Chosen Solution
Hi all. My Macbook Pro 15” touchbar from late 2017 (A1707) suddenly stopped charging the other day. I was using the laptop while plugged in when I suddenly noticed my Macbook was running low on battery. I restarted my macbook, left it for a few minutes and then plugged it back in. My laptop charged again, until it reached about 55% and then I noticed it stopped charging again. Now, if I leave my macbook unplugged for a while and then plug in the charger, for a brief second my Macbook thinks it is charging, but then almost immediately after stops charging again. My Macbook is now out of battery, so its unusable. I m thinking this is an issue with the logic-board (perhaps a broken CD3215 , a broken ISL9239 or maybe a blown fuse, resistor or capacitor on the board). I was wondering if anyone has an idea of what it might be, or how to start debugging this to find the broken component? Also, if anyone has tips on what equipment would be needed to attempt a repair please let me know. Any help is very much appreciated! Best, Bram
Either your logic board needs repairs (charging logic) or your battery needs replacing. To help isolate which you’ll need a USB-C power meter. Do you have one?
There’s a good video by Louis Rossmann where he goes through the A1707 charging circuit. He erroneously replaced the TI 3215 chip only to find out it was a bad capacitor (as I recall). Here’s the video: https://www.youtube.com/watch?v=G1pSqm97…
I have a 2017 15” Macbook Pro (don’t know if it’s A1707) with charging issues. After the USB ports all went south (finally!) Apple agreed to replace the logic board. Also replaced was the keyboard and battery. With this refurbished computer, first I experienced the battery-not-charging issue even though it’s plugged in and running off the AC power. Eventually, after fiddling around for circa 30 minutes, and the battery down below 90%, and still plugged in, it cured itself! This seems to happen about once a week, with the Apple charger or one from Milpow. Next when I plugged the power into the right-rear USB it boop-boop-booped … with power on-off-on-off-on… I unplugged and plugged into all three other USB ports, and they were fine. This boop-boop-boop… condition freaked me out before and lead me to taking my Mac in for the eventual logic board replacement. Now I’m freaking out again!
