H3C Technologies H3C MSR 2600 - Manual (Page 27)

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1. Remove the screw of the 3G SIM card socket cover on the router bottom and take off the cover.
Figure 16 Removing the 3G SIM card socket cover
2. Push the 3G SIM card holder in the direction marked "OPEN" so the holder projects upwards.
Do not insert the 3G SIM card to the card holder before projecting the card holder up or lift the
holder forcibly.
Figure 17 illustrates the incorrect installation methods.
Figure 17 Incorrect installations
3. Insert the 3G SIM card along the slide rails to the holder.
4. Put down the holder and push the holder in the direction marked "LOCK" to lock the card in
position.