Won't charge, blinking green MagSafe, replaced DC-In already

One day, literally out of the blue, my 13" MacBook Pro (2.26) stopped charging. I was actually in the middle of using it when I realized that a) the Magsafe light was no longer green but instead now had no color and b) the battery indicator on the top right hand corner of the screen switched to displaying the battery percent.

I actually didn't think much of it at the time so I kept on using it. I assumed that the outlet blew out or something, since I was at a hotel.

However, when I got down to around 20%, I decided to switch outlets - to no avail. It would not charge. I thought that it was a MagSafe issue so I used someone else's MagSafe charger but it still wouldn't charge (and my MagSafe charger would charge THEIR laptop).

Browsing online I thought it was a DC In board issue so I ordered a new part online and replaced it. However, I'm not sure if I damaged the logic board in the process of replacing it or if it wasn't an issue with the DC In board in the first place, but now instead of showing no light at all on the MagSafe charger, it is now a steady, blinking green light. The computer won't turn on and won't charge, even after a PRAM reset and SMC reset. Googling wasn't much help; it seems like people mostly have problems with an alternating green and orange blink. Mine's just blinking green.

Any ideas? The computer is out of warranty.

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One thing that I'd like to note: most online sources say that 661-5235 is the part number for the 13" MBP (2009). However, the part that I purchased was 922-9307, which most sites report as the MagSafe for the 15" model.

The main reason why I decided to "risk it" was because of the large price difference (around $50, as the 15" is around $20 while the 2009 13" is $70) and because ifixit's website here: MacBook Pro Unibody 13" and 15" MagSafe DC-In Board states that "This product works in: All 13" Unibody MacBook Pros" and one of the model numbers say: 922-9307 so I assumed that the MagSafes were interchangeable.


To summarize, another possible problem: the DC-In boards are NOT interchangable; the problem with the laptop was indeed with the DC-in board, and that the new DC in board is incompatible as well. It might explain why with the old DC-in board the light didn't turn on at all, but with the new DC-in board it blinks green.

Can any of you iFixit geniuses confirm or refute that the DC-in boards between the 15" and the 13" 2009 are interchangable? I'd rather not shell out another $70 to experiment.


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