CipherLab RS35 Reference Manual page 33

Quick Start
REMOVE CARDS
To remove the cards:
1) Remove the battery.
2) Lift up the inner lid.
3) Unlock the card hinge cover and remove the card.
4) Mount the inner lid and the battery cover, and slide the battery latch back to the "Lock"
position
Note:
Both SIM1 and SIM2 card slots support 2G/3G/4G cards. However, you can have 3G/4G data
transmission on either SIM but not on both at the same time.
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