
I bought two different models just to try because some reviews said they worked and others didn't. This works fine on both a T-Mobile data SIM and a voice/data SIM. I didn't get any reply at first, when it works it showed up on wifi but no connection. The SIM must have been free. In any case, once the computer automatically detects the USB port, it will automatically connect and redirect you to its Host Modem page. Definitely recommend! Avoid USB/tethering labeled 4G/LTE (not ZTE).

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