Next, we replace the old SIM card reader with a new one. Apply some Paste Flux to the bonding pad of the SIM card reader.

Put the new SIM card reader in position. Keep heating it on the 200℃ Heating Platform. Heat the edge of the SIM card reader evenly with a Hot Air Gun 280℃ and airflow 7. Press the SIM card reader gently while heating. Make sure that the SIM card reader is pressed against the PCB.