44 Dolphin CT40 Mobile Computer
3. Tap the drop down arrow next to Carrier Config.
• If the update is successful, the Carrier Selection screen appears and displays
the updated carrier information.
• If the update is unsuccessful, a message appears. Tap OK to return to the
Carrier Selection screen.
Activate the Phone
You use a SIM card to activate the phone on your CT40 WWAN model computer
(CT40-L1N). You can purchase the micro SIM card from your network provider.
1. Select a network carrier. To learn how, see Add or Switch Between Network
Carriers on page 43.
2. Press and hold the Power button until the options menu appears.
3. Tap Power Off.
4. Remove the battery from the computer, Refer to page 5.
5. Lift up the edge of the SIM card access door.
6. Press down gently and slide the card holder into the unlocked position.
Lift the edge of the card holder up.
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