Which folder is the text message in?

There is no way to know this. Generally speaking, for example, when the software of Nokia mobile phone is programmed, it will directly set aside a part of the so-called mobile phone memory space as the storage space for short messages, and this operation is completed when the mobile phone leaves the factory. In fact, sometimes the storage space of your mobile phone is more than that. For example, it is said on the Internet that your 5320 has 140MB, which means 140. As for the memory card you mentioned, it's the first time I heard of it. In general, it seems to be the default storage. I didn't ask about the storage path. Even if there is, then your card may automatically create a new folder, but it is definitely hidden. If you have to see where it is, you can try it. Open the removable disk of the card and click Tools-Folder Options-View-Advanced Settings above to find and display all files or folders.