Huawei Mobile WiFi E5878 - Scenario 1: Accessing the Internet Using an LTE, 3 G, or 2 G Network

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Installing
Install the micro-SIM card according to the illustration.
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Note:
Do not remove the micro-SIM card when it is in use. Doing so will affect the performance
of your Mobile WiFi and data stored on the micro-SIM card may be lost.