macbook pro mid 2011 battery replacement

Since the debut of the Apple iMac in 1998, OWC has offered Apple-compatible memory upgrades for any Apple iMac desktop. All OWC brand memory is thoroughly tested and assured to perform flawlessly with your particular Mac Pro model and is covered by a Lifetime Advance Replacement Warranty and a Money-Back Guarantee. We also offer expert technical support who are more than happy to answer any questions you may have. To make the memory installation process as straightforward as possible, we provide step-by-step installation videos to walk users through the upgrade process. Since the Apple Mac Pro debut in 2006, OWC has offered Apple-compatible memory upgrades for any Mac Pro model. After removing the casing, you can access the original memory modules and replace them with any other Apple-compatible memory. On the top of each Mac Pro, there is a locking mechanism that will allow you to remove the exterior casing when unlocked. I would suggest trying to replace the mag-safe board.The memory upgrade process for any Mac Pro is easy and should only take about five minutes to complete. What is resistance between Pins 17/18 and 27/28 or U7000? Your issue is most likely U7000 R7051 and 52 and possibly R7021 and 22. Perhaps jumper wire? I have no confidence to do that. I am going to change Q7030, Q7035 and ISL6259 at the same time, but I have no idea how to connect pin23 to the board. However, the bad news is I accidently ripped off the pin23 of U7000. When I took off both transistors, the short is gone. I now know the previous Q7030 is shorted. Later I detected a short on PPBUS_G3h and after some digging, it’s the shorted Q7030 and Q7035. So I measured again the PPBUS_G3h - more than 16V! After some time the whole board dead again with no green light. Visual inspection looks quite good.Īfter I plugged in the charger, the green light turns on but the fan did not spin. This time both good news and bad news.įirst the resistance is back to normal - I measured 2.9 ohms between pin 17 and 18 after I changed the resistor. What do you think causes the problem? Do I need to change dc-in board, or U7000, or both? Is there any other possibility leads to the dead mac? PPDCIN_G3H - 16.69v (is it too low? actually my J6900 pin1 (PP18V5_DCIN_FUSE) is the same reading).I started to learn the board repair several days ago. Now it can not turn on, and there is no green light on the charger. Last week I tried to upgrade my MacBook pro 13’ late 2011, yet screw touched battery jack and possibly burned the logic board.

Macbook pro mid 2011 battery replacement