I have an external storage with 2TB that was working nicely. But since last week, when I unplugged the USB before eject it, the disk is not readable anymore.

When I insert USB, I can actually see this message box:

[![enter image description here](https://i.stack.imgur.com/50iN3.png)](https://i.stack.imgur.com/50iN3.png)

**I also tried to repair it on Terminal:**

```
diskutil unmountDisk force /dev/disk2
diskutil repairVolume /dev/disk2

```

That results on this error:

```
Error starting file system repair for disk2: Unrecognized file system (-69846)

```

Can anybody help me please?

**EDIT**

Terminal comand `sudo gpt -r show /dev/disk` returns:

> 
> gpt show: unable to open device '/dev/disk3': Resource busy
> 
> 
> 

(even after `umountDisk`)

---

Terminal comand `sudo fdisk /dev/disk` returns:

```
Disk: /dev/disk3    geometry: 1003/16/63 [1011242 sectors]
Sector size: 4096 bytes
Signature: 0x0
         Starting       Ending
 #: id  cyl  hd sec -  cyl  hd sec [     start -       size]
------------------------------------------------------------------------
 1: 00    0   0   0 -    0   0   0 [         0 -          0] unused      
 2: 00    0   0   0 -    0   0   0 [         0 -          0] unused      
 3: 00    0   0   0 -    0   0   0 [         0 -          0] unused      
 4: 00    0   0   0 -    0   0   0 [         0 -          0] unused   

```