Mid-2009 MBP won't turn on - green blinking light

Discussion in 'MacBook Pro' started by DR225, Dec 6, 2015.

  1. DR225 macrumors newbie

    Dec 6, 2015
    Hey guys, my seemingly indestructible mbp is down for the count and I'm hoping I can resuscitate it with some help. Yesterday my mbp just shut off, which isn't that strange as I removed the battery a few months ago and the charger often disconnects when I move the laptop. A couple hours later though, I shockingly wasn't able to turn it on.

    The only clue I have is that instead of the constant green light on the charger cable, it's now a blinking green light. Also I recently replaced my old charger (had a frayed cord) with a newer magsafe charger that worked great for the two days I've had it (both chargers are 85w). I've already tried to reset the SMC.

    Going to the apple store isn't really an option, as my warranty is long dead and the nearest store is an hour and a half away. The most distressing part of this is that I wanted to hold out for Skylake but if I can't fix this, I'll have to look elsewhere (can't stomach paying for a barely updated mbp).

    Thanks for any help!!
  2. tylamb19 macrumors member

    Dec 27, 2014
    Had this happen to a friend's Pro a while back. My solution was pretty simple if you have ever opened your laptop before.

    1: Open the bottom cover (unplug the magsafe first!)
    2: Find the battery connector (should be near the bottom-right or bottom-center)
    3: Unplug the battery connector
    4: Wait a while (30 seconds-1 minute)
    5: Plug the battery back in (while you're inside the laptop, you might want to dust it out a little if you haven't before)
    6: Reassemble the computer
    7: Turn machine back on and use it like new.

    If this doesn't work for you, the problem could be in the magsafe board (DC in board). You can find these parts in a lot of places on the web. Replacing the magsafe board is a little bit of an involved repair, so if you are going to have to do a replacement of it, I suggest reading up on some repair guides first!

    Hope this helps.
  3. DR225 thread starter macrumors newbie

    Dec 6, 2015
    Thanks for the response man. Do you think this could still be the problem if the battery has already been removed? I took it out a couple months ago because it didn't really hold a charge and it expanded, making it difficult to click the trackpad.
  4. tylamb19 macrumors member

    Dec 27, 2014
    It easily could be related to the fact that you took out the battery. Running MBPs without their batteries can cause a host of different problems ranging from a slower clock speed to just not turning on (like in your case). I would try to order a new one, install it, and see how it goes.
  5. DR225 thread starter macrumors newbie

    Dec 6, 2015
    Thanks for all the help man! I really appreciate it. I'll start with the battery.
  6. tylamb19 macrumors member

    Dec 27, 2014

Share This Page