Reset the MacBook System Management Controller (AMC)
1, hold down the Shirt control option key at the same time, and then long press the power button, about 10 seconds or so, MacBook will shut down operation
2. After the MacBook is shut down, release the Shirt control option key and the power key, wait for a few seconds, and then press the power key normally to start the operation, and open the MacBook again to show that the power can be charged normally
First make sure that the power cable is connected correctly and the main power supply is turned on.
< br >
2, if there is no response, please repeatedly plug the power cord, may be poor contact.
< br >
3, there is a problem with the power adapter, change a power adapter to try, if you can charge, it means that the previous power adapter has been broken, need to be replaced.
failure cause
The power adapter is faulty. When the laptop's power adapter fails, the computer cannot be charged normally.
The battery is faulty. When the laptop battery age or leakage, the computer naturally can not be charged normally.