Chosen Solution
I bought this MacBook Pro some years ago. It was used and I had never opened it. Yesterday it stopped working, I noticed the power button just wasn’t working. I took the bottom cover off and I noticed that there were a little cable between the power pads test point on the logic board and the power button. Now I have a bad situation, one of the pads on the logic board has been pulled off (the green one of the picture attached), it doesn’t exist anymore. Is there is an alternative point that I can use to turn my system on?
Update (01/16/2017) I’ve made a mistake posting the first pic. it was just an example pic. Those are the real pics. in the first one you can see the yellow cable solder to the pad. In the second one you can see the pad missing. The keyboard works perfect it was not a problem of the key because with the yellow cable soldered it worked for more than 3 years. After i don’t know what happened and it stopped to work. I never knew that there were this modify because until saturday i never opened the macbook. Someone before me made this modify. Pics:
Original Situation: http://it.tinypic.com/r/mc8zed/9
Actual situation without the pad: http://it.tinypic.com/r/35iacyh/9
The pad you have highlighted is for SMC_ONOFF_L. If this is missing, it will not prevent the Macbook from booting, since this is just a test point. Measure the voltage of the 5th pin from the left on the keyboard connector, measuring whilst pressing the power button. If the voltage temporarily drops to under 1V, the Macbook is recognising the power button being pressed, and you have a different issue. Where was this wire you saw going? Could you add an image illustrating this? EDIT: Thanks for adding the image, really shoddy work the previous repairer has done to this. It is difficult to see, but it looks like C5710 and R5710 are missing, and they bridged both pins of R5710 together (one side is SMC_RESET_L, the other is WS_KBD_ONOFF_L, for the power button). Assuming they have done this since SMC_RESET_L is not making it from R5710 to where it needs to go, or because they couldn’t be bothered to get a resistor (was 1k resistor though, so not sure why they have done this). Desolder the wire, solder a new R5710 (1K, 5%, 1/16w 0402 resistor) and C5710 (0.1uf, 20%, 10V, 0402 capacitor). Grab a board view file for 820-2879 (Google), search for the references to find out where they go on the board. Check continuity from pin 1 of C5710 and R5710 to pin 7 of U5010. Also check continuity from pin 2 of R5710 to pin 5 of the keyboard connector. If it doesn’t get continuity on either of these, or the solder pads are missing, run a (good) wire between the 2 points. If this sounds out of your depth, send it somewhere for repair. The fact that the test pad has come off is no problem, this signal can be taken from other places on the board.
Try replacing just the keyboard. here’s how: MacBook Pro 13" Unibody Mid 2010 Keyboard Replacement
There are two possible solutions here: Send the logic board out to be fixed. Someone with good board repair skills should be able to patch in a new pad. But that doesn’t fix the root problem.Replace the upper case or if you can replace the keyboard subassembly so the power button is fixed correctly. Here’s a good video that shows what will be needed to fix the logic board: PCB solder pad repair & corrosion clean up - The epoxy method To fix the real issue here I would replace the uppercase. Here’s the IFIXIT guide: MacBook Pro 13" Unibody Mid 2010 Upper Case Replacement and here is the needed part: MacBook Pro 13" Unibody (Mid 2009/Mid 2010) Upper Case. You can find the needed keyboard subassembly online and after removing the upper case dig a bit deeper replacing the keyboard its self.
