How does Samsung mobile phone WeChat access the memory card?

According to your question: As far as I know your specific model information, if you are a Samsung mobile phone, if you move the mobile phone application to the SD card, I suggest you: 1. If you use an installation system with version 2.3 or lower installed, it supports moving the software to the SD card. Operation: Settings-Applications-Manage Applications-Select a program-Move to SD card. 2. If 4.2/4.3/4.4 operating system is installed, if you need to move the software to an external SD card, please try: Settings-More (General) Application Manager-Select Program-Move to SD card (this function is not supported if this option is not available). 3. Some models are upgraded to Android 4.3 operating system, please try: Settings-More) Application Manager-Select a program-Move to SD card (this function is not supported without this option) 4. The mobile phone system is version 4.3 or above, please try: Settings-Application Manager-Select a program-Move to SD card (if this option is not available, this function is not supported). You can move multimedia files stored in your mobile phone to an external SD card: 1. Multimedia file: open my file-select the folder to move-menu button-move to -extsdcard 2. If it is a picture/video shot by a camera, you can set the storage path to the SD card in advance. Turn on the camera-Settings (pinion icon)-Memory-Memory Card 3. Bring your own browser (that is, an "Earth" icon) download option. The path can be modified: browser-menu key-settings-advanced settings/content settings-default memory -SD card/device (only the download storage location has changed, such as installing an application or installing it in the built-in hard disk of the mobile phone).