2011 Macbook Pro won't turn on after hard drive swap

[smythic7]

Hi, I just replaced my 2011 13" mac book pros' hard drive with a solid state drive. Tried to turn the mac book on and nothing happened. So i reinstalled the old hard drive and that won't even work. Been searching Google and some forums to find and answer but haven't found anything.

 

[MaxPower72]

did you unplug the battery and forgot to reconnect it?

 

[justperry]

did you unplug the battery and forgot to reconnect it?

That would be

You don't hear anything when you press the power button?
Open it up again and look if there are any loose connectors.
Hopefully for you nothing bad happened like static electricity, although that is not too much of a problem since the MBP is made of aluminium and you touch it when you open it.

 

[PerformaGuy]

Time to zap the PRAM and reset the PMU!

Hold Option P R while turning on, release after second chime.
For PMU, remove battery then hold power button for 10 seconds.

 

[justperry]

Time to zap the PRAM and reset the PMU!

Hold Option P R while turning on, release after second chime.
For PMU, remove battery then hold power button for 10 seconds.

It doesn't even turn on so that won't work and I think the things you recommend are for PPC/machines with removable batteries, isn't it that the battery is inside in his machine.

 

[MaxPower72]

Whenever you are working inside your MBP is good rule to disconnect the battery from the LB. I usually do that when I replace RAM and SSD.
That's why I asked, you might have disconnected it for safety and in the rush of putting the system back together and fire it up you might have forgotten to reconnect the battery. I was just pointing you in this direction since the MBP won't even light up I thought it could have been the battery first and foremost.