cloth or sponge and a small amount of rubbing alcohol.
Melt a small solder bead directly onto the metal connector on the board by placing the soldering iron onto the metal connector and then pressing solder against the tip and the board.
Once a small amount of solder has melted onto the board, lift the solder away first and then the soldering iron.
Step 18
The solder bead should look like a small dome or hemisphere. If it is flat or jagged, simply place the soldering iron back on the solder to re-melt it and then pull the soldering iron away. It may require a little more solder if this does not work.