For $29/mo, we provide access to advanced level technicians who will answer your questions on any Macbook board related matter to the best of their knowledge promptly & walk you through how to solve your problem so you can deliver a working board to your customer.
"Some people complain this board didn't start without both charger and battery connected. "
yes exactly true must both be connected.
it works fine but i replace both 7100 and 7501
thanks for your support.
Fan starts normally and rapidly go to full speed due to CPU gets hot.
I try more than SSD all not detected in Disk Utility and its works fine in other machine properly.
REBALLING SMC THEN REFLASH BIOS FIX THE PROBLEM
Yes I use original charger and test other charger but the same situation
When I trigger SMC_ONOFF_L pulse of PM_PWRBTN_L drop from 3.41 to 0.34 but no boot up fan not spin
IT STARTS NORMALLY FROM BATTERY BUT NOT DETECTS SSD.
I APPLIED SMC RESET AND PRAM RESET BUT NOT BOOT FROM CHARGER
when AC adapter connected fan not spain and charging led turns to red without attaching battery , when battery is attached charging led go to green and macbook works ,when i remove battery mac still working , in other hand macbook boot up and ssd not recognized and cpu temperature is so high...