Checking the Amount of Space on the SD:

  1. Tap "Apps" while viewing the home screen
  2. Go to "Settings"
  3. Swipe to "Phone" and tap "Storage"
  4. View the "Available" value under "SD Card"

Formatting the SD Card:

WARNING! When you format the SD card, all files stored on it will be deleted, including ringtones / audio files, contacts, downloaded content etc. Before proceeding it's recommended that you create backups. To format the SD Card:

  1. Tap "Apps" from the home screen
  2. Access "Settings"
  3. Under "SD Card", tap "Format SD Card"
  4. Tap "Erase SD Card"
  5. In the pop-up message, tap "Erase Everything" to confirm

Opening or Deleting Files Stored on the SD Card

Deleting SD Card Files Using the Smartphone:

  1. While viewing the home screen, tap "Apps"
  2. Go to "Settings"
  3. Swipe to "Phone" and tap "Storage"
  4. Swipe to "SD Card" and tap "SD memory card"
  5. Tap "Make more space" and select "Browser", "Gallery", "Music" or "Miscellaneous"
  6. Mark the check boxes associated with the files / folders you wish to delete
  7. Tap "Delete" > "OK"

Opening or Deleting Files Using a Windows Computer:

  1. Connect the HTC Desire 820 to your computer using the USB cable
  2. Drag the "Status" bar down
  3. Tap "USB Connected" > "Connect USB storage"
  4. From the AutoPlay window that should appear on the computer, click to "Open folder to view files"
  5. Navigate to the desired files stored on the SD card
  6. Double-click a file to open it
  7. Right-click a file and click "Delete" to remove it from the SD storage
  8. When done, click the "Removable Storage" icon located in the system tray, and "Eject" your device
  9. Safely disconnect your smartphone from the computer

Transferring Files Between a Computer and the SD Card

Via a Mac Computer:

  1. Install HTC Sync Manager on the Mac, if necessary
  2. Connect the Desire 820 to the Mac via USB
  3. HSM should auto-launch once the smartphone is connected
  4. Follow the on-screen prompts to view and manage the files stored on the SD card

Using a Windows Computer:

  1. Establish a USB connection between the PC and Desire 820
  2. Swipe the "Status" bar down and tap "USB connected" > "Connect USB storage"
  3. From the AutoPlay window on the PC, click to open the device's files and folders
  4. Open the SD card directory and navigate to the desired files
  5. Transfer the desired files between the SD card and PC
  6. Once the transfer is done, tap "Disconnect storage from PC" on the smartphone
  7. Safely disconnect your smartphone

Change the App Storage Location

NOTE: Your smartphone will use the phone's internal memory to store most application data. However, you can change the settings of various pre-loaded applications, so that they use the SD card storage instead.

Change the "Internet" App's Storage Settings:

  1. Tap "Apps" while on the home screen
  2. Open the "Internet" application
  3. Press "Menu" and go to "Settings"
  4. Tap "Advanced" > "Download storage"
  5. Select "Storage Card"

Change Storage Settings for the "Camera":

  1. Launch the "Camera" application
  2. From the viewfinder, press "Menu"
  3. Tap "Settings" > "Storage"
  4. Select "SD card"

Change the Storage Location for "Voice Recorder:

  1. Tap "Apps" while on a home screen
  2. Launch "Voice recorder"
  3. Press "Menu" and tap "Settings"
  4. Tap "Storage" and select "SD Card"

See More: HTC Desire 820: Manage the SD Card / External Storage