You have added the information block to the device type, refer to Adding information blocks.
Proceed as follows
Click the Upload button to add an image.
→ The Upload dialog is displayed.
Click the Upload icon to select an image.
Click the Confirm button to upload the image to the device.
→ The image has been added to the device.
If necessary, repeat the steps to upload another image.
To remove an image, click the icon to open the drop-down menu. Select either the option Remove from Device or Remove from Device and Attachments. The Remove from Device option removes the link but keeps the image whereas the Remove from Device and Attachments deletes the image as a whole.