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The power on pads are on the top and bottom of the board at R5115 and R5116 (those components not populated). You should have 3.4ish volts on the SMC_ONOFF_L line. Like previously stated, if you disconnect the battery and plug in an 85 watt charger the board should come on automatically. A 60...

Buy the schematic and board view for $20. You'll thank yourself later on.

Hello, Anybody happen to have a usb c io board for this model? I will pay what you want for it. The left side ports on this laptop I am repairing are garbage, corroded beyond saving. I don't feel comfortable putting it back in to the machine, even after cleanup. Thanks, Stefan

Feeling a little silly. 2015 toshiba drive is not fully compatible with the 2013 820-3435. No issues with the 2013 issue sandisk drive. A school was swapping drives between students and happened to swap a 2013 and 2015 11" air ssd. It works fine in OS however. Not a problem that needs solved...

Hello, Just wondering if anyone has experienced this issue this before. A known good solid state drive is not being recognized in the slot. The logic board otherwise works and has no signs of damage and no errors. I have checked and 3.3v seems to exist everywhere it should. Any thoughts...

We set up a Mac Mini running the server app and added all of the AST images to it as netboot images. It limits the images to only show for the correct models I believe. Also have netboot images of 10.9, 10.10, 10.11, and 10.12. Set up the install apps as net install images for 10.7-10.12. Option...

They decided to buy a newer, even less repairable mac...

My location is midwest United States. Looks like it'd be 30-100 USD for me to ship it to The Netherlands.

Hello, The usual bad GPU. Anyone want to take this? I don't think now is a time to get invested fixing these. I will pay shipping to and from your location, as well as pay for repair via paypal link. Let me know. Not interested in refurbished board for it either, does a good one even exist...

Well, yes and no. Less electrically conductive for sure. Probably less thermally conductive than a metal containing compound, but by a small percent. Advantages are: easier application, no "setting" time, no fear of capacitance or shorting, and high stability (it is rated for 8 years). We had...

My opinion is if you aren't looking to the future and transition from break fix to managed services and IT support you are going to run out of headroom to grow eventually anyway. Unless your market is huge you are not going to sustain a business on one type of repairs. You could probably stay in...

We like Arctic MX-4 for all gpu and cpu applications. Less conductive than arctic silver. Easier to apply too, and doesn't lose performance over time.

Hello, Macbook had corrosion on or near internal dp connector and J4700. Cleaned up pins of J4700. Replaced edp connector with a new part. Macbook boots and shows external display, all seems to be working except for internal display. Is not a backlight issue, checked for image and tested with...

Hello, Had a late 2013 retina macbook w/ weird symptoms. Will boot maybe 1/10th of the time, graphical artifacting on boot screens, or failure to boot at all. Crazy fan spin. Found out serial # missing after attempting to boot in to ASD. No signs of any liquid damage at all. Looks like bad ME...

Well, shoot. Pin # 5 EDP_BKLT_EN is shorted to ground. Removed Q7707 and retested to be sure. Pretty sure this is done then. Cleaning in ultrasonic just in case I am extra lucky, but I doubt it. Thanks, Stefan

Oh, right. Display is working. Q7707: Pin 2 - 3.7 volts pin 5 - 0 volts

Hello, Feeling stumped on this one. No backlight. Fuse at F7700 OK. U7701 backlight driver was shorted to ground. No voltage getting past Q7706 at all. Voltage at pin 4 of Q7706 is 9.83 volts. Pin 3 is at 9.55 volts. Resistance at R7788 is 300K. C7782 is not shorted open. Pins 1,2,5,6 are at 0...

Someone try to replace a USB port themselves? I had one a few weeks ago that tried to replace a dc input jack. Ended up burning the board so badly that the fiberglass carbonized and became conductive enough to cause a short. I had to take a 1/4" drill bit to it to remove all of the shorting.

Boot from external recovery, try to erase it. Use an older version of Mac OS recovery, or just boot fedora and wipe it.

I second reflow RAM. The boards are long but not very wide, they are susceptible to flexing when abused. I have fixed several macbook airs with this issue from schools. Preheated board, used proper flux. They haven't come back.