Sutron WAD 200, Quick Start Manual, Page: 10 / 36

EN-8
8800-1218 Rev C.
4. To remove the SIM card,
4.1.
remove power to XLINK 100/500, if the cellular board is installed into the unit.
4.2. Place the cellular board on a clean surface, and remove the modem board from the carrier board.
4.3. Flip-over the modem board carefully without pulling the U.FL cable.
4.4. Remove the SIM card carefully from the sim card slot
4.5. If new sim card must be inserted, follow the instructions from sim card installation.
4.6. Carefully insert the modem board onto the carrier board, as shown in step 3.4