Couldn't unlock Coolpad defiant




    I purchased Coolpad Defiant through T-Mobile and it is past 45 days and i paid fully too.  But still i couldn't unlock the device, instead once i enter into the Unlock Application and click Next, it is giving below error :

    Failure in processing the request.  Please reboot device and try again


    Have rebooted multiple times and even reset it and tried, still no luck.


    Customer service, mentioned, they enabled unlock, but still am having this issue.  Did anyone faced this issue?  can you please help me?         



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