Chosen Solution
Hey , I’m not sure how this is start (maybe some short in the before adapter - now it fixed) The Mac is not turn on, I replaced to new battery but same behavior - you can watch this video: https://www.youtube.com/watch?v=YAniGEWm… While I opened the back cover after replacing the battery I plugged it to the power and tried to turn on, the screen stays black but it’s looks like the fans are spinning and stopping - like coordinates with the orange light blinks. Please see if you can help any how. Thanks
Okay, So after many investigation and troubleshooting the problem solved by changing to another power adapter. Thanks all
Easy fix is always to clean out the MagSafe charging port to get rid of anything that might prevent a good connection. Use a generous amount of mild cleaner and a small brush to scrub out anything that shouldn’t be there.
