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When using your own SIM card:
Before installing the SIM card should have PIN code "0000", or PIN code removed.
(A PIN code can be changed or removed by putting the SIM card in to any mobile phone and
entering the 'security' menu.)
NB: Make sure the SIM card is inserted before the batteries. If you replace a SIM
card, first remove the batteries (and remove any other external power supply). The
settings are stored in the device memory. The SIM card shall have the “normal” size
and be suitable for 2G. It is advised to use an M2M SIM card.
3.2 INSERT THE BATTERIES
Insert the two batteries (CR123) in the module. Use the +/- indication for the correct
placement. If you replace batteries the settings will not be deleted, since they are
stored in the device memory.