1. Parth's Avatar
    I have windows phone 8.1 preview for developer.i cannot open extras+ info. I have a notification for update of it. but a error says "we are having trouble installing this application"I can't open or update it...

    And I don't want to factory reset it
    07-15-2014 01:54 PM
  2. Silviu Bogusevschi's Avatar
    Try to turn on and off the device.
    Check if the connection works well.
    07-15-2014 01:57 PM

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