1. AC Question's Avatar
    I am currently in Boston ,and my huwai honor 4x phone is not working which has at&t sim in it . I doesn't show any signal .
    05-13-2015 07:14 PM
  2. B. Diddy's Avatar
    Welcome to Android Central! I don't think that phone is compatible with the bands AT&T uses. According to these specs on Amazon, the Honor 4x uses the 1800 and 2100 MHz bands for LTE, and uses WCDMA for 3G (which isn't supported by AT&T's network, which is GSM). The only overlap appears to be the 1900 MHz GSM band (2G).
    05-13-2015 10:02 PM

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