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64
T-Mobile High-Speed Internet Gateway Operator
Manual
Nokia 3TG-01275-AAAA-TCZZA
Issue: DRAFT
7.3 Recommended tools
You will need a Phillips screwdriver (Cross) to remove the battery or the SIM.
7.4 Prerequisites
You must complete the steps described in Section
before replacing the battery
or SIM card from the T-Mobile High-Speed Internet Gateway.
7.5 Safety information
Read the following safety information before replacing the battery or SIM.
Locate the QR code either on the bottom of the device or conveniently displayed on
the touch screen. Use the in-app QR code scanner.
Danger 1 —
Hazardous electrical voltages and currents can sericous physical harm or
death. Always use insulated tools and follow proper safety precautions when connecting
or disconnecting power circuits.
Danger 2 —
Ensure that all sources of power are turned off and have not live voltages
present on feed lines or terminals. Use a voltmeter to measure for voltage before
proceeding.
Danger 3 —
Always contact the local utility company before connecting the enclosure to
the utilities.
Caution —
Keep indoor devices out of direct sunlight. Prolonged exposure to direct
sunlight can damage the device.
Caution —
Do not disassemble or open crush, bend or deform, puncture or shred
Caution —
Do not modify or re manufacture, attempt to insert foreign objects into the
battery, immerse or expose to water or other liquids, expose to fire, explosion or other
hazard.