Solved! Laptop doesn't start after keyboard replacement.

Dec 7, 2018
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Hello guys, I replaced keyboard on my Sony Vaio fit 15 (svf15), assembled it and now it doesn't start at all.
When I press power button it doesn't give any response, no sound, no light nothing. When I plug my ac adapter it doesn't show charging. I wanted ask what could be the possible problems while assembling? Can touching motherboard with bare hands cause problem. I slightly cleared the dust on mb with cloth and fan also.
I've checked all zif cables are rightly connected. Motherboard is seated well.
PLEASE HELP!!!.
Thanks in advance.
 
Maybe a cable was accidentally trapped when you closed down the keyboard and trackpad panel.

The first thing to try is to remove that top panel again and use a pencil lead to touch the micro switch that the power button presses. If that fails, try removing the battery and rely on mains only.
 
Dec 7, 2018
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Some of the keys were not working in the last keyboard.
Yes the ribbon cables are identical. I tried fitting ribbon cables perfectly 2 times & that didnt help. I trimmed 1mm of it and then connected it that also didn't work. I tried some more solution (wd-40 spray inside each individual key and all)
But nothing worked so I replaced the old keyboard.
Thanks for support.