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Home Documentation User guide for whatsminer asic APPENDIX 3.1 SD Card Formatting
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APPENDIX 3.1 SD Card Formatting

This guide will help you properly format your SD card to the FAT32 file system using built-in Windows tools. This is necessary for correctly writing the firmware image.

Before you start:

  • Connect the SD card to your computer and ensure it is detected by the system.
  • Back up all important data — formatting will erase all contents.
  • If you are using a microSD adapter, make sure the write-protection switch is unlocked.
Step 1: Opening "Disk Management":
  • Right-click on the Start button (Windows logo).
  • Select "Disk Management".
Step 2: Deleting Existing Partitions/Volumes:

Locate your SD card in the list of disks (typically labeled as "Removable").

If the card has any existing partitions:

  • Right-click on each allocated partition/volume.
  • Select "Delete Volume...".
  • Confirm the volume deletion.
  • If the SD card has multiple volumes, repeat for all volumes until the entire card space shows the status "Unallocated".
Step 3: Creating a New Partition/Volume:
  • Right-click on the unallocated space of the SD card.
  • Select "New Simple Volume...".
  • In the volume wizard that opens:
    1. Click "Next >" on each step.
    2. Specify the maximum volume size.
    3. Assign a drive letter (e.g., F).
    4. Select the FAT32 file system and enable "Perform a quick format".
    5. Click "Finish" to complete.
Result:

After formatting is complete, the SD card should appear as a single partition with the FAT32 file system and have the status "Healthy (Basic Data Partition)".

The disk should look like this:

SD card formatting is complete.