T-Mobile High-Speed Internet Gateway Operator 
Manual
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Issue: DRAFT Nokia 3TG-01275-AAAA-TCZZA 55
 
6 Removing battery and SIM card
6.1 Purpose
6.2 General
6.3 Recommended tools
6.4 Safety information
6.5 Procedures
6.1 Purpose
This chapter provides the steps to remove the battery and SIM.
Removing the battery or SIM card from the T-Mobile High-Speed Internet Gateway 
is intended to be a simple user experience for most installations. The battery and SIM 
card are located in the T-Mobile High-Speed Internet Gateway and is accessed by 
removing the base. 
6.2 General
The steps listed in this chapter describe how to replace the battery and SIM from the 
T-Mobile High-Speed Internet Gateway.
Note —  The T-Mobile High-Speed Internet Gateway has a 
pre-installed SIM card and battery. 
Note —  There are two liquid damage indicator (LDI) sticks 
pasted in the T-Mobile High-Speed Internet Gateway:
• On the side of the inner frame close to the vents
• On the bottom door, which is attached with screws
Note —  Refer to the T-Mobile High-Speed Internet Gateway 
Customer Release Notes before removing the battery or SIM 
from the T-Mobile High-Speed Internet Gateway.