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Repair information and guides for the 2015 Retina MacBook Air. Model A1534

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How to format the internal SSD, Please Help!

Please help

I have a 2015 MacBook 12” retina that boots only halfway, then turns off.

I have tried almost everything with 0 results. To make a long story short I see the SSD in Disk Utility, but, if I try to format it for a clean install it just hangs there for several hours without any result. It is formatted with APFS for the moment.

  • I tried with terminal but I get the message that I have not permissions to format it.
  • I tried with external USB with both High Sierra and Sierra and no result.
  • I have tried to install from the net with Mojave Beta but I get the message that my disk is locked ….

Going really crazy now!!

I can see how much of my space disk is occupied 180 GB of 512 GB. When I click on info for the disk in Disk utility it tells me that my disk is NOT writable … hmmm I am lost

Please help

My knowledge in terminal is really basic so any advanced users are really welcome .

I really hate the soldered SSD’s , what idiot at Apple got that brilliant idea ???

Thanks in advance to any tips!

Best regards from Switzerland

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crwdns2933897:0crwdne2933897:0

What do you mean by “tried with external USB with both High Sierra and Sierra and no result “

Did you try booting from an ext drive (HDD/SSD)? or did you use a disk image on a USB drive to restore from?

You have clicked unlock on the disk right? If your using Filevault

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Hi iFix

thanks for your answer . Yes external boot disks for clean install , not disk image to restore from.

If I click on the disk there is no unlock option . Nothing happens when I right click on it.

It is my sisters mac and as far as she knows she didn't use filevault.

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