Use APKPure App
Get HandleExternalStorage old version APK for Android
읽고 모든 애플 리케이션을위한 외부 저장 장치에 대한 쓰기 액세스를 활성화합니다
Enables read and write access to the external storage for all apps.
IMPORTANT
This app has no user interface. Enable it in Xposed - reboot - done.
IMPORTANT
Your device has to be rooted to install the required X-posed framework: http://tinyurl.com/cd46qco