Hello , my friend your memory ram is very small and it full quickly. You need delete files from applicacions produced. for examples, the thumbails, files of pictures, webs ,etc. There is a program called FILE EXPLORER and other called CLEAN MASTER. YOU CAN LOOKING FOR THEM ON GOOGLE PLAY. THESE APPLICACCION DELETE HIDDEN FILES ( from applicaccions to prodeced) Thumbails, pictures. Etc. i recomemend 'u , downloand them, and ready, good bye to the memory always full. If you need help , let me know and i could help 'u.