MBP 13 dead after switching SuperDrive with HDD.

So I just replaced the SuperDrive with that HDD Sata III Adapter (with the HDD of course) and my MBP doesn´t turn on anymore.

Just a plain blackscreen, the fan does not work and there is no boot sound either.

I already tried to unplug the battery for a several hours and plug it back in. Nothing.

Tried to start with the magsafe and unplugged battery. Nothing.

Also tried a SMC Bypass. The fan is working but nothing else is.

The magsafe lights up in green when I plug it in. With or without connecting the battery.

Although the MBP doesn´t start up I hear a little noise when I press the power button.

Also I should mention that I connected an usb-stick before the first boot after I finished the SuperDrive replacement.

On the first boot (not a SMC Bypass) the fan worked but the screen was black.

Hope that anyone can help me.

Thanks in advance.

Greetings,

Steven

Update

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Can´t seem to find any missing component here. Battery is unplugged on purpose.

Edit: Found out that the little noise comes from the SSD (SuperDrive + SSD constellation).

When I take the SSD out and press the power button I hear only hear a tiny click or crack.

Update

So, out of curiosity and mainly despair I removed the logic board and looked on the back of it to see, if there are any burned or suspicious areas.

Maybe one of you sees anything...

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Answered! View the answer I have this problem too

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After connecting the board to a charger, with battery installed, feel around the board. Can you feel any unusual heat source? Start with the area in this picture right above.

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Return the machine to it's original configuration and see if it will boot.

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You could have caused pry damage. This is the first cause I would chase.

Specifically, start by examining this particular area of the board:

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Use magnification, 10x-20x if possible. Do you see ant tiny component missing or part torn off the board?

If not, we'll need to start looking at voltages, and that's out of my scope.

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Already tried every constellation and it did not boot:

SuperDrive + SSD, HDD + SSD, Superdrive + HDD, SuperDrive + Nothing

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kosaga will be eternally grateful.
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