Samsung SSD T1 Not working with OS Mojave
I cannot access my SSD T1 with Mac OS Mojave. Does not recognize the driver!
I have a thought, but I don't know if it will work. Did the T1 work OK with your previous OS? If so,
do you have a Time Machine backup or a bootable clone of your system before you installed Mojave. You could restore your system from the Time Machine backup or boot your bootable clone. If your Samsung Portable SSD software now works disable your Protection Password that you set. Do not reenable it again. The password protection feature is what is making your T1 inaccessible in Mojave.
Now upgrade to Mojave again or boot back to your Mojave drive and see if you can access your T1.
From Samsung's website, it seems they have kind of abandoned software support for the T1.