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2015年三月发布的MacBook 11吋使用第五代intel i5/i7处理器,並且拥有比前代稍佳的性能与电池寿命。

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My MacBook Air loops in chime sound and wont boot up

Hi My Macbook air 2015 keeps on loop chime on boot up…

1 Should i try to boot from a usb just to isolate the flash ssd.?

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Hello. First you’ll need to find what exactly is wrong. It could be many things (Motherboard, SSD, NVRAM etc) First try resetting the NVRAM:

  1. Find the “Command”, “Option”, “P”, and “R” keys on your Keyboard.
  2. Turn on your Computer and hold down Command-Option-P-R together straight away.
  3. Keep holding this down till you hear the start up chime 3 times.
  4. Release the keys.

If this doesn’t work, try booting from the recovery:

  1. Find the “command” and “R” keys
  2. Turn on your computer and hold both keys straight away.
  3. Hold them until the recovery starts to boot.

If the recovery doesn’t even boot then there is something else wrong perhaps the motherboard.

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Hi … Sorry but non og the above suggestions helped… What to do know.. I dont want to buy a new flash ssd just to find out that there is a issue with the motherboard… Should I try to booth from a usb stick..?

please help

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Did the recovery boot? If it did then that proves the motherboard is fine and it just can’t boot anything from the SSD. Yes if you want you could boot from a USB because that would also prove that the computer is fine, just not the SSD

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