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Screen shaking and touch hard to work

i apply pressure to sking and it stops what can ido to fix

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crwdns2933313:01crwdne2933313:0

My screen keeps blinking on and off and i am not able to put in my password for internet with it keeps blinking on and off. Also, I have tried everything such as factory reset and tried backing it up as well. I need help can u please tell what should i do,because am about ready to throw it outta of the window ASAp :(

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jnapps mu crwdns2934231:0crwdne2934231:0
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