Hello. My MacBook can't work

小娅 Said:

"Hello. My MacBook can't work: Yes. I erased it. And now i tried to update the macos. But it can't work. How should I do"

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Erase, then Reinstall the macOS

You need to reinstall the macOS. Use the Disk Utility on your Mac. Refer to these links:

• How to Erase an Intel-Based Mac - Apple Support
• How to Erase a Mac with Apple Silicon - Apple Support

小娅 Said:

"Hello. My MacBook can't work now. Help me I was clicked the button Erase by accidently, And it was restarted And can't update now. I tried several times and keep failing to work. I just got it yesterday. Can it update to use? I am so worried that it was broken."

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What was Erased?

Do you mean that you erased the drive? If you just got this yesterday, and it is not working, then contact Apple Support. Perhaps this is a faulty device?

Contact Apple Support

If you just got this yesterday, and it is not working, then contact Apple Support. Perhaps this is a faulty device? If purchased from Apple, then note that you have 14 days to return it.

Apple’s Contact Information:

• Contact Us - Choose Locations
• Proceed from there as necessary

Note: Phone calls are taking a bit to go through at the moment, due to lots of calls. And that makes sense, because with the Coronavirus Pandemic, many are at home at the moment, with much time on their hands to contact Apple. So, just stay on the line, and you will get through 

小娅 Said:

"Hello. My MacBook can't work now. Help me"

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Please Emphasize?

How is it not working? What exactly is occurring? More information may help you get a more direct answer.