No power after install of new battery
I just installed an Apple certified battery into my mid-2009 MacBook Pro 13" (A1278). I've done it before without issue on another machine, but this time when the new battery was put in and everything else was reassembled, there was no power. I could not turn the machine on, the magsafe does not light up, and SMC reset does not work. I returned to my old battery and ended up with the same issue. I'm at a loss.
I found a thread where there were instructions to unplug the battery, hold down the power button, plug the mag safe in and then plug the battery in and the machine would power on. This has worked. The magsafe isn't even plugged in and it's on but the fan is running at full speed and there is no battery indicator in the menu bar.
I don't know what to do since the old battery suddenly didn't work either.
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I was able to turn the machine on and off using the posted method, but because I had no battery indicator, the mag safe isn't lit, and the fan runs full speed, I did an SMC reset and now I cannot power it back on at all.
- de Jessica