PM-311 User Manual
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3. Remove the cover of the external battery connector (as marked
below) and place it on the lower position
(as marked
below).
4. Snap the battery pack into the external battery connector and latch into the hook wall securely.
For removing the external battery, repeat the above steps in reverse order to remove the battery.
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Your PM-311 can be equipped with a 3.5G module (optional) that can work with SIM card. (SIM card is
always working with 3.5G module.)
3.5.1. Inserting a SIM Card
To insert a SIM card into the SIM Card slot:
1. Turn off your System.
The PM-311 must be powered off while the SIM Card is being connected. Otherwise, it is harmful to both devices and it shortens the
life of these devices.
2. Unscrew the service door on the Tablet PC and Remove Battery.
3. Make sure the clipped corner facing inward with the metallic label of the card facing down. Push the SIM Card
firmly but slowly into the SIM Card slot.
To insert a SIM card into the slot, please pay attention only one correct side can be accepted for the card slot. If you cannot insert the
