SanDisk 2Tb external drive

I bought a SanDisk 2Tb ssd to unload my current 500 gig drive that was getting full. I moved a bunch of files over to the new drive after formatting it to Apple apfs. It worked fine for two or three days. Now, when I start up, I get a warning that the drive cannot be read by my computer. I can ignore the warning eject the drive or initialize it. The latter would erase all the files I have on it. It won’t mount and I don’t know what’s wrong. Can you advise?

The first thing to do is check the connection is proper and make sure that your computer has the latest drivers for your SSD. You can download the latest drivers from the SanDisk website.

The information I have says the San Disk Extreme Pro needs no driver on a Mac.

United We Win-
Divided We Lose

There could be several reasons why the drive is not being recognized or mounted properly. Here are a few steps you can try to troubleshoot the problem:

  1. Check physical connections: Ensure that the SSD is properly connected to your computer. Try disconnecting and reconnecting the drive, making sure it is securely plugged in.

  2. Test on a different computer: Connect the SSD to another computer to see if it can be recognized and mounted. This will help determine if the issue is specific to your computer or the SSD itself.

  3. Use a different cable or port: Try using a different USB or Thunderbolt cable, as well as a different port on your computer. Sometimes, faulty cables or ports can cause connection issues.

  4. Update drivers and firmware: Check if there are any firmware updates available for your SanDisk SSD and install them. Additionally, make sure your computer’s operating system and drivers are up to date, as outdated software can sometimes cause compatibility issues.

  5. Run disk utility tools: On macOS, you can use the built-in Disk Utility tool to diagnose and repair disk-related issues. Open Disk Utility, select the problematic SSD, and click on the “First Aid” button to run the repair process.

  6. Data recovery: If all else fails and you need to recover your data from the SSD, you can try using data recovery software. There are various third-party tools available that can help recover files from a non-mounting drive such as Stellar Data Recovery for Mac.

If none of these steps resolve the issue, it’s possible that there might be a hardware problem with the SSD itself. In such cases, I recommend reaching out to SanDisk’s customer support or returning the drive if it’s still under warranty for a replacement or repair.

You likely need a firmware update for the SSD. Unfortunately, I have the same problem. SanDisk firmware updates can only be applied from a Windows PC. My library’s Windows PC couldn’t recognize the drive, so I had to get an RMA authorization to return the disk under warranty so they can apply the update and send back to me. I decided to buy a different brand that supports applying updates from a Mac. When the SanDisk arrives, I won’t use it because a future failure could leave me in the same situation. Can’t believe WD hasn’t supported the Mac. I had an old WD drive years ago that crapped out on me too. Should’ve known better.

This my second failure as well. I was so pissed, I threw this latest one in the trash and will never own a WD again. Thanks

Together we win
Divided we lose