How can I move files from the internal storage to the SD card?
Go to Settings -> Storage -> SD card -> touch setting icon at the top right corner on the screen -> touch “Storage settings” -> Choose “format as internal” -> Touch “ERASE&FORMAT”. If you choose Move later, you can move data by going to Settings -> Storage -> SD card -> touch icon at the top right corner-> Migrate data->touch Move content. After moving the data to the SD card, it will function as the device’s internal storage. Data such as downloads, music, pictures, etc. will be stored on the SD card by default.