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  1. mgladin

    A2289 820-01987 CD3217 replacement did not resolve 5v charging issue.

    I have an A2289 that I am working on that came in for data recovery. I plugged in the MacBook and it was charging at 5v at .28a, so pulled out a donor board and swapped out the chips on both sides. Issue did not resolve itself, so pulled them off a different board and tried again, still no...
  2. mgladin

    A2289 820-01987 stuck at 5v, .23a.

    Greetings, I have a MacBook I am looking at that is stuck at 5v. I just had the same board in with the same issue a couple of weeks ago, so I checked around the CD3217 ICs and found a short on C3208 (PP3V3_UPC_XB_LDO), so I removed the CD3217 IC and found the short was removed. I proceeded to...
  3. mgladin

    A2179 820-01958 Charges at 20v, cycles between 1-10w.

    Greetings! I have a MacBook that does not want to power on and is cycling total charging wats from 1W up to 10W and then it resets and starts the whole process over again. I have replaced the entire bottom case assembly with a known good to ensure there were no issues on the parts side, and the...
  4. mgladin

    A2289 820-01987 MacBook will not boot, but does step up charging.

    Hello, I have a MacBook that was taken to UBreakIFix for a battery replacement. However, they couldn't get the computer to boot even with a new battery and diagnosed it as a motherboard issue, sending the customer on their way. The customer then brought the MacBook to our store. Upon checking...
  5. mgladin

    Looking to get information to learn/improve skills.

    I am a very entry-level technician when it comes to soldering repairs. I can do HDMI, USB-C, Ethernet, Joysticks, and other simple items like that. I am however looking to improve upon this skill and learn how to do more in-depth repairs since my daughter has epilepsy (absence seizures) and I...
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