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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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Backup wont recognize new hardrive.

MacBook Pro 13" retina early 2015

I installed the latest OS that this MacBook would take. I made a back up.

I installed the new OWC SSD. I attempted to restore from backup after having erased the new hard drive so that it was recognized as MacOS extended Journal. Selected backup and then selected a new hard drive. New hard drive was not recognized and is continually telling me to erase it and try again. No error message beyond that.

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Some will say install the OS to the new driver Externally... I had no problems to do it with my new drive internally. I would try giving the 1st method a try but you will need an external adapter to fit the SSD into....

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The version of macOS installed on your system also affects the systems firmware. So if you had Sierra or older (HFS+) on the system the OS won’t have the needed firmware update to allow the newer High Sierra and newer drive (APFS) to boot as it won’t understand the newer file system foundations or even access the drive.

Ideally you’ll need to create an external bootable OS installer USB thumb drive with a newer version of macOS. The last Apple supported version for this system is macOS Monterey (macOS 12).

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