The MacBook Pro is the first choice for many users, partly because of its excellent storage speed. Instead of a traditional hard drive, it uses a solid-state drive (SSD), which stores data on flash memory.
On a Mac, repeated attempts with Disk Utility can make the case worse. If the files matter, see Bot’s SSD recovery, which starts with a free diagnosis.
However, a common problem for MacBook Pro users is that the Mac fails to recognize the SSD, and that can quickly become a real headache.
If you are dealing with this problem, this article explains some of the possible causes and solutions.
Why is my MacBook Pro not recognizing the SSD?
Any of the reasons below could be causing problems with the internal or external SSD on your MacBook Pro. Go through each one to find out what might be happening with your device.
Faulty adapter
Some older MacBook Pro models use a proprietary SSD connector, so a third-party SSD can only be installed with an adapter. External SSDs, in turn, are often connected through a SATA-to-USB adapter or dock.
That is why one possible cause of SSD problems on a MacBook Pro is a faulty adapter, or even a problem with the SSD interface on the logic board.
External SSD does not boot
Many people copy or sync their system to an external SSD so they can start up the Mac from it.
However, if the external SSD is not formatted with a file system and partition scheme the Mac can start up from (APFS or Mac OS Extended with a GUID partition map), the laptop will not recognize it as a startup disk.
Corrupted SSD
Corruption is a very common problem with MacBook Pro SSDs.
It usually happens when the computer is shut down abruptly and the file system becomes corrupted.
Settings that hide the drive
Finally, settings that hide the SSD in Disk Utility or Finder can also make it look as if the drive is not recognized. For example, Finder may be set not to show external disks on the desktop or in the sidebar.
How do I get my MacBook Pro to recognize my SSD?
Now that you know the possible causes of SSD problems on your MacBook Pro, let us look at 3 things you can do to fix them.
Check the external SSD connection
- Method 1: First, make sure the cable is working. Try a different cable: if the MacBook then recognizes the SSD, you have found the cause of the problem.
- Method 2: Make sure the adapter or dock is compatible with the SSD. Check whether the SSD is SATA or NVMe (M.2): a SATA-only adapter will not work with an NVMe SSD, and vice versa.
- Method 3: Connect a different SSD to the same adapter to confirm whether the adapter itself is working.
If none of these methods work, try the next option.
Look for the drive in Disk Utility
When your MacBook does not recognize the SSD, first check whether it appears in Disk Utility.
If it does, you can then check the drive for errors.
If you cannot find it in Disk Utility, the drive or its connection may be damaged, which prevents the MacBook from recognizing it.
To check, follow these steps:
- Step 1: in Finder, click “Go” and then “Utilities”;
- Step 2: open “Disk Utility”;
- Step 3: click “View” in the menu bar;
- Step 4: select “Show All Devices” and look for the external SSD in the sidebar.
Keep in mind that:
- If you used the SSD in another system and your MacBook cannot recognize it, the problem is probably the drive’s file system, which the Mac may not support or which may be corrupted. The drive may also be physically damaged;
- If the SSD is new, it will not be recognized until it has been initialized. In that case, you will see the message “The disk you attached was not readable by this computer”. To solve this, initialize the drive in Disk Utility. Never do this with an SSD that contains data, because initializing erases everything on it.
Use First Aid
Sometimes the SSD appears in Disk Utility but is not mounted.
If that is the case, you can mount it in a few seconds by following these steps:
- Step 1: open “Disk Utility” and select the SSD in the sidebar;
- Step 2: click “Mount” at the top of the window.
If the “Mount” option is grayed out or the drive will not mount, use “First Aid” to repair disk errors. To do this, follow these steps:
- Step 1: Open “Disk Utility”;
- Step 2: Select the grayed-out SSD volume in the sidebar;
- Step 3: Click “First Aid” at the top of the window and then “Run”. If First Aid reports errors it cannot repair and the SSD holds important data, stop there and do not erase the drive.
How do I recover data from my MacBook’s internal SSD or an external SSD?
If what you need is to recover the data from your MacBook, you have two options:
- Use data recovery software – only recommended for people with technical knowledge and previous experience with this kind of process, and only when the SSD is still recognized;
- Leave the data recovery to a specialized company, such as Bot, which can recover your data safely.
Data recovery for MacBook Pro with Touch Bar and soldered SSD
At Bot, we specialize in recovering data from MacBook Pro models with a built-in SSD. We handle any type of MacBook data recovery, including the 13-inch and 15-inch MacBook Pro with Touch Bar from 2016 and 2017, models from 2018 onwards with the T2 chip or Apple silicon (M1, M2, M3), soldered SSDs and burnt logic boards, thanks to the equipment we have for extracting data directly from the built-in SSD. This professional equipment is not available to the public or to regular repair centers. These are complex cases, so results cannot be guaranteed, but we always try.
As the best-rated multinational in data recovery, we offer data recovery for damaged MacBook Pro with Touch Bar models released in 2016 and 2017, as well as for any other MacBook. On the 13-inch and 15-inch MacBook Pro with Touch Bar, the SSD is soldered to the logic board, so data recovery is only possible with highly specialized tools. If you have a MacBook and need to recover your data, get in touch with us.
How do I format a new MacBook Pro SSD?
Formatting a new SSD on a MacBook Pro is simple: open Disk Utility, select the drive and click “Erase”. Choose the format you want (APFS is the usual choice for recent versions of macOS) and the GUID Partition Map scheme, and the drive is ready to use. Remember that erasing deletes all the data on the drive.
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Conclusion
The main reasons a MacBook Pro does not recognize an SSD are hardware faults (in the SSD or the adapter), a drive that has not been initialized or a corrupted file system. Settings that hide the drive can also be to blame.
To fix the problem, you can check the connection of the external SSD, look for the drive in Disk Utility or run the Mac’s First Aid tool.
If you have lost files and documents while trying to get your MacBook Pro to recognize the SSD, the best option is to leave the data recovery to a reliable company that specializes in it, like Bot.
Here, we use professional data recovery equipment to work on your SSD, so the electronic circuitry is handled with the care needed to avoid further damage.
In addition, our standard diagnosis is free and ready within 48 hours, so you quickly know what is wrong and receive a quote.
Trust a team specialized in data recovery, with more than two decades of experience and more than 200,000 cases: start your data recovery with Bot today!
