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The March 2015 update of Apple's 13" MacBook Pro Retina Display, model A1502, features fifth-generation Intel Core i5 and i7 processors and introduces the Force Touch trackpad.

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SSD not detected in OS Recovery.

Hi, I have 2015 MacBook Pro with an upgraded SSD, a Samsung 970 Pro M.2 SSD.

I update Mac OS to 11.1 and want to made clean install. Tried to boot in recovery mode, but Disk Utility doesn’t recognize the SSD.

In terminal with command “diskutil list” I see only SD card and recovery 2GB disk and bunch of small partitions about 500kb.

When I boot the system I can see the SSD and system working fine.

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Which model do you have a 13" or a 15"

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@danj 13” MacBook Pro

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I'm still a bit lost here. Can you take a snapshot of Disk utility expanding the different layers in the left column posting the pics here Adding images to an existing question. If you can see the boot partitions then you didn't wipe the drive fully.

Also are you using a Big Sur boot drive (2TB external)? Or the OS recovery services off the internet?

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Some SSD adapter cards aren't compatible with older versions of macOS, therefore they do not show up. I know for OWC drives the minimum version they work in is macOS High Sierra, it should probably be the same for the M.2 to mini PCIe adapter you're using.

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Very true! That would be High Sierra (10.13.x) which offered the required driver for 3rd party SSD's like OWC. Here we are using a much newer macOS release! High Sur (11.1.x)

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Yes, however I had issues connecting to the Big Sur recovery CDN last week (I called Apple and the problem somehow got resolved however). The thing is that in macs who do not have an OS installed it is not possible for the system to know what is the last version of macos installed, therefore Cmd+R falls back to the original version of macOS that came with the mac. In the case of this one (I have the same model myself) it's El Capitan, which does not have support for those SSDs. To force boot to Big Sur network recovery Cmd+Opt+R should be used instead. In any case, the r/Apple community says that Cmd+R is useless which is rather true and for installing Cmd+Opt+R should be used instead.

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@commandblock - I don't use the internet recovery ;-}

I setup USB thumb drives as bootable OS installers, even Big Sur!

Much quicker and I don't need to worry about Apples servers messing up.

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@danj After the fail I had last week I'm doing that too. Much better

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