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T-Mobile High-Speed Internet Gateway Operator
Manual
Nokia 3TG-01275-AAAA-TCZZA Issue: DRAFT
 
Procedure 6 Remove the Battery
1 Turn off the T-Mobile High-Speed Internet Gateway by pressing the power on/off button 
located on the side.
2 Remove AC cable from the power supply, and then unplug the other end of the AC cable from 
the electrical outlet.
3 Remove the Gigabit Ethernet LAN cables from all of the two Gigabit Ethernet LAN ports 
(LAN1 and LAN 2) on the side of the T-Mobile High-Speed Internet Gateway.
4 Turn the T-Mobile High-Speed Internet Gateway upside down so that you can see the base 
cover. See Figure 19.
5 Using the Phillips screwdriver (Cross), remove the two screws located on opposite corners 
of the bottom cover. See Figure 18.
6 Carefully remove the bottom cover. See Figure 20.
7 Unplug the battery by gently pulling on pull rib, then pull out the battery connectors. See 
Figure 21 and 22.
8 STOP. This procedure is complete.
Figure 19 Bottom of T-Mobile High-Speed Internet Gateway