Years ago there was a feeling that Macs and MacBooks were only accessible to upper-middle class people. However, now these Apple devices begin to be more affordable to a greater number of people and therefore enjoy their features but you will also have to deal with problems and possible errors that rarely appear on Mac and MacBook.
Related: How to enable or disable the Mac or MacBook startup sound
One of the practices that can cause problems in electronic devices is the complete drain of the battery. This can cause the device to be unable to restart due to the battery being totally drained and they have no power to boot. This type of problem is also present on Mac and MacBook.
In addition, the problems can be aggravated if even connecting our Mac or MacBook to the charger, the battery does not charge and the equipment cannot be turned on. These problems are related to the complete drain of the battery of our MacOS equipment.
All these errors make your Mac or MacBook unable to boot normally. Fortunately, Apple incorporates in its MacOS computers the possibility of resetting the System Management Controller, also known as SMC. The SMC takes care of the management of low-level settings, such as temperature and battery management.
In this post you will find the solutions to the questions:
- Mac or MacBook won’t boot
- My Mac or MacBook won’t turn on after completely draining the battery.
- My Mac or MacBook is not charging the battery.
- How to restart the SMC of my Mac or MacBook
The way to reset the SMC on Mac will depend on the model you have. So if you have problems starting your Mac or MacBook after having completely drained the battery of your MacOS device, here is how to do it:
Connect your Mac or MacBook to the original charger for at least 30 min.
If you completely drained the battery of your Mac or MacBook and now your computer does not start, it may be because it needs a longer initial charge time until the “computer” can be able to start.
To solve it, you must connect the charger (if it is original) to your Mac or MacBook. Leave it charging for at least 30 min without interacting with the equipment.
During this time, your Mac or MacBook should turn on automatically. If it doesn’t do it on its own, press the power button to see if it starts up.
In case this does not work, we will have to proceed to reset the SMC of our Mac that we show you below.
Starting a Mac or MacBook that won’t turn on after completely draining the battery (reset SMC)
This method will work for MacBook Air or MacBook Pro with the T2 chip, (Macbook 2018 or later):
1. With your computer turned off completely and connected to the power, press and hold the keys: Control (left), Option / Alt (left), Shift / Shift (right).
2. Press and hold these keys together after at least 7 seconds.
3. After 7 seconds, without releasing these three keys, also press and hold the power button.
4. Now you have to hold down the four keys for another 7 seconds.
5. Row followed by releasing the four keys and waiting a few seconds.
6. Finally, press the power button on your Mac or MacBook to start it up.
Turning on a Mac or MacBook that won’t boot after completely draining the battery (reset SMC)
This method will work for MacBook Air or MacBook Pro WITHOUT the T2 chip and non-removable battery. (Macbook, Macbook Air, and MacBook Pro released mid-2009 or later) (The only exception is the 13-inch MacBook from mid-2009):
1. Connect your MacOS device to the charger.
2. Press and hold the keys: Shift / Shift (left), Control (left), Option / Alt (left).
3. Without releasing the three indicated keys, press and hold the power button for 10 seconds.
4. After this time, release all the keys.
5. Line followed by pressing just the power button to check how the Mac or MacBook starts up.