T-Mobile High-Speed Internet Gateway Operator 
Manual
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Issue: DRAFT Nokia 3TG-01275-AAAA-TCZZA 57
 
6.5 Procedures
These procedures describe how to remove the battery and SIM to replace. See 
Chapter 7 for the procedure to replace the battery and SIM.
Figure 18 Location of SIM and battery screws
Caution —  Avoid dropping the phone or battery. If the phone or battery is dropped, 
especially on a hard surface, and the user suspects damage, take it to a service center 
for inspection. 
Caution —  Improper battery use may result in a fire, explosion, or other hazard.
Note 1 — Observe the local and national laws and regulations 
that may be applicable to this procedure.
Note 2 — Observe the following:
• The battery or SIM must be removed by a qualified service 
personnel.
• Indoor units must be installed with cables that are suitably 
rated and listed for indoor use.
• See Section 4.5 for temperature ranges of this device.
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