1. Happy Rdv's Avatar
    My Lumia 520 have been make demo content device nd make many problems eg-not sync microsoft account,not add other account like google,yahoo etc,nd not reset phone.
    07-22-2014 09:31 PM
  2. WanderingTraveler's Avatar
    If it's a demo device, just like you suspect, there are two things you should be able to do with it:
    >Return to seller
    >Flash appropriate firmware

    First option is safer option.
    07-22-2014 09:37 PM

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