If you upload an image to the gallery and wish to change or replace that image with an updated version or different image, you can use the CHANGE MEDIA option. This option is found under your gallery image (as per graphic below). Click on Change Media and follow the instructions.
PLEASE NOTE that this option will NOT be available if you have uploaded your image to an ALBUM.
PLEASE NOTE that this option will NOT be available if you have uploaded your image to an ALBUM.