[M3s] Bug or hardware problem?

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2017-05-20 05:22

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All was well till today.. i bought my meizu m3s almost 3 months ago, and today after i was on a call, the back function of my home button wasnt working and then i notice the same was happenning with the fingerprint scan. i restarted the phone, but the problem continued, but now the screen turned black from the automatic screenblock and wouldnt turn on again, no matter what i tried. Now ive installed the firmware again, and erased all data..the problem persists!! would this be caused by a bug or should i take the phone to the store?
Thanks for the help in advance!