Installation; Installing The Sim Card; Installing The Battery - Huawei F688 User Manual

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Installation

Ensure that F688 is powered off and disconnected from the power adapter.

Installing the SIM card

Ensure that the golden contacts of the SIM card are facing downward and that the
beveled edge of the SIM card is properly aligned with that of the SIM card slot. Then
check that the SIM card is fully inserted.
Do not frequently remove the SIM card when using F688.

Installing the battery

Ensure that the golden contacts of the battery mate securely with those in the battery
slot.
Base:
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