![]() ![]() It is only the last solution to suspect the hardware failure of the power management system. Resetting SMC is not the preferred solution when the computer is not responding. For example, unable to open, unable to wake up from sleep, unable to charge the battery, unable to recognize the AC adapter, etc. It controls backlight, hard disk rotation, sleep and wake-up, charging performance, touch pad control, and some input / output related to computer sleep.Īfter a certain period of time, the settings in the system management controller may become invalid, which may lead to abnormal operation of the computer. As the name suggests, it is responsible for the power management of the computer. The system management controller is an integrated circuit (computer chip) located in the logic motherboard of a MacBook or MacBook Pro computer. Reset the system management controller (SMC) for MacBook and MacBook Pro ![]() If the battery is still not recognized after reinstalling the battery, try resetting the PMU. If your battery is still not recognized by the computer after 5 minutes (there is still a red x on the icon), you may need to reinstall the battery. If you see this icon, charge the battery for more than 5 minutes to exit low battery mode, and then start charging again. If you completely run out of battery power, when you plug in the MacBook or MacBook Pro power cord and start the computer, you will see an icon with a red x on the battery in the computer menu bar. Completely depleting the battery may be caused by using the battery until the computer sleeps, and then keeping the battery in the sleeping computer for a period of time without charging. If the battery of your MacBook or MacBook Pro computer is completely discharged, the computer battery will automatically enter a low battery state to maintain its ability to charge in the future. The solutions for Mac battery not being recognized are as follows: ![]() So what’s going on? Now let Xiaobian help you analyze the causes of this problem and its solutions. After some users turn on the Mac, they find a red x icon on a battery, which indicates that the battery cannot be recognized. ![]()
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