recovery from LaCie

Try unmounting it, then physically turn off the LaCie power for a couple of minutes, then plug it back in and then turn it on to see if mounts and Finder & Disk Utility "see" it. If neither do, reset the NVRAM as suggested earlier.

If you have been using Time Machine on another EHD then you can likey use your Time Machine backup to recover the data. However, if we have more informaiton such as what the issue is that the LaCie is having then we can assist.

You can start by doing each of the following:

• Safe Mode Reset instructions
• NVRAM Reset
• Try another cable to see if the cable failed.

If none of these work and the LaCie will not mount so you can get your data then the data is likely lost. This is why it is important to have a backup system and wise to have redundant backups.

You can take the LaCie to a data recovery service however expect the cost to be many thousands of $ to get some of the data back.

Good luck.

I would like to add, how is the LaCie formatted? You can see the format by launching disk utility and selecting the drive in the list. There have been other posts that external drives failed to mount after upgrading to Big Sur. Make sure you have updated software from LaCie.

I hope this helps.

Paul

Hi, here is a guide: Reset NVRAM or PRAM on your Mac - Apple Support

Cheers,

Jack

Resetting the NVRAM is extremely easy, please click the link for instructions. Before objecting to doing the NVRAM reset, please read how to do it and then decide if it is over your head. For most folks it is not over their heads but you need to know what it is before judging.

Hi Radders_3,

What exactly do you mean by "recovery"?

Cheers,

Jack