1. kopyman's Avatar
    After downloading 8.1 I continually get a REG90 cannot connect error.
    11-05-2014 07:39 PM
  2. ShinraCorp's Avatar
    REG90 Cannot Connect... are you using a phone with Wi-Fi calling? Because that's all I found in the first page of a bing search....

    According to a Microsoft moderator at Answers Microsoft you will need to do a hard reset of the phone.

    SOURCE: http://answers.microsoft.com/en-us/w...f-ef503a466159
    11-05-2014 07:53 PM
  3. pankaj981's Avatar
    Call T-Mobile, they should be able to fix it
    11-05-2014 07:59 PM

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