Use of LaCie SSD for backup to Time Machine

Sequoia update seems making inoperable the Seagate "Toolkit.app" that opens the LaCie SSD used to backup to Time Machine. The "Unlock app" goes into an endless attempt to unlock, causing panic attacks, lock icons threading thru the menu, virtually unstoppable, memory hogging, etc., etc.

1) Any similar behavior observed? 2) any knowledge of Seagate and Apple working on their pieces communicating? (Seagate does not admit, btw. Yesterday call had me changing the cord to the Imac and the SSD changed, as a possibility of the problem - go figure!). Direct Finder app attempt at opening the SSD resulted in the behavior.

Responses and comments, guidance, welcomed!

iMac 21.5″, macOS 15.6

Posted on Aug 28, 2025 08:49 AM

20 replies

HWTech

Level 9

66,728 points

Aug 30, 2025 12:38 PM in response to Joseo

Joseo wrote:

Yes - that feels to be the next step.

Let me abuse you again with another question: can you point me to where I will find steps to do that? any special formatting parameters? 2) To "uninstall" Toolkit is simply to delete the file from the Main drive, right?

If the app used an installer, then you need to run the uninstaller for that app. Some apps may have an option on one of the menus to uninstall. Otherwise you may need to check the developer's/manufacturer's website for their uninstaller app.

An app which has an installer usually ends up placing files in multiple locations on the drive. If you just delete the app from the Applications folder, then you leave the system in an unstable state if those extensions/drivers remain active on the system.....they will be referencing a location which no longer exists. Otherwise you may need to manually delete those files.