Accidentally erased my 64gb usb sandisk with FAT instead of exFAT

[giluz]

I accidentally erased my 64gb usb sandisk with FAT instead of exFAT.
Now it says "The disk you inserted was not readable by this computer" and I can't recover it in any way.

sudo diskutil list returns:

/dev/disk2 (external, physical):
#: TYPE NAME SIZE IDENTIFIER
0: Apple_partition_scheme *62.7 GB disk2
1: Apple_partition_map 4.1 KB disk2s1
2: Apple_HFS 2.4 MB disk2s2

sudo gpt -r show /dev/disk2 returns

start size index contents
0 1 MBR
1 3737267
3737268 4672 2 MBR part 7
3741940 118766604

sudo fdisk /dev/disk2 returns

 #: id  cyl  hd sec -  cyl  hd sec [     start -       size]
------------------------------------------------------------------------
 1: 00    0   0   0 -    0   0   0 [         0 -          0] unused     
 2: 07 1023 254  63 - 1023 254  63 [   3737268 -       4672] HPFS/QNX/AUX
 3: 00    0   0   0 -    0   0   0 [         0 -          0] unused     
 4: 00    0   0   0 -    0   0   0 [         0 -          0] unused

Anyway I can fix this drive? Maybe with diskutil?

 

[rendyr]

if you have android devices, try to connect your drive using usb otg and format it from the phone.

it always works on corrupted sd cards, should works the same using usb devices.

 

[kohlson]

@rendyr has a good suggestion - try formatting on another platform, such as Windows. In my experience, formatting USB Flash devices has been a little troublesome. Sometimes I have to use Disk Utility to format to something other than I wanted first. For example, first to Mac OS, then to exFAT.