Identify the Signaloid C0-microSD

Insert the Signaloid C0-microSD into your computer. The device should present itself as a 20.2 MB (19.3 MiB) unformatted block storage device. Depending on your OS, you might be prompted to format the device. Do not format the device; instead ignore any prompt. In Figure 1, you can find an example of the pop-up message you might see in macOS:

Figure 1: Pop-up message in macOS when inserting the C0-microSD.
Verify the device path at which the Signaloid C0-microSD device shows up in your operating system. Following is a list of examples on different operating systems.

On macOS, you can run diskutil list

  % diskutil list

  ...
  /dev/disk4 (internal, physical):
  #:                       TYPE NAME                    SIZE       IDENTIFIER
  0:                                                   *20.2 MB    disk4

In this example, the Signaloid C0-microSD device is located in /dev/disk4.

On Linux, you can run lsblk

  % lsblk

  NAME   MAJ:MIN RM   SIZE RO TYPE MOUNTPOINTS
  sda      8:0    0    64G  0 disk 
  ├─sda1   8:1    0     1G  0 part /boot/efi
  └─sda2   8:2    0  62.9G  0 part /
  sdb      8:16   1  19.3M  0 disk 
  sr0     11:0    1  1024M  0 rom  

In this example, the Signaloid C0-microSD device is located in /dev/sdb.

On Windows, you can run diskpart followed by list disk and exit

% diskpart

DISKPART> list disk

  Disk ###  Status         Size     Free     Dyn  Gpt
  --------  -------------  -------  -------  ---  ---
  Disk 0    Online          256 GB      0 B        *
  Disk 1    Online           19 MB      0 B

DISKPART> exit

On Windows, raw disk devices can be accessed via a special path format: \\.\PhysicalDriveN, where N is the disk number. In this example, the C0-microSD is Disk 1, and its path is \\.\PhysicalDrive1.