the disk you inserted was not readable by this computer

[porcilan]

i have an external drive with very important content (Transcend).
When i insert the drive to my computer, it takes some minutes to recognize it and then the message "the disk you inserted was not readable by this computer" appear.

I opened the terminal and "diskutil list":


after i have dome diskutil repairDisk /dev/disk2 it wrote me "Partition map repair complete; you might now want to repeat the veryDisk of repairDisk verbs to perform further checks and repairs.

but it doesn't help ( i have tried many times "repairDisk /dev/disk2").


anyone know how to solve it?

 

[harryb2448]

G'day and welcome to the forums.

How is the external drive formatted? What is the partition format GUID or Apple Partition Map?

 

[porcilan]

G'day and welcome to the forums.

How is the external drive formatted? What is the partition format GUID or Apple Partition Map?

apple formatted

 

[chscag]

but it doesn't help ( i have tried many times "repairDisk /dev/disk2").

The disk is defective. If the data on it is important, you're probably going to need to send it to a data recovery specialist which will be very expensive. $$$

 

[pm-r]

Have you or anyone you know close by have DiskWarrior.app that could be tried and maybe recover?

Or one of the others like DataRescue.app???

 

[chscag]

Certainly both of those apps are worth a try, however, at around $100 each and after the command line repair disk command failed to repair the disk, I'm doubtful either would work. Disk Drill (the free version) would be a better choice.

 

[pm-r]

It might also be worth trying connecting the drive to a different computer and/or port and even try switching and using a different new known good working cable.