User manual 1. USB cable 1. 4G bands : B1-B2-B3-B4-B5-B7-B12-B17-B20-B25-B26-B28A-B28B-B38-B40-B41-B66. 3G bands : WCDMA :850-2100 /optional 850-900-1900-2100. 2G bands : GSM:1900 1800 850 900.
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