If some pictures cannot be viewed, please check the following: 1) Are your pictures stored in NAS and is the file size over 2.5 MB? The restriction on photo size is only applicable to certain NAS models. If this is the problem, please resize your photo and try again. 2) Are your pictures in JPG format? Your network music player supports a few popular picture formats on the market. If this is the problem, please convert your pictures to JPG format.