Samsung Portable SSD T1 doesn't work

That solution worked for me instead - Macbook 12" retina early 2015 (macOS Sierra 10.12.3).

I am convinced that the Activation software for T3 triggered the update of the SATA(?) driver (which happened automatically immediately after the T3 software install) and that was the reason it worked.

I recovered (apparently) the content of the drive. I sincerely hope you can work out a solution (what about using the same drive on a different computer?).

Same issue here, launching Samsung Portable SSD.app just give me the "loading..." spinner for 2 seconds, then nothing happens. No update available from Samsung yet, but I sent them a support inquiry.

So I am having all the issues described, but the solutions described have not worked for me.

Had a Samsung SSD T1 500Gb using the encryption software on it

Installed Mac OS Sierra

No longer working as usual

Previously encryption software wound boot up - you login in, then you use the drive as normal

Now drive is 'recognised', but it looks like a 'completely new' drive

Tried installing the new T3 software from both a brand new Samsung T3 SSD 500Gb drive as well as the Samsung website.

This appears to have worked for other people in forum, but for me the new T3 Software Crashes unexpectedly

Anyone else in my situation???

I am running a Mac Book Air

Grateful if anyone works this out

I have the same issue with the app crashing soon after install with the same image that you've shown after downloading the T3 drivers from the link provided. I have a T1 SSD 500GB.

The T3 install fixed the problem on my early 2013 15-inch MacBook pro, no crashes whatsoever. Sorry to hear that doesn't do it for everybody.

It's too bad that Samsung doesn't move quick to fix this, but they're probably too busy recalling their cell phones 😝

I contacted their support staff as well, but it seemed like I could teach *them* something, they didn't know about the potential T3 fix and told me I could only continue to use the drive without encryption under Sierra.

I had this exact same issue and it was driving me CRAZY. I got the T1 in April because it was on sale on Amazon. Seemed like a great deal, and when I was running El Capitan, it worked pretty well. So, I began using it to store some large files, i.e. photos from the last 10-15 years, all of my undergrad and grad school work, etc. Naturally, I wanted that information encrypted. I decided to use the built-in software, and set a password. However, when I upgraded to macOS Sierra this fall, I tried to access it again, and it kept giving me the Loading screen for two seconds, and then disappearing without showing any of my files. I scoured the internet, looking for some help. None of the suggestions people gave were working. I finally figured I'd do what I always hate to do, but hooked up the SSD to a Windows 7 machine at work. Sure enough, I installed the activation software on the SSD, and then was able to unlock the SSD with my password I had set in April, and permanently disabled the encryption password.

So, moral of the story is Samsung isn't probably ever going to update their software for macOS Sierra. If you can access a Windows PC, hook up your SSD, install the activation software, decrypt the SSD, move on with your life, and never buy another Samsung product ever again.