Blank screen

Peterkotan

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Feb 3, 2017
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Hi. I have a galaxy s5 for 2 years now, and recently i had to change the microphone. I took the screen off, and damaged the copper on it. Then i changed the microphone, plug it back to see if its work and it was. So i put the adhesive on, gave a little heat and now when i turn on the phone the screen is completely blank. There is the blue light flashing and vibrates 3 times. Im not sure if i damaged anythi ng else but the copper behind. Is it possible that i damaged it with heat? Would it be visible if so? Why is it vibrates?. I would like to hear any suggestion. Thanks Peter
 
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