It is not possible to read the Wi-Fi serial number (SN) simply by connecting the iPhone to the programming software. Therefore, we will remove the NAND chip.

Heat the NAND chip evenly with a hot air gun at 420°C and airflow 80.

Pry the NAND chip up.

Apply some flux to the soldering pad of the NAND chip.

Remove the tins from the soldering pad using braid and a soldering iron.