This one should be pretty easy. I have a J6+ on Android 9 that is now invisible to Windows 10 (after previously working fine). Here is what I've tried on the desktop:
Change USB cable
Change USB port
Disable and re-enable developer mode in Android
Download Samsung MTP drivers
Download Samsung Smart Switch
Try all of the same on a Windows 10 laptop (where it also worked two months ago)
Before a popup used to occur asking if I wanted data transfer, now nothing, only charging.
The fact that the problem exists on two different computers using different cables and ports leads me to believe it is the phone/Android.
Anything else I can try?
Change USB cable
Change USB port
Disable and re-enable developer mode in Android
Download Samsung MTP drivers
Download Samsung Smart Switch
Try all of the same on a Windows 10 laptop (where it also worked two months ago)
Before a popup used to occur asking if I wanted data transfer, now nothing, only charging.
The fact that the problem exists on two different computers using different cables and ports leads me to believe it is the phone/Android.
Anything else I can try?