Hi Sony, my favourite xz1 keep freezing everytime when i tried to use Whatapps and others apps (i cant remember which one). I need to reboot the phone at least once a day to solve the problem. This is kinda irritating as i do not have this experience on IOS phone. Kindly help to provide the solution as soon as possible to solve this problem. Please dont make your fan dissapoint with your product because of this.
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