If the adhesive under the SIM card reader socket is too difficult to cut through, follow these steps to loosen the adhesive:

Apply a few drops of high-concentration (90% or higher) isopropyl alcohol under the SIM card reader socket to loosen the adhesive underneath.

Wait thirty seconds for the isopropyl alcohol to weaken the adhesive.

Use an opening pick to cut through the adhesive under the SIM card reader socket.