Things you need:
- Philips screwdriver
- The sensor
- First, remove 3 screws (bottom of sensor)
- Then, remove both top and bottom plastic cases. Note: Keep the circuit boards together and intact.
- Finally, remove the simcard by "clicking in" the simcard with press, and removing.
When you insert the simcard back again, "click it in" with a press but be VERY aware of the orientation. Make sure the simcard is placed in the right way, or the device will not work.