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2012年半ばモデル、A1278/2.5 GHz i5または2.9 GHz i7プロセッサー。

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New Samsung SSD not booting past apple logo screen

Hello all,

I purchased a Samsung EVO 850 for my mid 2012 13" MBP.

I installed the SSD, booted up internet recovery and formatted the drive to Mac OS Extended Journaled. From there I plugged in my external HD w/time machine and prompted the system to migrate all of my data using my latest time machine back up.

My backup was from the day before and was using Mojave. Everything seemed to work it accepted the back up and then when it went to restart and boot up the apple logo appeared the progress bar underneath loaded fairly quick for the first 75% or so then it slowed and when it finally was all the way complete nothing ever happened.

I tried to safe boot, tried to reset PRAM, and nothing changes it gets stuck the same time in the same fashion. I booted it back up with internet recovery to see if it was recognizing the new SSD which it was and even showed all of my data on the SSD so it is connected, it is being recognized, and presumably my data was transferred from my time machine backup yet it simply will not actually boot up.

Any thoughts or suggestions would be greatly appreciated.

I've considered wiping and just installing a fresh OS and then once it boots loading back up my time machine if that is even possible.

However would I be able to do a fresh install of Mojave or would I be stuck installing something far older in which case I would then have to continually upgrade until I got back to Mojave?

Thanks in advance.

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First I would start off replacing the HD SATA cable as your new SSD is likely pushing the limits of your older cable and often times I find the cable is worn. Here’s the IFIXIT guide to replace it MacBook Pro 13" Unibody Mid 2012ハードドライブケーブルの交換 and heres the needed cable MacBook Pro 13" Unibody (Mid 2012) Hard Drive Cable. I would place a strip of electricians tape on the uppercase where the cable crosses over and you don’t want to fold the corner folds tightly! You want smooth arcs a hard crease will damage the cable!

I would then create a Mojave OS installer following this guide: How to create a bootable macOS Mojave installer drive.

MacBook Pro 13" Unibody (Mid 2012) Hard Drive Cableの画像

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MacBook Pro 13" Unibody (Mid 2012) Hard Drive Cable

$34.99

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Dustin さん、ありがとうございました!
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