If you are having problems with Android mobile phone on macOS and Smart Switch app. Your need to remove Samsung drivers. And after that Android File Transfer will works fine!
An easy way to use this shell-script is to copy/paste this line into the console:
curl https://raw.githubusercontent.com/xvoland/fix-android-file-tranfer-mtp-macos/master/fix-android-file-tranfer-mtp-macos.sh | sudo sh
- Samsung Smart Switch https://www.samsung.com/uk/support/switching/#top-macos
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