1. Windows Central Question's Avatar
    I bought one Lumia 640 LTE single sim (RM-1073) device from Ebay in India. The phone has been duly officially unlocked and I am able to use the same. It is an excellent business executive device. I have only one problem. I understand that in USA AT&T has a restriction of maximum 10 sms in a group and because of that I am not able to send more than 10 sms at a time although the phone is unlocked from AT&T. Is there anything that can be done to resolve this issue in India so as to remove the restriction not applicable to my operator (Vodafone).
    01-14-2017 10:48 PM
  2. shmsnh's Avatar
    If possible, try to flash it with a country variant ROM.

    To be honest, I don't have any experience with carrier-locked phones, so I do not know what the problem could be.
    libra89 and RumoredNow like this.
    01-15-2017 11:29 PM

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